8.2-HSRP 第二次：重新搭建拓扑 //IOU

8.2-HSRP 第二次：重新搭建拓扑 //IOU

三、命令部署：问题：部署standby后虽然有效果了，但是show standby brief 仍然有问题：所以用GNS3搭一次拓扑四、验证：1、未部署MST之前，PC1、PC2可以Ping通各自网关：192.168.10.254、192.168.20.254；但是比如：PC1持续Ping 4.4.4.4，如果IOU1的e0/0shutdown，Ping不通了。PC-1> ip dhcpDDORA IP 192.168.10.1/24 GW 192.168.10.254PC-1> ping 192.168.10.25484 bytes from 192.168.10.254 icmp_seq=1 ttl=255 time=0.397 ms84 bytes from 192.168.10.254 icmp_seq=2 ttl=255 time=0.372 ms84 bytes from 192.168.10.254 icmp_seq=3 ttl=255 time=1.040 ms84 bytes from 192.168.10.254 icmp_seq=4 ttl=255 time=1.100 ms84 bytes from 192.168.10.254 icmp_seq=5 ttl=255 time=0.479 ms

PC-1> ping 1.1.1.184 bytes from 1.1.1.1 icmp_seq=1 ttl=255 time=0.507 ms84 bytes from 1.1.1.1 icmp_seq=2 ttl=255 time=0.361 ms84 bytes from 1.1.1.1 icmp_seq=3 ttl=255 time=1.248 ms84 bytes from 1.1.1.1 icmp_seq=4 ttl=255 time=0.471 ms84 bytes from 1.1.1.1 icmp_seq=5 ttl=255 time=0.405 ms

PC-1> ping 4.4.4.484 bytes from 4.4.4.4 icmp_seq=1 ttl=254 time=1.007 ms84 bytes from 4.4.4.4 icmp_seq=2 ttl=254 time=0.571 ms84 bytes from 4.4.4.4 icmp_seq=3 ttl=254 time=0.557 ms84 bytes from 4.4.4.4 icmp_seq=4 ttl=254 time=0.745 ms84 bytes from 4.4.4.4 icmp_seq=5 ttl=254 time=0.467 ms

PC-2> ip dhcpDDORA IP 192.168.20.1/24 GW 192.168.20.254PC-2> ping 192.168.20.25484 bytes from 192.168.20.254 icmp_seq=1 ttl=255 time=0.187 ms84 bytes from 192.168.20.254 icmp_seq=2 ttl=255 time=1.181 ms84 bytes from 192.168.20.254 icmp_seq=3 ttl=255 time=0.653 ms84 bytes from 192.168.20.254 icmp_seq=4 ttl=255 time=0.524 ms84 bytes from 192.168.20.254 icmp_seq=5 ttl=255 time=1.036 ms

PC-2> ping 2.2.2.284 bytes from 2.2.2.2 icmp_seq=1 ttl=255 time=0.216 ms84 bytes from 2.2.2.2 icmp_seq=2 ttl=255 time=0.360 ms84 bytes from 2.2.2.2 icmp_seq=3 ttl=255 time=0.480 ms84 bytes from 2.2.2.2 icmp_seq=4 ttl=255 time=1.399 ms84 bytes from 2.2.2.2 icmp_seq=5 ttl=255 time=0.315 ms

PC-2> ping 4.4.4.484 bytes from 4.4.4.4 icmp_seq=1 ttl=254 time=1.151 ms84 bytes from 4.4.4.4 icmp_seq=2 ttl=254 time=0.481 ms84 bytes from 4.4.4.4 icmp_seq=3 ttl=254 time=0.767 ms84 bytes from 4.4.4.4 icmp_seq=4 ttl=254 time=1.684 ms84 bytes from 4.4.4.4 icmp_seq=5 ttl=254 time=1.275 ms2、IOU1、IOU2、IOU3同事部署MST后，IOU1为mst 1的主根，mst 2的备根；IOU2为mst 2的主根，mst 1的备根，再重复上述实验：PC1持续Ping 4.4.4.4，如果IOU1的e0/0shutdown，Ping仍然可以通，但是走的是IOU2的路径。同理在PC2和IOU2上做此实验也可以。

3、debug ip packetIOU1#debug ip packetMay 20 04:44:21.956: IP: s=192.168.10.253 (local), d=224.0.0.5 (Vlan10), len 80, sending broad/multicastMay 20 04:44:21.956: IP: s=192.168.10.253 (local), d=224.0.0.5 (Vlan10), len 80, sending full packetMay 20 04:44:22.514: IP: s=192.168.10.252 (Vlan10), d=224.0.0.5, len 120, rcvd 0May 20 04:44:22.514: IP: s=192.168.10.252 (Vlan10), d=224.0.0.5, len 120, input feature, packet consumed, MCI Check(82), rtype 0, forus FALSE, sendself FALSE, mtu 0, fwdchk FALSE May 20 04:44:22.514: IP: s=14.1.1.1 (local), d=224.0.0.5 (Vlan14), len 120, sending broad/multicastMay 20 04:44:22.514: IP: s=14.1.1.1 (local), d=224.0.0.5 (Vlan14), len 120, sending full packetMay 20 04:44:22.524: IP: s=14.1.1.4 (Vlan14), d=224.0.0.5, len 180, rcvd 0May 20 04:44:22.524: IP: s=14.1.1.4 (Vlan14), d=224.0.0.5, len 180, input feature, packet consumed, MCI Check

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