i used two routers as ebgp peers.And the two router used loopback interface to bulit neighbor adjacency. But the loopback interfaace is not in the same subnet.So i need to use the neighbor ebgp-multihop 2 command to built ebgp adjacency. But the e...

it seems that it's the flash has some problem.Or the memory?rommon 2 > resetSystem Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)Copyright (c) 1999 by cisco Systems, Inc.C3660 processor with 131072 Kbytes of main memoryMain memory is configured...

what is the difference between the SC and MT_RJ optical interface ?which type of interface is better? why?

In rip operation ,according to cisco ios command reference(timers basic command): A route enters into a hold-down state when an update packet is received that indicates the route is unreachable. The route is marked inaccessible and advertised as un...

I have two cat6509 switches report duplicate address problem.S2 is the active router , the interface address of vlan 20 is 42.0.191.92, and the hsrp standby address is 42.0.191.98, the log shows:Dec 8 16:56:18: %STANDBY-3-DUPADDR: Duplicate addres...