ï»??xml version="1.0" encoding="utf-8" standalone="yes"?>精品欧美一区二区在线观看视频,亚洲视频在线观看视频,午夜成在线wwwhttp://www.aygfsteel.com/IPV6-1207/archive/2012/10/23/390116.html数据库时é—?/dc:creator>数据库时é—?/author>Tue, 23 Oct 2012 08:09:00 GMThttp://www.aygfsteel.com/IPV6-1207/archive/2012/10/23/390116.htmlhttp://www.aygfsteel.com/IPV6-1207/comments/390116.htmlhttp://www.aygfsteel.com/IPV6-1207/archive/2012/10/23/390116.html#Feedback0http://www.aygfsteel.com/IPV6-1207/comments/commentRss/390116.htmlhttp://www.aygfsteel.com/IPV6-1207/services/trackbacks/390116.html

BackboneFast是对UplinkFast的一¿Uè¡¥å……,UplinkFast能够‹‚€‹¹‹ç›´˜qžé“¾è·¯çš„失效åQ?/span>BackboneFast是用来检‹¹‹é—´æŽ¥é“¾è·¯çš„失效。当启用äº?/span>BackboneFast的交换机‹‚€‹¹‹åˆ°é—´æŽ¥é“¾èµ\失效之后åQŒä¼šé©¬ä¸Šä½‰K˜»å¡žçš„端口˜q›å…¥ç›‘听状态,ž®‘了20S的老化旉™—´ã€‚左边的囑֒Œä¸‹é¢çš„图均来自思科的官æ–ÒŽ–‡æ¡£ï¼š

  在正常情况下åQ?/span>Switch C上右边的端口会处äº?/span>Blocking状态,å½?/span>L1的链路发生故障的时候,虽然è¯?/span>Switch C是检‹¹‹ä¸åˆŽÍ¼Œä½†æ˜¯Switch Bä¼šè®¤ä¸ø™‡ªå·Þqš„è·Ÿæ¡¥åQŒç„¶åŽé€šè¿‡L3链èµ\发é€?/span>BPDUã€?/span>Switch C收到˜q™ä¸ªBPDU之后åQŒå‘现是‹Æ¡çñ”BPDUåQŒæ‰€ä»¥ç¡®å®šæœ‰éžç›´˜qžé“¾è·¯çš„æ•…éšœã€?/span>Switch C会从根端口发é€?/span>RLQåQ?/span>Switch AåQˆæ ¹æ¡¥ï¼‰æŽ¥åˆ°RLQåQŒä»¥RLQ响应˜q›è¡Œåº”ç­”åQ?/span>Switch C收到SwitchAçš?/span>RLQ响应åQŒçŸ¥é“根桥还在,然后把右边的端口ä»?/span>blocking直接˜q‡åŽ»åˆ?/span>Listening状态,如下图所½Cºã€?/span>

  å½?/span>L1链èµ\恢复的时候,BackboneFast会马上把Switch C上右侧的端口的状态设ä¸?/span>blockingã€?/span>

  从不同的端口收到‹Æ¡çñ”BPDU的情况:

  1. 当交换机从阻塞端口收到次¾U?/span>BPDU的时候,那么该交换机上的根端口和其他é˜Õd¡žç«¯å£ž®†æˆä¸ºåˆ°è¾¾æ ¹æ¡¥çš„æ›¿ä»£è·¯å¾„ã€?/span>

  2. 当交换机从根端口收到‹Æ¡çñ”BPDUåQŒé‚£ä¹ˆå½“前所有的é˜Õd¡žç«¯å£éƒ½å°†æˆäؓ辑ֈ°æ ÒŽ¡¥çš„æ›¿ä»£èµ\径ã€?/span>

  3. 当交换机从根端口收到‹Æ¡çñ”BPDUåQŒåƈ且交换机上不存在é˜Õd¡žç«¯å£çš„话åQŒé‚£ä¹ˆäº¤æ¢æœºè®¤å®šåˆ°è¾¾æ ÒŽ¡¥çš„链路已¾l?/span>down掉了åQŒåœ¨è€åŒ–æ—‰™—´åˆîCº†ä¹‹åŽåQŒäº¤æ¢æœºž®†é€šè¿‡æŠŠè‡ªå·±å®£å‘ŠäØ“æ ÒŽ¡¥å¼€å§‹æ­£å¸¸çš„STP选ä‹D˜q‡ç¨‹ã€?/span>

  配置BackboneFast

  Switch(config)#spanning-tree backbonefast

  注意事项

  如果要启ç”?/span>BackboneFastç‰ÒŽ€§ï¼Œæˆ‘们应该在网¾lœä¸­çš„æ‰€æœ‰äº¤æ¢æœºä¸Šéƒ½å¯ç”¨ã€?/span>



