interface down

[Tareq Emad Al Asfoor]

dear all ..  i have router cisco 1006 ... when i no shutdown the interface this appear to me   Router(config)#interface gigabitEthernet 2/1/0 Router(config-if)#no Router(config-if)#no sh Router(config-if)#no shutdown Router(config-if)# *Jan 20 08:50:01.239: %LINK-3-UPDOWN: Interface GigabitEthernet2/1/0, changed state to down *Jan 20 08:50:01.140: %LINK-3-UPDOWN: SIP2/1: Interface GigabitEthernet2/1/0, changed state to down  how can solve that ?????

[vmiller · Accepted solution]

1. check physical connectivity from the router to whatever it is supposed to be attached to.

2. if its a fiber connection, make sure you have transmit and receive lined up correctly.

Its a start.