Will Traceroute-MAC or similar Command works on Nexus Devices

[Chiranjit Dey]

Just like traceroute mac  works on IOS device , will same feature works on NX-os as well. I have 7k seats on my Core followed by 5k as access/Distribution from there few 3750/2960 Connected   down the line, problem is every time when I need to trace a mac address I have to check the mac address table  on core , find out the egress port ,login to the down link 5k then login  to that switch check the mac address table again , follow this process until got the actual destination. So wanted to know if we have any commands similar like traceroute mac on Nxos

[ADP_89]

Hello,

Unfortunately mac traceroute was never implemented in NX-OS software. If you need to trace a mac-address you will have to do it manually following these steps:

- show mac-address table address xx:xx:xx:xx:xx:xx (this eventually will return a Port-Channel or a single Eth interface)

- find out where that interface/Port-Channel is going via CDP/LLDP. If you have a Port-Channel you will need to understand which physical interface are the one who make it up using the command show port-channel summary interface PoXXX

- once you get the cdp neighbor you can jump on that box and recursively start the whole operation.

It is a little bit a boring job but it's the only way to do it using classical ethernet configurations.

HTH,

ADP

[Chiranjit Dey]

Yes, We basically follow the steps what you have described and completely agree this is a boring and sometime bit hectic as well and that's why wanted to know  if we have any procedure or commands that can shorten the process .