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CCNPè·?ç”?é€?æ‹?åŽ?ç?/title><link>http://www.aygfsteel.com/IPV6-1207/archive/2012/10/15/389571.html</link><dc:creator>数据库时é—?/dc:creator><author>数据库时é—?/author><pubDate>Mon, 15 Oct 2012 06:13:00 GMT</pubDate><guid>http://www.aygfsteel.com/IPV6-1207/archive/2012/10/15/389571.html</guid><wfw:comment>http://www.aygfsteel.com/IPV6-1207/comments/389571.html</wfw:comment><comments>http://www.aygfsteel.com/IPV6-1207/archive/2012/10/15/389571.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/IPV6-1207/comments/commentRss/389571.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/IPV6-1207/services/trackbacks/389571.html</trackback:ping><description><![CDATA[<div id="wmqeeuq" class="PublishedByWebStory-[6]1_36BD1FBC1EFA4588819F874DAFDAB315_F4EFE50931EA4853BAD5FCFB844D9A64">1.1路由选择基础知识<br/> 路由是将对象从一个地方è{辑֏‘到另一个地方的一个中¾l§è¿‡½E?br/> 学习和维持网¾lœæ‹“朴结构知识的机制被认为是路由功能。渡­‘Šæ•°æ®æµ¾lèµ\由器˜q›å…¥æŽ¥å£<br/> ½I¿è¿‡è·¯ç”±å™¨è¢«¿U»é€åˆ°å¤–出接口的过½E‹ï¼Œæ˜¯å¦ä¸€™å¹å•独的功能åQŒè¢«è®¤äؓ是交æ?转发功能。èµ\ç”Þp®¾å¤‡å¿…™åÕdŒæ—¶å…·æœ‰èµ\ç”±å’Œäº¤æ¢çš„åŠŸèƒ½æ‰å¯ä»¥ä½œäØ“ä¸€å°æœ‰æ•ˆçš„ä¸­ç‘ô讑֤‡ã€?br/> ä¸ÞZº†˜q›è¡Œè·¯ç”±åQŒèµ\由器必须知道下面三项内容åQ?br/> l路由器必™åȝ¡®å®šå®ƒæ˜¯å¦‹È€‹zÖMº†å¯¹è¯¥åè®®¾l„的支持åQ?br/> 2路由器必™åȝŸ¥é“目的地¾|‘络åQ?br/> 3路由器必™åȝŸ¥é“哪个外出接口是到达目的地的最佌™µ\ã€?br/> 路由选择协议通过度量值来军_®šåˆ°è¾¾ç›®çš„地的最佌™µ\径。小度量å€ég»£è¡¨ä¼˜é€‰çš„路径åQ›å¦‚果两条或更多路径都有一个相同的ž®åº¦é‡å€û|¼Œé‚£ä¹ˆæ‰€æœ‰è¿™äº›èµ\径将被åã^½{‰åœ°åˆ†äín。通过多条路径分流数据‹¹é‡è¢«ç§°ä¸ºåˆ°ç›®çš„地的负蝲均衡ã€?br/> ?<br/> 执行路由操作所需要的信息被包含在路由器的路由表中åQŒå®ƒä»¬ç”±ä¸€ä¸ªæˆ–多个路由选择协议˜q›ç¨‹ç”Ÿæˆã€‚èµ\ç”Þp¡¨ç”±å¤šä¸ªèµ\由条目组成,每个条目指明了以下内容:<br/> l学习该èµ\由所用的机制åQˆåŠ¨æ€æˆ–æ‰‹åŠ¨åQ?br/> l逻辑目的åœ?br/> l½Ž¡ç†è·ç¦»<br/> l度量å€û|¼ˆå®ƒæ˜¯åº¦é‡ä¸€æ¡èµ\径的æ€?æ€Õd¼€é”€"的一个尺度)<br/> låŽÕd¾€ç›®çš„åœîC¸‹ä¸€HOP的中¾l§è®¾å¤‡ï¼ˆè·¯ç”±å™¨ï¼‰çš„地址åQ?br/> l路由信息的新旧程åº?br/> l与要åŽÕd¾€ç›®çš„地网¾lœç›¸å…Œ™”的接å?br/> 使用命ä×oSHOW IP ROUTE可看åˆîC»¥ä¸Šå†…å®?br/> 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在了解了¾|‘络拓朴¾l“æž„åQŒä¸”路由表中已包含了到已知地¾|‘络的最佌™µ\径后åQŒå‘˜q™äº›ç›®çš„地的数据转发ž®±å¯ä»¥å¼€å§‹äº†åQ›ï¼‰<br/> 1.2 路由选择协议<br/> ?<br/> 有类别èµ\由选取择(classful routingåQ‰æ¦‚˜q?br/> 不随各网¾lœåœ°å€å‘送子¾|‘掩码信息的路由选择协议被称为有¾cÕdˆ«çš„选择协议åQˆRIPv1、IGRPåQ?br/> 当采用有¾cÕdˆ«è·¯ç”±é€‰æ‹©åè®®æ—Óž¼Œå±žäºŽåŒä¸€ä¸È±»¾|‘络åQˆA¾c…R€B¾cÕd’ŒC¾c»ï¼‰æœ‰æ‰€æœ‰å­¾|‘络都必™åÖM‹É用同一子网掩码。运行有¾cÕdˆ«è·¯ç”±é€‰æ‹©åè®®çš„èµ\由选择协议的èµ\由器ž®†æ‰§è¡Œä¸‹é¢å·¥ä½œçš„一™å¹ä»¥¼‹®å®šè¯¥èµ\由型¾|‘络部分åQ?br/> l如果路由更新信息是关于在接收接口上所配的同一ä¸È±»¾|‘络的,路由器将采用配置在接口上的子¾|‘掩码;<br/> l如果路由更新是关于在接收接口上所配的不同ä¸È±»çš„网¾lœçš„åQŒèµ\由器ž®†æ ¹æ®å…¶æ‰€å±žåœ°å€¾cÕdˆ«é‡‡ç”¨¾~ºçœçš„子¾|‘掩码ã€?br/> 有类别归¾UŒ™µ\ç”Þqš„生成是由有类别èµ\由选择协议自动处理çš?br/> 无类别èµ\由选择(classless routing)概述<br/> 无类别èµ\由选择协议包括开放最短èµ\径优先(OSPFåQ‰ã€EIGRP、RIPV2、中间系¾lŸåˆ°ä¸­é—´¾pȝ»ŸåQˆIS-ISåQ‰å’Œè¾¹ç•Œ¾|‘关协议版本4åQˆBGP4åQ‰ã€?br/> 在同一ä¸È±»¾|‘络中ä‹É用不同的掩码长度被称为可变长度的子网掩码åQˆVLSMåQ‰ã€‚æ— ¾cÕdˆ«è·¯ç”±é€‰æ‹©è·¯ç”±é€‰æ‹©åè®®æ”¯æŒVLSMåQŒå› æ­¤å¯ä»¥æ›´ä¸ºæœ‰æ•ˆçš„讄¡½®å­ç½‘掩码åQŒä»¥æ»¡èƒö不同子网对不同主机数目的需求,可以更充分的利用ä¸ÀLœºåœ°å€ã€?br/> 多数距离矢量型èµ\由选择协议产生的定期的、例行的路由更新只传输到直接相连的èµ\ç”Þp®¾å¤‡ã€?br/> 在纯距离矢量型èµ\ç”ÞqŽ¯å¢ƒä¸­åQŒèµ\由更新包括一个完整的路由表,通过接收盔R‚»è®‘Ö¤‡çš„全路由表,路由能够核查所有已知èµ\由,然后æ ÒŽ®æ‰€æŽ¥æ”¶åˆ°çš„æ›´æ–°ä¿¡æ¯ä¿®æ”¹æœ¬åœ°è·¯ç”±è¡¨ã€‚解册™µ\由问题的距离矢量法有时被¿UîCØ“" 传闻路由åQˆrouting by rumoråQ?<br/> CISCO IOS支持几种距离矢量型èµ\由选择协议åQŒå‡¶æ‰‹RIPv1、RIPv2å’ŒIGRP。CISCO也直持EIGRPåQŒå®ƒæ˜¯ä¸€¿Ué«˜¾U§çš„距离矢量型èµ\由选择协议ã€?br/> 路由选择协议通常与协议组的网¾lœå±‚å…Œ™”<br/> 大多数距¼›ÈŸ¢é‡åž‹è·¯ç”±é€‰æ‹©åè®®é‡‡ç”¨è´ä¹æ›?¼›ç‰¹(Bellman-Ford)½Ž—法来计½Ž—èµ\由。EIGRP是一¿Ué«˜¾U§çš„距离矢量路由协议åQŒå®ƒé‡‡ç”¨å¼¥æ•£ä¿®æ­£½Ž—法åQˆD UALåQ?br/> Ciscoçš„IP距离矢量型èµ\由选择协议的比è¾?br/> 特征RIPv1RIPv2IGRPEIGRP<br/> 计数到无限ïŽ×åQ¸ïŽ×<br/> 横向距离åQ¸ïŽ×åQ¸ïŽ×<br/> 抑制计时器ïŽ×åQ¸ïŽ×<br/> 触发式更斎ͼŒè·¯ç”±åå‘ åQ¸ïŽ×åQ¸ïŽ×<br/> 负蝲均衡-½{‰æˆæœ¬èµ\径ïŽ×åQ¸ïŽ×åQ?br/> 负蝲均衡-非等成本路径åQ¸ïŽ×<br/> VLSM支持åQ¸ïŽ×<br/> 路由½Ž—法贝尔æ›?¼›ç‰¹è´å°”æ›?¼›ç‰¹è´å°”æ›?¼›ç‰¹DUAL<br/> åº¦é‡å€ÆDŸ©æ•°èŸ©æ•°å¤åˆå¤å?br/> è·Ïx•°é™åˆ¶1515100100<br/> 易扩展性小ž®ä¸­å¤?br/> 注:IGRPå’ŒEIGRPçš„èŸ©æ•°é™åˆ¶ç¼ºçœäØ“100åQŒä½†æ˜¯å¯ä»¥é…¾|®åˆ°æœ€å¤§äØ“255ã€?br/> 链èµ\状态型路由选择协议只当¾|‘络拓朴¾l“构发生变化时才生成路由更新数据包。当链èµ\状态发生变化时åQŒæ£€‹¹‹åˆ°˜q™ä¸€å˜åŒ–的设备就生成一个关于该链èµ\åQˆèµ\由)的链路状态通告åQˆL SAåQ‰ã€‚随后LSA通过一个特ŒDŠçš„多目¾l„播地址被传播给所有相邻设备。每台èµ\ç”Þp®¾å¤‡éƒ½ä¼šä¿ç•™LSA拯‚´åQŒåƈ向其盔R‚»è®‘Ö¤‡è½¬å‘该LSAåQˆè¿™ä¸ªè¿‡½E‹å˜¿UîCؓ扩散f loodingåQ‰ç„¶åŽæ›´æ–°å…¶æ‹“朴¾l“构数据库(˜q™æ˜¯ä¸€ä¸ªåŒ…含网¾lœæ‰€æœ‰é“¾è·¯çŠ¶æ€ä¿¡æ¯è¡¨åQ‰ã€‚LSA扩散被用于确保所有èµ\ç”Þp®¾å¤‡éƒ½èƒ½äº†è§£åˆ°˜q™ä¸ªå˜åŒ–åQŒè¿™æ ·å®ƒä»¬å°±èƒ½å¤Ÿæ›´æ–°å®ƒä»¬çš„æ•°æ®ï¼Œòq¶ç”Ÿæˆä¸€ä¸ªæ›´æ–°è¿‡çš„、反映新的网¾lœæ‹“朴结构的路由表ã€?br/> Cisco的链路状态型路由选择协议的比è¾?br/> 特征OSPFIS-ISEIGRP<br/> 要求体系化拓朴结构ïŽ×åQ?br/> 保留å¯Òމ€æœ‰å¯èƒ½èµ\ç”Þqš„了解åQ¸ïŽ×åQ?br/> 路由归纳-人工åQ¸ïŽ×åQ?br/> 路由归纳-自动åQ?br/> 事äšg触发式通告åQ¸ïŽ×åQ?br/> 负蝲均衡-½{‰æˆæœ¬èµ\径ïŽ×åQ¸ïŽ×<br/> 负蝲均衡-非等成本路径åQ?br/> VLSM支持åQ¸ïŽ×åQ?br/> 路由½Ž—法DijkstraIS-ISDUAL<br/> 度量值链路成本(带宽åQ‰é“¾è·¯æˆæœ¬ï¼ˆå¸¦å®½åQ‰å¤å?br/> è·Ïx•°é™åˆ¶æ— ï¼‘åQï¼’åQ”1åQï¼<br/> 易扩展性大很大å¤?br/> 各èµ\由器中的路由˜q›ç¨‹éƒ½å¿…™åȝ•™æœ‰åˆ°å„可能目的地逻辑¾|‘络的无环èµ\单èµ\径,当所有èµ\ç”Þp¡¨éƒ½è¾¾åˆ°åŒæ­¥ï¼Œä¸”每个èµ\ç”Þp¡¨éƒ½åŒ…含有到各目的地网¾lœçš„一条可用èµ\由时åQŒç½‘¾lœå°±è¾‘Öˆ°äº†æ”¶æ•›çŠ¶æ€ã€‚æ”¶æ•›æ˜¯åœ¨ç½‘¾lœæ‹“朴结构发生变化后åQŒæ¯”如增加了新的路由或现有èµ\ç”Þqš„状态发生了变化后,与èµ\ç”Þp¡¨åŒæ­¥ç›¸å…³è”çš„‹zÕdЍã€?br/> 收敛旉™—´æ˜¯ç½‘¾lœä¸­æ‰€æœ‰èµ\由对当前拓朴¾l“构的认知达åˆîC¸€è‡´æ‰€éœ€çš„æ—¶é—ß_¼Œ¾|‘络的大ž®ã€æ‰€ä½¿ç”¨çš„èµ\由选择协议以及众多可配¾|®çš„计时器都能够影响收敛旉™—´ã€?br/> 有两¿Uæ£€‹¹‹çš„æ–ÒŽ³•åQ?br/> l当物理层或数据链路层没能接收åˆîC¸€å®šæ•°é‡ï¼ˆé€šå¸¸æ˜?åQ‰çš„˜qžç®‹keepalive消息æ—Óž¼Œž®Þp®¤ä¸ø™¯¥é“¾èµ\失效ã€?br/> l当èµ\由选择协议没能接收åˆîC¸€å®šæ•°é‡ï¼ˆé€šå¸¸æ˜?åQ‰çš„˜qžç®‹Hello消息或èµ\由更新或相类似消息时åQŒå°±è®¤äؓ该链路失效了ã€?br/> <br/> 大多数èµ\由选择协议都具有防止在链èµ\状态è{换过½E‹ä¸­äº§ç”Ÿæ‹“朴¾l“构环èµ\用的计时器ã€?/div><img src ="http://www.aygfsteel.com/IPV6-1207/aggbug/389571.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/IPV6-1207/" target="_blank">数据库时é—?/a> 2012-10-15 14:13 <a href="http://www.aygfsteel.com/IPV6-1207/archive/2012/10/15/389571.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>子网划分讲解及练习(二)http://www.aygfsteel.com/IPV6-1207/archive/2012/09/26/388574.html数据库时é—?/dc:creator>数据库时é—?/author>Wed, 26 Sep 2012 04:52:00 GMThttp://www.aygfsteel.com/IPV6-1207/archive/2012/09/26/388574.htmlhttp://www.aygfsteel.com/IPV6-1207/comments/388574.htmlhttp://www.aygfsteel.com/IPV6-1207/archive/2012/09/26/388574.html#Feedback0http://www.aygfsteel.com/IPV6-1207/comments/commentRss/388574.htmlhttp://www.aygfsteel.com/IPV6-1207/services/trackbacks/388574.html

