Configuring Authentication Authentication verifies users before they are allowed access to the network and network services. The Cisco IOS software implementation of authentication is divided into two main categories: • AAA Authentication M...
Configuring Authentication Authentication verifies users before they are allowed access to the network and network services. The Cisco IOS software implementation of authentication is divided into two main categories: • AAA Authentication M...
Understanding Voice VLAN The voice VLAN feature enables access ports to carry IP voice traffic from an IP phone. The switch can connect to a Cisco 7960 IP Phone and carry IP voice traffic. Because the sound quality of an IP phone call can deteri...
人邮讲的太晦涩,看了CISCO 的文档,大概理解翻译了下,有错的请至正.另外,关于他们之间交换BPDU的过程我还不是十分很了解.望战友帮助讲解.先解释一些名词,不然下面就乱了:1. IST: IST是一个MST区域的生成树,它维护和计算机这个MST 区域内的SPT,MST实例0就是一个特殊的MST实例,这个实例就叫 IST. 也就是说可以把IST看成是每个MST区域的外界表现2.  ...
To determine the best path is the primary function of routing protocols, and this can be aCPU-intensive process. Thus, there is a significant performance increase with the offloadof a portion of this function to switching hardware. This performance i...
Catalyst 3550 Multilayer Switch Software Configuration Guide, 12.1(4)EA1 Index Preface Product Overview Using the Command-Line Interface Getting Started with CMS Assigning the Swi...
Catalyst 6500 Series Cisco IOS Command Reference, 12.1 E show spanning-tree To display information about the spanning tree state, use the show spanning-tree command. show spanning-tree [bridge-group | active | backbonefast | {bridge [id]}| detail | i...
一只总是想死的小兔子,一次一次的自杀。在它每次颇具创意的死法面前,我们看到的是这个社会。尤其是中国版的,更不仅是为了自杀而自杀,而是让我们看到了更多的问题,带给我们更多的思考。漫画的作者是一个叫做右手漫画的家伙,真的很佩服他。不仅画得好,且有一颗善良的心。就像我最喜欢的漫画家——季诺。这是右手漫画的博客:http://blog.sina.com.cn/m/youshou题记:小白兔是不会死的.它只是在考验灵感会不会死.[2006-08-22 22:25 补充如下]看见了就...
没有3层交换机,我就用2台2514+一台1924交换机+我的ADSL 小猫做了实验.环境连接:1924上划分2个VLAN 一个是网段192.168.0.0/24一个是10.0.0.0/24网段,其中192的VLAN 中连接我的笔记本网卡/两台2514路由器的E0口.10网段的VLAN 连接两台2514的E1口和猫的以太口.将笔记本网卡网关先设置为任意一台2514的E0口地址,先让电脑能通过单台路由器正常与外界通信,由于我的猫不支持静态路由设置,导致我在路由器上设置了ip route ...
满分通过,准备了这么久终于考了.不过在欣喜之余还是在论坛上看到的不爽的消息,CCNP 的考试课程真的要换了么?好郁闷的消息啊,如果真的在10月15彻底更换的话,我的所有计划都被打乱了,2个月我要准备3门考试,晕!本想着学习过程最重要,考试只是证明.可这样一来,没有足够的时间去准备....郁闷啊 只希望消息不要是真的....
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r3-2514#show ip bgpBGP table version is 9, local router ID is 3.3.3.3Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failur...
拓扑就是书上的拓扑了.在RID5.5.5.5的路由器上重分发RIP路由信息到OSPF中,5,5,5,5是个ASBR.1.1.1.1和2.2.2.2是ABR连接区域1和0,5.5.5.5路由器接口位于区域0中下面的是P1R3路由器上,在没有被配置为末节区域前的LSA情况:r3-2514#show ip ospf data OSPF Router with I...
拓扑就是书上的拓扑了.在RID5.5.5.5的路由器上重分发RIP路由信息到OSPF中,5,5,5,5是个ASBR.1.1.1.1和2.2.2.2是ABR连接区域1和0,5.5.5.5路由器接口位于区域0中r1-2514#show ip ospf data OSPF Router with ID (1.1.1.1) (Process ID 1) ...
环境:R2 R4 两台路由器,R2的ROUTERID是2.2.2.2 R4的是4.4.4.4 首先让2台路由器启用OSPF并使得2.2.2.2成为DR.然后,重新启动R2,再R4上调试,其间R1 R3路由器未关闭.*Mar 1 00:03:19.047: OSPF: Send hello to 224.0.0.5 area 0 on Serial1 from 10.1.3.4*Mar 1 00:03:19.051: OSPF: Send hello to 224.0....
拓扑图以及实际用路由器名与书上路由器名对应关系,请查看[原创]BSCI第一章实验2之任务2(人邮自学指南BSCI)下面的调试信息是在P1R1 P1R2上启用路由汇总后,并关闭P1R1的S1接口后,在R5上看到的,注意看由于配置了汇总路由,R5对查询应答很快,它不会再向外发出继续查询的信息,直接用某某具体的子网不在我的路由表里 not in IP routing table 来应答.这样就避免了过渡的查询数据占用带宽.r5-2501#*Mar 1 02:59:50.011: IP-...
任务是删除上一次配置 没什么可说了,拓扑图以及实际用路由器名与书上路由器名对应关系,请查看未关闭S1前 R1r1-2514#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area  ...
1对汇总情况的支持 协议名 是否在分类网络边界自动汇总 能否关闭自动汇总 是否支持分类网络边界之外汇总 RIPV1 y n n RIPV2 ...
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