I have 2 of 2600 series router connect to each other using lease line, CDP enabled. But I can't see CDP neighbor. The line protocal is still down, too. The provider confirm the line is OK. Can somebody tell me if we can know something from 'show cont...

a router connected to a core using 'switch port access vlan 2' command on a switch port 2/48 of the core.the only routing is OSPF.---------------------------now the loopback cannot be pingbecause the vlan 2 is downi try to 'shut' & 'no shut' the vlan...

I've got 3 routers connect together in triangle. A / \B _ CThe router A connect to B using point to point connection but connect to C by VLAN let's say VLAN 2.The router B connect to C using point to point connection.The router A has many VLAN, they...

Hi,I've got a problem to link up 2 giga etherchannel between 3508 and 3550.When we connect the 2nd channel all the network down.### 3508 config. ###3508#sh run int g0/7Building configuration...Current configuration:!interface GigabitEthernet0/7 descr...

hi ~i have 1 of WS-X6K-S2-MSFC2.i want to use WS-C6509 and WS-X6182-2PA module.my problem now is what OS that i able to use ?can i use CatOS on 6509 switch ? so the router will become 1 switch function and 1 router function.or else i must use native ...