Command to determine up-link on 6509 switch

[Sumit Sharma]

Hi All, request your help. I was wondering is there a command to determine uplink ports in enterprise network. If i  know the IP we can trace the uplink port however what if no IP address is available or if the uplink is down, incomplete network diagram and have got more than 2 tengig ports.

[Leo Laohoo]

Hi All, request your help. I was wondering is there a command to determine uplink ports in enterprise network. If i  know the IP we can trace the uplink port however what if no IP address is available or if the uplink is down, incomplete network diagram and have got more than 2 tengig ports.

Errrr ... "sh cdp neighbor"?

[Sumit Sharma]

Hi Leo, thanks for your response. unfortunately CDP has not been enabled. Also, I believe if the uplink is down, sh cdp neighbor wont work.

[Carlos Villagran]

Hi!

You can look for Etherchannels, descriptions in show interface description. Uplinks have more baandwidth than downlonk ports so I would look for certain characteristics such as trunk ports, Tengigabit ports and in general the port which is forwarding/receiving lots of traffic compared with other ports.

I know this is not a command itself but I hope it helps you to find the uplinks ports.

Best regards!

JC

[Leo Laohoo]

If the uplink is down then unless someone has kept meticulous documentation (including interface description) there is nothing to be done and nothing can be achieved.