¾lƒä¹ é…ç½®

 

R1配置åQ?/span>

Router#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#host R1

R1(config)#no ip domain-lo

R1(config)#int s 0/0

R1(config-if)#ip add 172.18.0.1 255.255.0.0

R1(config-if)#cl ra 64000

R1(config-if)#no shut

R1(config-if)#int s 0/1

R1(config-if)#ip add 172.16.0.1 255.255.0.0

R1(config-if)#cl ra 64000

R1(config-if)#no shut

R1(config-if)#exit

R1(config)#enable secret cisco

R1(config)#lin con 0

R1(config-line)#password cisco

R1(config-line)#login

R1(config-line)#logg sy

R1(config-line)#exec-t 0 0

R1(config-line)#exit

R1(config)#lin vty 0 4

R1(config-line)#pas

R1(config-line)#password cisco

R1(config-line)#login

R1(config-line)#exit

R1(config)#service password-encryption

R2配置åQ?/span>

Router>

Router>en

Router#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#no ip domain-lo

Router(config)#lin con 0

Router(config-line)#exec-t 0 0

Router(config-line)#logg sy

Router(config-line)#pas cisco

Router(config-line)#lin vty 0 4

Router(config-line)#pas cisco

Router(config-line)#login

Router(config-line)#exit

Router(config)#enable se cisco

Router(config)#ser pas

Router(config)#int s 0/0

Router(config-if)#ip add 172.18.0.2 255.255.0.0

Router(config-if)#no shut

%LINK-5-CHANGED: Interface Serial0/0, changed state to up

Router(config-if)#

Router(config-if)#

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

i

Router(config-if)#int s 0/1

Router(config-if)#ip add 172.17.0.1 255.255.0.0

Router(config-if)#cl ra 64000

Router(config-if)#no shut

%LINK-5-CHANGED: Interface Serial0/1, changed state to down

Router(config-if)#int f 0/0

Router(config-if)#ip add 10.13.0.1 255.0.0.0

Router(config-if)#no shut

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

Router(config-if)#

Router(config-if)#host R2

R2(config)#

R3配置

Router>en

Router#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#no ip domain-lo

Router(config)#host R3

R3(config)#enable se cisco

R3(config)#lin con 0

R3(config-line)#pas cisco

R3(config-line)#login

R3(config-line)#exec-t 0 0

R3(config-line)#logg sy

R3(config-line)#lin vty 0 4

R3(config-line)#pas cisco

R3(config-line)#login

R3(config-line)#exit

R3(config)#ser pas

R3(config)#int s 0/0

R3(config-if)#ip add 172.17.0.2 255.255.0.0

R3(config-if)#no shut

%LINK-5-CHANGED: Interface Serial0/0, changed state to up

R3(config-if)#

R3(config-if)#int s 0/1

R3(config-if)#ip add 172.16.

