有意思的是,在CCIE的lab考试中,可以通过一些debug和show的命令让你很快地通过CCIE的lab考试,下面是CCIE lab 考试中常用的show命令。  Catalyst交换机  show vlan brief  show interface trunk  show interface switchport  show vtp status  show spanning-tree vlan  Frame帧中继网络  show frame map  show frame pvc  OSPF路由协议  show ip route ospf  show ip ospf neighbor  show ip ospf  show ip ospf interface  EIGRP路由协议  show ip eigrp neighbor  show ip eigrp topology  show ip route eigrp  show ip protocol  RIP version 2  show ip route rip  clear ip route *  debug ip rip  BGP  show ip bgp summary  show ip bgp  show ip bgp neighbor x.x.x.x advertised-routes  show ip bgp regex  show ip bgp rib-failure  show ip route bgp  IP Multicast  show ip pim neighbor  debug ip mpacket  debug ip pim  show ip pim neighbor  show ip pim interface  show ip pim rp map  show ip mroute count  show ip mroute  show ip route  好好利用这些debug和show的命令,对在CCIE lab考试时候的排错有很大的帮助。