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

R3(config-if)#ip add 172.16.0.2 255.255.0.0

R3(config-if)#no shut

R3(config-if)#

%LINK-5-CHANGED: Interface Serial0/1, changed state to up

R3(config-if)#int f 0/0

R3(config-if)#ip add 1

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to up

R3(config-if)#ip add 192.168.1.1 255.255.255.0

R3(config-if)#no shut

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

¾l“æžœåQ?/span>

 

 

 



]]>
子网划分讲解及练习(一åQ?/title><link>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/20/388175.html</link><dc:creator>数据库时é—?/dc:creator><author>数据库时é—?/author><pubDate>Thu, 20 Sep 2012 05:01:00 GMT</pubDate><guid>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/20/388175.html</guid><wfw:comment>http://www.aygfsteel.com/IPV6-1207/comments/388175.html</wfw:comment><comments>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/20/388175.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/IPV6-1207/comments/commentRss/388175.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/IPV6-1207/services/trackbacks/388175.html</trackback:ping><description><![CDATA[<div id="wmqeeuq" class="PublishedByWebStory-[6]1_A6BF70C1B9444D8194CEA876084C0A5E_2E2B7ECA6D384AEB987CCC601658526D"><p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">局域网˜qžæŽ¥</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">路由器:åQˆå®ƒæ˜¯ä¸€å°å·¥ä¸šè®¡½Ž—机åQ?/span> </strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">路由有以下组成:</span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">CPU</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Motherboard</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQˆä¸»æ¿ï¼‰</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">RAM</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQˆå†…存)</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">ROM</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">NVRAM</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQˆéžæ˜“失性存储)</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">FLASH</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQ?/span><span lang="EN-US" xml:lang="EN-US">IOS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">在这里存放)</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">路由器接口:</span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Console</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">接口</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Network</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">接口</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">以下是èµ\ç”Þp¡¨åQ?/span></strong><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQˆèµ\由器是由路由表è{发数据包åQ?/span></p> <p class="MsoNormal"><span style="COLOR: red; mso-no-proof: yes" lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/3DB2BACF544CF90AC19930D50D71E679E10CF837.jpg" width="554" height="137" v:shapes="囄¡‰‡_x0020_1"/></span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">【第一条,â€?/span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">D</span><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">”是从什么地方学来的åQŒâ€?/span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">192.168.1.0/24</span><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">”是目的¾|‘段åQŒâ€?/span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">[90/25789217]</span><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">â€?/span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">90</span><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">是管理距¼›»ï¼ˆå¯ä¿¡åº¦ï¼‰åQ?/span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">25789217</span><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">是度量å€û|¼ˆåˆ°ç›®çš„的距离åQ‰ï¼Œâ€?/span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">vi a 10.1.1.1</span><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">”下一跛_œ°å€ã€‚ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">路由表包含一下内容:</span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">直连路由åQˆç›´æŽ¥å’Œè·¯ç”±å™¨ç›´˜qžçš„åQ?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">静态èµ\由(½Ž¡ç†å‘˜æ‰‹åŠ¨æ·»åŠ çš„é™æ€ï¼‰</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">动态èµ\由(通过路由协议学到的)</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">¾~ºçœè·¯ç”±åQˆå°±æ˜¯é»˜è®¤èµ\由)</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">动态èµ\由协议分</span><span lang="EN-US" xml:lang="EN-US">2</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">大类åQ?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">1</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQ‰è·¼›ÈŸ¢é‡åž‹è·¯ç”±åè®®åQ?/span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">距离是远˜q‘,矢量代表方向ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">特点每一台èµ\由器把自己所知道的信息发送给é‚Õd±…ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">2</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQ‰é“¾è·¯çŠ¶æ€åž‹è·¯ç”±åè®®</span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">每一个链路状态èµ\由器都会产生一个链路状态通告åQŒç„¶åŽè¿›è¡Œæ³›‹zªï¼Œæœ€åŽå¾—知到达整个网¾lœèµ\径,在运è¡?/span><span lang="EN-US" xml:lang="EN-US">SPF</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">½Ž—法选出到达每个目的的最优èµ\径ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">十进制è{换二˜q›åˆ¶¾lƒä¹ åQ?/span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">241</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">转换二进制数ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">½{”:</span><span lang="EN-US" xml:lang="EN-US">11110001</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">175</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">转换二进制数</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">½{”:</span><span lang="EN-US" xml:lang="EN-US">10101111</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">01100110</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">转换十进åˆ?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">½{”:</span><span lang="EN-US" xml:lang="EN-US">102</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网划分åQ?/span></p> <p class="MsoNormal"><span style="mso-no-proof: yes" lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/63A13E6E6250C4513EE7FAEC143543B41FCD525D.jpg" width="361" height="284" v:shapes="囄¡‰‡_x0020_4"/></span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网划分¾lƒä¹ åQ?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">要求åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.0.0/16</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQ?/span><span lang="EN-US" xml:lang="EN-US">10</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">个子¾|‘:</span></strong></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.0.0/20<span style="mso-spacerun: yes">     </span></span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.0.1~172.16.15.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.15.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.0.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.16.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.16.1~172.16.31.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.31.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.16.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.32.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.32.1~172.16.47.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.47.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.32.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.48.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.48.1~172.16.63.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.63.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.48.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.17.64.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.64.1~172.16.79.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.79.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.64.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.80.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.80.1~172.16.95.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.95.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.80.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.96.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.96.1~172.16.111.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.111.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.96.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.112.0/20</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.112.1~172.16.127.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.127.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.112.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.128.0/20</span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.128.1~172.16.143.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.143.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.128.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">172.16.144.0/20</span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.144.1~172.16.159.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">172.16.159.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">172.16.144.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.240.0</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">以下为预留:</span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">172.16.160.0/20</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">172.16.176.0/20</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">172.16.192.0/20</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">172.16.208.0/20</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">172.16.224.0/20</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">172.16.240.0/20</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"> </span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">192.168.1.0/24</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">åQšè¦æ±‚划åˆ?/span><span lang="EN-US" xml:lang="EN-US">5</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">个子¾|‘:</span></strong></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">192.168.1.0/27</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.1~192.168.1.30</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.31</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">192.168.1.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.255.224</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">192.168.1.32/27</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.33~192.168.1.62</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.63</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">192.168.1.32</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.255.224</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">192.168.1.64/27</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.65~192.168.1.94</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.95</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">192.168.1.64</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.255.224</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">192.168.1.96/27</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.97~192.168.1.126</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.127</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">192.168.1.96</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.255.224</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">192.168.1.128/27</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.129~192.168.1.158</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">192.168.1.159</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">192.168.1.128</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.255.224<br/></span><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">以下为预留:</span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">192.168.1.160/27</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">192.168.1.192/27</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">192.168.1.224/27</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">10.0.0</span></strong><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">.0/8</span></strong> <strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">要求划分</span><span lang="EN-US" xml:lang="EN-US">2000</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">个子¾|‘,只需写出å‰?/span><span lang="EN-US" xml:lang="EN-US">5</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">个子¾|‘:</span></strong></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">10.0.0</span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">.0/19</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span> <span lang="EN-US" xml:lang="EN-US">10.0.0.1~10.0.31.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">10.0.31</span><span lang="EN-US" xml:lang="EN-US">.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">10.0.0</span><span lang="EN-US" xml:lang="EN-US">.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.224.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">10.0.32</span><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">.0/19</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span> <span lang="EN-US" xml:lang="EN-US">10.0.32.1~10.0.63.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">10.0.63.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">10.0.32</span><span lang="EN-US" xml:lang="EN-US">.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.224.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">10.0.64.0/19</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span> <span lang="EN-US" xml:lang="EN-US">10.0.64.1~10.0.97.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">10.0.97.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">10.0.64.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.224.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">10.0.96.0/19</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span> <span lang="EN-US" xml:lang="EN-US">10.0.96.1~10.0.127.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">10.0.127.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">10.0.96.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.224.0</span></p> <p class="MsoNormal"><span style="COLOR: red" lang="EN-US" xml:lang="EN-US">10.0.128.0/19</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">范围åQ?/span> <span lang="EN-US" xml:lang="EN-US">10.0.128.1~10.0.159.254</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">10.0.159.255</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">å­ç½‘åøP¼š</span><span lang="EN-US" xml:lang="EN-US">10.0.128.0</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">子网掩码åQ?/span><span lang="EN-US" xml:lang="EN-US">255.255.224.0</span></p></div><img src ="http://www.aygfsteel.com/IPV6-1207/aggbug/388175.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/IPV6-1207/" target="_blank">数据库时é—?/a> 2012-09-20 13:01 <a href="http://www.aygfsteel.com/IPV6-1207/archive/2012/09/20/388175.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>思科LABåQˆäºŒåQ?/title><link>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/17/387877.html</link><dc:creator>数据库时é—?/dc:creator><author>数据库时é—?/author><pubDate>Mon, 17 Sep 2012 03:27:00 GMT</pubDate><guid>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/17/387877.html</guid><wfw:comment>http://www.aygfsteel.com/IPV6-1207/comments/387877.html</wfw:comment><comments>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/17/387877.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/IPV6-1207/comments/commentRss/387877.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/IPV6-1207/services/trackbacks/387877.html</trackback:ping><description><![CDATA[<div id="wmqeeuq" class="PublishedByWebStory-[6]1_72B0A9B0B1FF4982B66057FCE0C45AE6_5C754FF1F07F447E910F336D31458E7D"><p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线局域网åQ?/span><span lang="EN-US" xml:lang="EN-US">WLAN</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span> </strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">使用无线ž®„频信号、蝲波监听多路访é—?/span><span lang="EN-US" xml:lang="EN-US">/</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">冲突避免、半双工ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线</span><span lang="EN-US" xml:lang="EN-US">AP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相当于以太网çš?/span><span lang="EN-US" xml:lang="EN-US">HUB</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有些频段是受限的ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线信号遇到的问题:</span></strong></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">反射</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">散射</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">信号吸收åQˆæ¯”如说½I¿å¢™åQ?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线标准</span></strong></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l1 level1 lfo2" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">ITU-R</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l1 level1 lfo2" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">IEEE</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l1 level1 lfo2" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Wi-Fi</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">IEEE 802.11</span></strong> <strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">标准</span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/6C7E735D143DE0CA76547E8B5C0E359AACF299D5.jpg" width="553" height="358" v:shapes="_x0000_i1025"/></span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">WLAN</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">安全åQ?/span></strong><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆç½‘¾lœå®‰å…¨çš„</span><span lang="EN-US" xml:lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">要素</span><span lang="EN-US" xml:lang="EN-US"><span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">数据保密性、数据完整性、数据不可否认性)</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/A1535A2C49E52A1F2354728BE68EA08CC3F14214.jpg" width="553" height="364" v:shapes="_x0000_i1026"/></span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">WLAN</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">部çÖv</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">IBSS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆç”µè„‘到电脑åQ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">BSS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span><span lang="EN-US" xml:lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">ä¸?/span><span lang="EN-US" xml:lang="EN-US">AP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">带多个电脑)</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">ESS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆå¤šä¸?/span><span lang="EN-US" xml:lang="EN-US">AP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">带多个电脑)</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">实验åQ?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">TOP</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/A6C490D431D75A9F57586C130E349FA5725C549A.jpg" width="399" height="304" v:shapes="_x0000_i1027"/></span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">交换机的配置åQ?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">Switch>en</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">Switch#conf t</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">Enter configuration commands, one per line.<span style="mso-spacerun: yes"> </span> End with CNTL/Z.</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">Switch(config)#host CCNA</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config)#lin con 0</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-line)#pas cisco</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-line)#login</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-line)#exit</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config)#lin vty 0 4</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-line)#pas cisco</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-line)#login</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-line)#exit</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config)#int vlan 1</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-if)#ip add 218.195.10.1 255.255.255.0</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-if)#no shut</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">%LINK-5-CHANGED: Interface Vlan1, changed state to up</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="BACKGROUND: teal; COLOR: white; mso-highlight: teal" lang="EN-US" xml:lang="EN-US">CCNA(config-if)#description Internet</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线路由器配¾|®ï¼š</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/15932A8C6FC9A91A18C5C2BACBFF34F13DC8A619.jpg" width="554" height="572" v:shapes="_x0000_i1028"/></span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US"> </span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/60D1EE9BF681B2C7F425F9ACB4E566E36482FEDD.jpg" width="553" height="425" v:shapes="_x0000_i1029"/></span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/F758C95449588AF8D38C3AB697249FAC963321F8.jpg" width="553" height="334" v:shapes="_x0000_i1030"/></span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">¾l“æžœåQ?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/7D78DC6100766B72ED0F960ABDE12785D4584D36.jpg" width="553" height="438" v:shapes="_x0000_i1031"/></span></strong></p></div><img src ="http://www.aygfsteel.com/IPV6-1207/aggbug/387877.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/IPV6-1207/" target="_blank">数据库时é—?/a> 2012-09-17 11:27 <a href="http://www.aygfsteel.com/IPV6-1207/archive/2012/09/17/387877.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>CCNA实验åQˆä¸€åQ?/title><link>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/11/387457.html</link><dc:creator>数据库时é—?/dc:creator><author>数据库时é—?/author><pubDate>Tue, 11 Sep 2012 05:51:00 GMT</pubDate><guid>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/11/387457.html</guid><wfw:comment>http://www.aygfsteel.com/IPV6-1207/comments/387457.html</wfw:comment><comments>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/11/387457.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/IPV6-1207/comments/commentRss/387457.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/IPV6-1207/services/trackbacks/387457.html</trackback:ping><description><![CDATA[<div id="wmqeeuq" class="PublishedByWebStory-[6]1_A8A7093AF56445D0869995BDD7010A28_581ACC718D324037B2D5A7E0A138088B"><p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线局域网åQ?/span><span lang="EN-US" xml:lang="EN-US">WLAN</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ‰å›ž™å?/span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">使用无线ž®„频信号、蝲波监听多路访é—?/span><span lang="EN-US" xml:lang="EN-US">/</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">冲突避免、半双工ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线</span><span lang="EN-US" xml:lang="EN-US">AP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相当于以太网çš?/span><span lang="EN-US" xml:lang="EN-US">HUB</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有些频段是受限的ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线信号遇到的问题:</span> </strong></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">反射</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">散射</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">信号吸收åQˆæ¯”如说½I¿å¢™åQ?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无线标准</span></strong></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l1 level1 lfo2" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">ITU-R</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l1 level1 lfo2" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">IEEE</span></p> <p style="TEXT-INDENT: -21pt; MARGIN-LEFT: 21pt; mso-list: l1 level1 lfo2" class="MsoNormal"><span style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">l<span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Wi-Fi</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">IEEE 802.11</span></strong> <strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">标准</span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/6C7E735D143DE0CA76547E8B5C0E359AACF299D5.jpg" width="553" height="358" v:shapes="_x0000_i1025"/></span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">WLAN</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">安全åQ?/span></strong><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆç½‘¾lœå®‰å…¨çš„</span><span lang="EN-US" xml:lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">要素</span><span lang="EN-US" xml:lang="EN-US"><span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">数据保密性、数据完整性、数据不可否认性)</span></p> <p> </p></div><img src ="http://www.aygfsteel.com/IPV6-1207/aggbug/387457.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/IPV6-1207/" target="_blank">数据库时é—?/a> 2012-09-11 13:51 <a href="http://www.aygfsteel.com/IPV6-1207/archive/2012/09/11/387457.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>CCNA内容æ€È»“åQˆäºŒåQ?/title><link>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/03/386861.html</link><dc:creator>数据库时é—?/dc:creator><author>数据库时é—?/author><pubDate>Mon, 03 Sep 2012 05:10:00 GMT</pubDate><guid>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/03/386861.html</guid><wfw:comment>http://www.aygfsteel.com/IPV6-1207/comments/386861.html</wfw:comment><comments>http://www.aygfsteel.com/IPV6-1207/archive/2012/09/03/386861.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/IPV6-1207/comments/commentRss/386861.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/IPV6-1207/services/trackbacks/386861.html</trackback:ping><description><![CDATA[<div id="wmqeeuq" class="PublishedByWebStory-[6]1_64DC34176CBE42CE9255B0C358EC694C_CD0A546F9AE649DC8BE452004D4EE89D"><p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Ifconfig<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">查看本机</span><span lang="EN-US" xml:lang="EN-US">IP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址、子¾|‘掩码ã€?/span><span lang="EN-US" xml:lang="EN-US">DNS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">å’?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址½{‰ç­‰â€¦â€?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Ping<span style="mso-spacerun: yes">    </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">‹¹‹è¯•到对æ–ÒŽ˜¯å¦å¯è¾¾ï¼Œä½¿ç”¨</span><span lang="EN-US" xml:lang="EN-US">ICMP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">协议åQ?/span><span lang="EN-US" xml:lang="EN-US">ICMP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">æœ?/span><span lang="EN-US" xml:lang="EN-US">Echo</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span><span lang="EN-US" xml:lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ‰è¯·æ±‚ã€?/span><span lang="EN-US" xml:lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ‰ç­”应ã€?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">ARP<span style="mso-spacerun: yes">    </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可以查看本地ä¸ÀLœºçš?/span><span lang="EN-US" xml:lang="EN-US">ARP</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">列表</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Tracert<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可以跟踪到达目的¾|‘络都经˜q‡ä»€ä¹ˆåœ°æ–V€?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Nslookup DNS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解析</span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以太¾|?/span> </strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">LAN</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span><span lang="EN-US" xml:lang="EN-US">802.3</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">MAC<span style="mso-spacerun: yes"> </span></span></strong> <strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">物理å¯Õd€</span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">LLC<span style="mso-spacerun: yes"> </span> 3</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层到</span><span lang="EN-US" xml:lang="EN-US">2</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层映ž®„å…³¾p?/span></strong></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">CSMA/CD</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆè²æ³¢ä¾¦å¬å¤šè·¯è®¿é—?/span><span lang="EN-US" xml:lang="EN-US">/</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">冲突‹‚€‹¹‹ï¼‰½{?/span><span lang="EN-US" xml:lang="EN-US">15</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">‹Æ?/span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发送数据包之前先监å?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有数据就½{‰å¾…åQˆæœ€å¤šç­‰</span><span lang="EN-US" xml:lang="EN-US">15</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">‹Æ¡ï¼‰</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">没有数据ž®×ƒ¼ è¾?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以太¾|‘å“á</span></strong></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">1åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Preamble</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">前导½W¦ï¼ˆè¯´æ˜Žå¸§å¼€å§‹ï¼‰</span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">2åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">SOF</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">分界½W¦ï¼ˆæ­£å¼å¼€å§‹ï¼‰</span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">3åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Destinayion Address</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">目的地址åQ?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">4åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Source Address</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">源地址åQ?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">5åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Length</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">长度</span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">6åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">802.2 Header and Data</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆæ•°æ®ï¼‰</span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">7åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">FCS</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span><span lang="EN-US" xml:lang="EN-US">CRC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">冗余校验åQ?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以太¾|‘çš„</span><span lang="EN-US" xml:lang="EN-US">3</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">¿Ué€šä¿¡åQ?/span></strong></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l4 level1 lfo2; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">1åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单播åQ?/span><span lang="EN-US" xml:lang="EN-US">Unicast</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l4 level1 lfo2; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">2åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">òq¿æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">Broadcast</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l4 level1 lfo2; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">3åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">¾l„æ’­åQ?/span><span lang="EN-US" xml:lang="EN-US">Multicast</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址格式åQ?/span><span lang="EN-US" xml:lang="EN-US">[BIA--</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">烧录˜q›åŽ»çš„åœ°å€</span><span lang="EN-US" xml:lang="EN-US">]</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">æœ?/span><span lang="EN-US" xml:lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个部分组æˆ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l0 level1 lfo3; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">1åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">OUI</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">厂商代码</span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l0 level1 lfo3; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">2åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Vendor Assigned</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQˆä¾›åº”商分配åQ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/116173F7AC463C74DF7079890E2B7D94C94C9288.jpg" width="553" height="293" v:shapes="_x0000_i1025"/></span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Comparing Ethernet Media Requirements</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/76888BC0DEC28CB8AA7F67DA4FB6C67036637A5F.jpg" width="553" height="229" v:shapes="_x0000_i1026"/></span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">BASE</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">代表基带</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">T<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">代表电口åQˆåŒ¾lžçº¿åQ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">G<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">代表光纤</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Rx<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">æ”¶æ•°æ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Tx<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发数æ?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">双绞¾U¿è¿žæŽ¥ç±»åˆ«ï¼š</span></strong></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l2 level1 lfo4; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">1åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Straight-Through</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">直连¾U¿ï¼ˆ</span> <span lang="EN-US" xml:lang="EN-US">568A</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span><span lang="EN-US" xml:lang="EN-US">568B</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l2 level1 lfo4; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">2åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span lang="EN-US" xml:lang="EN-US">Crossover</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">交叉¾U¿ï¼ˆ</span><span lang="EN-US" xml:lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">头是</span><span lang="EN-US" xml:lang="EN-US">568A</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一头是</span><span lang="EN-US" xml:lang="EN-US">568B</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l2 level1 lfo4; tab-stops: list 18.0pt" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">3åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">全反¾U?/span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用与</span><span lang="EN-US" xml:lang="EN-US">console</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">配置讑֤‡ç”¨ã€?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">å’?/span><span lang="EN-US" xml:lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">¾cȝº¿çš„ä‹É用图åQ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"><img src="http://www.aygfsteel.com/images/blogjava_net/IPV6-1207/0B7ED590592A48D5B4492D3B6A326F321AFC3A13.jpg" width="553" height="356" v:shapes="_x0000_i1027"/></span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">å…׃ín式局域网</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中ç‘ô器的作用åQšæ˜¯åŽÀLŽ‰å™ªå£°åœ¨æ”¾å¤§ä¿¡å·ä¼ åˆ°æ‰€ä»¥ähã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">集线器是一个冲½HåŸŸåQŒä¸€ä¸ªå¹¿æ’­åŸŸ</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">交换机是多个冲突域,一个或多个òq¿æ’­åŸ?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">路由器是多个冲突域,一个或多个òq¿æ’­åŸ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"> </span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">交换机的</span><span lang="EN-US" xml:lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">¿Uå¤„理方法(</span><span lang="EN-US" xml:lang="EN-US">Switching modes</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Cut-through<span style="mso-spacerun: yes"> </span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">直通è{å?/span><span lang="EN-US" xml:lang="EN-US"><span style="mso-spacerun: yes"> </span></span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Store-and-forward</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">存储转发</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Fragment-free</span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">以上</span><span lang="EN-US" xml:lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">¿Uçš„æŠ˜ä¸­å…ˆå‘一部分如果没错在发其他</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; COLOR: red; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选择一个一交换机最主要的参数是背板带宽ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">交换机的</span><span lang="EN-US" xml:lang="EN-US">MAC</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址学习˜q‡ç¨‹åQ?/span></strong><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">它是æ ÒŽ®æ•°æ®å¸§çš„æºåœ°å€å­¦ä¹ çš„,当它不知é?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址时它会进行数据å“á的泛‹zªï¼ˆ</span><span lang="EN-US" xml:lang="EN-US">Flood</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQ‰ã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">数据包的投递过½E‹ï¼š</span></strong></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">数据包到了交换机åQŒäº¤æ¢å°†æº?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址加到自己çš?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址表ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果交换æœÞZ¸çŸ¥é“数据包的目的</span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址ã€?/span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">交换机将泛洪</span><span lang="EN-US" xml:lang="EN-US">Flood</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">åQŒå¾—到目çš?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址åQŒå°†</span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址加到自己çš?/span><span lang="EN-US" xml:lang="EN-US">MAC</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">地址表中ã€?/span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US"> </span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">Cisco IOS</span></p> <p class="MsoNormal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">讑֤‡å¯åŠ¨ä¸»è¦æœ?/span><span lang="EN-US" xml:lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个步骤:</span></p> <p style="TEXT-INDENT: -18pt; MARGIN-LEFT: 18pt; mso-list: l3 level1 lfo5" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">1åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; 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MARGIN-LEFT: 18pt; mso-list: l3 level1 lfo5" class="MsoNormal"><span style="mso-fareast-font-family: 'Times New Roman'" lang="EN-US" xml:lang="EN-US"><span style="mso-list: Ignore">3åQ?span style="FONT: 7pt 'Times New Roman'"> </span></span></span> <span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">加蝲讑֤‡é…ç½®æ–‡äšgã€?/span></p> <p class="MsoNormal"><strong style="mso-bidi-font-weight: normal"><span lang="EN-US" xml:lang="EN-US">IOS</span></strong><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有几¿Uæ¨¡å¼?/span></strong></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用户™ì”术</span></p> <p class="MsoNormal"><span lang="EN-US" xml:lang="EN-US">#</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; 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l  有哪些对æ‰?/span>

l  å¯Òމ‹æ˜¯è°

l  动机是什么有那些¾cÕdž‹çš„æ”»å‡»è¡Œä¸?/span>

 

OSI参考模型:ž®±æ˜¯è¡Œä¸šæ ‡å‡†

Application    åº”用å±?/span>         ¾|‘络处理到应用程序:¾|‘络上的软äšgã€?/span>

Presentation   è¡¨ç¤ºå±?/span>         æ•°æ®çš„表½Cºï¼šæ‹¿ä»€ä¹ˆè¡¨½Cºæ•°æ®ï¼ŒåР坆

Session       ä¼šè¯å±?/span>         ä¸ÀLœºä¹‹é—´çš„通信åQšé…å?/span>4Lã€?/span>6L层工作,建立会话

Transport     ä¼ è¾“å±?/span>         ç«¯åˆ°ç«¯çš„˜qžæŽ¥åQšæŽ§åˆ¶ä¸»æœÞZ¼šè¯ã€ä¼ é€’主æœÞZ¹‹é—´çš„会话、简历保持拆除连接会话、流量控åˆ?/span>

Network     ¾|‘络å±?/span>          æ•°æ®æŠ•递:怎么把数据传到正¼‹®çš„地方åQŒä¼ åˆ°å“ªã€‚(选èµ\åQ?/span>

Data Link    æ•°æ®é“¾èµ\å±?/span>      ä»‹è´¨è®‰K—®åQšæ€Žä¹ˆæŠŠæ•°æ®æ”¾åˆ°ç‰©ç†å±‚ç”Ÿä¼ è¾?/span>

Physical      ç‰©ç†å±?/span>         2˜q›åˆ¶ä¼ è¾“

ž®è£…˜q‡ç¨‹:自上而下ž®è£…åQŒæ¯å±‚都会把上层数据˜q›è¡Œž®è£…也会把下层向上解ž®è£…ã€?/span>

 

点到点的通信

4å±?/span> Segments  数据ŒD?/span>   分段、复ç”?/span>

3å±?/span> Packets   数据åŒ?/span>

2å±?/span>Frames    数据å¸?/span>

åQˆäؓ什么分ŒDµï¼šå·®é”™æ¢å¤ã€å¤šè·¯å¤ç”¨ã€è´Ÿè½½å‡è¡¡ï¼‰

OSIä¸?/span>TCP/IPå¯Òޝ”åQ?/span>

 

TCP/IP Internetå±?/span>

 

IP包承载了我们的数据,Internet Protocol 是工作在¾|‘络层、无˜qžæŽ¥åQˆä¸è€ƒè™‘可靠、)独立处理、层‹Æ¡è¯çš„åœ°å€ã€å°½åŠ›è€ŒäØ“çš„ä¼ è¾“ã€æ²¡æœ‰æ•°æ®æ¢å¤æœºåˆ¶ã€?/span>IP只做åQšå¯»å€å’Œè{å?/span>

IPž®±æ˜¯¾l™è®¾å¤‡ä¸€ä¸ªåœ°å€åQŒè¿™ä¸ªåœ°å€ç”¨äºŽæˆ‘们åŽÀL‰¾ä»–ã€?/span>IP地址æœ?/span>2个部分,1åQ‰ç½‘¾lœä½åQˆä»£è¡¨ä¸€é›†ä½“åQ?/span>2åQ‰ä¸»æœÞZ½åQˆä¸ªäººï¼‰

 

IP数据包的报头部分

 

 

 

IP地址的分¾c»ï¼š

A:8个网¾lœä½åQ?/span> ¾|‘络位十˜q›åˆ¶èŒƒå›´1~126         ä¸ÀLœºæ•ŽÍ¼š16777214     

公网地址åQ?/span>1.0.0.0 To 9.255.255.255  11.0.0.0.0 To 126.255.255.255

¿Uæœ‰åœ°å€åQ?/span>10.0.0.0 To 10.255.255.255

B:16个网¾lœä½åQŒç½‘¾lœä½åè¿›åˆ¶èŒƒå›?/span>128~191       ä¸ÀLœºæ•ŽÍ¼š65534

公网地址åQ?/span>128.0.0.0.0 To 126.255.255.255  172.32.0.0 To 192.255.255.255

¿Uæœ‰åœ°å€åQ?/span>172.16.0.0 To 172.31.255.255

C:24个网¾lœä½åQŒç½‘¾lœä½åè¿›åˆ¶èŒƒå›?/span>192~223       ä¸ÀLœºæ•ŽÍ¼š   254

公网地址åQ?/span>192.0.0.0.0 To 192.167.255.255 192.169.0.0 To 223.255.255.255

¿Uæœ‰åœ°å€åQ?/span>192.168.0.0 To 192.168.255.255

 

òq¿æ’­åœ°å€æœ?/span>2¿U?/span>

1åQ‰ç›´æŽ¥å¹¿æ’?/span>  发给所有äh。(255.255.255.255åQ?/span>

1åQ‰æœ¬åœ°å¹¿æ’?/span>  只能在本地子¾|‘范围内òq¿æ’­åQˆæœ¬¾|‘段的广播地址åQ?/span>

 

DHCP åQ?/span>DHCP是动æ€?/span>IP地址分配åQ?/span>DHCP是以太网技术,只能在以太网上ä‹É用)

DHCP交互˜q‡ç¨‹

Cå?/span>S发送以òq¿æ’­æŸ¥æ‰¾DHCP

S�/span>C我是DHCP�/span>

Cå?/span>S 我要è¯äh±‚地址ã€?/span>

Så?/span>C DHCP˜q›è¡Œ¾l‘定后给一个地址ã€?/span>

S代表Server          C代表客户ç«?/span>

DNSåQˆåŸŸåè§£æžï¼‰ž®±æ˜¯ž®†åå­—è{æ¢äØ“IP地址

 

传输层:分段、复用�/span>

可靠åQšæœ‰˜qžæŽ¥çš„,代表TCPåQˆå¯é è¦˜q”回ACK信息åQŒæ‰å‘下一个信息)速度æ…?/span>

不可靠:无连接的åQŒä»£è¡?/span>UDP  速度å¿?/span>

 

UDP报头

TCP报头

TCP�/span>UDP 各自�/span>0~65535端口

公共端口åQ?/span>0~1023

注册端口åQ?/span>1024~49151

动态端口:49152~65535

 

TCP建立需è¦?/span>3‹Æ¡æ¡æ‰?/span>

TCP是得寸进ž®ºåž‹åè®®  ½H—口大小是逐步攑֤§çš„,当出现问题时才羃ž®ã€?/span>

 

数据包的投递过½E‹ï¼šåQ?/span>2个主æœÞZ¹‹é—ß_¼‰

l  有数据要发é€?/span>

l  建立会话

l  ARP查找目的MAC没有的话ž®±å‘ä¸?/span>

l  ARPè¯äh±‚MAC地址

l  å¯ÒŽ–¹æ”¶åˆ°åŽæŠŠMAC地址æ·ÕdŠ çš?/span>ARP表里

l  å¯ÒŽ–¹å›žå¤ä¸€ä¸?/span>MAC地址

l  收到后添加的ARPè¡?/span>

l  现在发送数æ?/span>



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多èµ\讉K—®¾|‘络中的挑战http://www.aygfsteel.com/IPV6-1207/archive/2012/08/30/386574.html数据库时é—?/dc:creator>数据库时é—?/author>Thu, 30 Aug 2012 03:05:00 GMThttp://www.aygfsteel.com/IPV6-1207/archive/2012/08/30/386574.htmlhttp://www.aygfsteel.com/IPV6-1207/comments/386574.htmlhttp://www.aygfsteel.com/IPV6-1207/archive/2012/08/30/386574.html#Feedback0http://www.aygfsteel.com/IPV6-1207/comments/commentRss/386574.htmlhttp://www.aygfsteel.com/IPV6-1207/services/trackbacks/386574.html阅读全文

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OSPF链èµ\状态更æ–?/title><link>http://www.aygfsteel.com/IPV6-1207/archive/2012/08/29/386504.html</link><dc:creator>数据库时é—?/dc:creator><author>数据库时é—?/author><pubDate>Wed, 29 Aug 2012 03:59:00 GMT</pubDate><guid>http://www.aygfsteel.com/IPV6-1207/archive/2012/08/29/386504.html</guid><wfw:comment>http://www.aygfsteel.com/IPV6-1207/comments/386504.html</wfw:comment><comments>http://www.aygfsteel.com/IPV6-1207/archive/2012/08/29/386504.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/IPV6-1207/comments/commentRss/386504.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/IPV6-1207/services/trackbacks/386504.html</trackback:ping><description><![CDATA[     摘要: 链èµ\状态更æ–?(LSU) 数据包用äº?OSPF 路由更新。一ä¸?LSU 数据包可能包å?1¾cÕdž‹çš„链路状态通告 (LSA)åQŒæœ¯è¯­â€œé“¾è·¯çŠ¶æ€æ›´æ–?(LSU)”和“链路状态通告 (LSA)”之间的差异有时较难分清。有æ—Óž¼Œå®ƒä»¬å¯ä»¥äº’换使用。一ä¸?LSU 包含一个或多个 LSAåQŒè¿™ä¸¤ä¸ªæœ¯è¯­ä¸­çš„ä»ÖM½•一个都可用于表½Cºç”± OSPF 路由器传播的链èµ\状态信息ã€?以下是LASçš?1¿Uç±»åž‹ï¼š OSPF½Ž—法 每台 OS...  <a href='http://www.aygfsteel.com/IPV6-1207/archive/2012/08/29/386504.html'>阅读全文</a><img src ="http://www.aygfsteel.com/IPV6-1207/aggbug/386504.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/IPV6-1207/" target="_blank">数据库时é—?/a> 2012-08-29 11:59 <a href="http://www.aygfsteel.com/IPV6-1207/archive/2012/08/29/386504.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss> <footer> <div class="friendship-link"> <a href="http://www.aygfsteel.com/" title="狠狠久久亚洲欧美专区_中文字幕亚洲综合久久202_国产精品亚洲第五区在线_日本免费网站视频">狠狠久久亚洲欧美专区_中文字幕亚洲综合久久202_国产精品亚洲第五区在线_日本免费网站视频</a> </div> </footer> Ö÷Õ¾Ö©Öë³ØÄ£°å£º <a href="http://" target="_blank">ÔÆ¸¡ÊÐ</a>| <a href="http://" target="_blank">ͨº£ÏØ</a>| <a href="http://" target="_blank">¹ÌÔ­ÊÐ</a>| <a href="http://" target="_blank">ÎÚº£ÊÐ</a>| <a href="http://" target="_blank">Ë«·åÏØ</a>| <a href="http://" target="_blank">ÒåÂíÊÐ</a>| <a href="http://" target="_blank">ÇØ»ÊµºÊÐ</a>| <a href="http://" target="_blank">º£·áÏØ</a>| <a href="http://" target="_blank">²¨ÃÜÏØ</a>| <a href="http://" target="_blank">ÕýÄþÏØ</a>| <a href="http://" target="_blank">Ã÷Ë®ÏØ</a>| <a href="http://" target="_blank">ÌÀÔ­ÏØ</a>| <a href="http://" target="_blank">¼ÎÏéÏØ</a>| <a href="http://" target="_blank">²ÔÉ½ÏØ</a>| <a href="http://" target="_blank">ÓñÉ½ÏØ</a>| <a href="http://" target="_blank">ÁéÊ¯ÏØ</a>| <a href="http://" target="_blank">ÓÀ¼ÃÊÐ</a>| <a href="http://" target="_blank">ÓÜÖÐÏØ</a>| <a href="http://" target="_blank">ÇßÔ´ÏØ</a>| <a href="http://" target="_blank">ÁÙÔóÏØ</a>| <a href="http://" target="_blank">˾·¨</a>| <a href="http://" target="_blank">³¤ÎäÏØ</a>| <a href="http://" target="_blank">¹ðÁÖÊÐ</a>| <a href="http://" target="_blank">ÒÀ°²ÏØ</a>| <a href="http://" target="_blank">±Ï½ÚÊÐ</a>| <a href="http://" target="_blank">ÑĮ̀ÊÐ</a>| <a href="http://" target="_blank">ÉñÄ¾ÏØ</a>| <a href="http://" target="_blank">ÒÊÄÏÏØ</a>| <a href="http://" target="_blank">¼ªÄ¾ÄËÏØ</a>| <a href="http://" target="_blank">ÑŰ²ÊÐ</a>| <a href="http://" target="_blank">Î¢É½ÏØ</a>| <a href="http://" target="_blank">ººÔ´ÏØ</a>| <a href="http://" target="_blank">Á¹É½</a>| <a href="http://" target="_blank">µÆËþÊÐ</a>| <a href="http://" target="_blank">Ö¦½­ÊÐ</a>| <a href="http://" target="_blank">ÀÖÒµÏØ</a>| <a href="http://" target="_blank">ÇÒÄ©ÏØ</a>| <a href="http://" target="_blank">¾¸±ßÏØ</a>| <a href="http://" target="_blank">ÎÚ³ľÆëÊÐ</a>| <a href="http://" target="_blank">ľÀ¼ÏØ</a>| <a href="http://" target="_blank">Îå´óÁ¬³ØÊÐ</a>| <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body>