System mac address of ASR

[huyupqhjqg]

How can I find the system/CPU MAC address of a Cisco ASR device? On a Catalyst switch, I can type

show mac address-table | include CPU

to find the system mac, but there's no mac address table on an ASR.

Thanks

[Flavio Miranda]

Hi

Try 

show bridge-domain

[huyupqhjqg]

That did not seem to work for me unfortunately, it does not recognize that command. It is an ASR9k if that helps at all.

[TotallyTodd]

Totally

show version

command may work 

[TotallyTodd]

totally interested to see the output of

show version 

on the ASR if you don't mind! totally hope it works! 

[TotallyTodd]

Also,

show version 

may totally show you the base Mac address on the switch for the device itself,  as opposed to the interface Mac address totally! 

[MHM Cisco World]

I think there is no mac address for cpu in asr9k or any router.

The cpu mac in l2sw is use as source of some specific control frame like

stp dtp cdp lldp

In l3 device the mac address of interface is used control frame like

 ospf bgp eigrp arp...etc.

Anyway I will make double check this point.

[huyupqhjqg]

If that's the case, do you know the command to get the mac address of an interface?

[MHM Cisco World · Accepted solution]

Show interface x/x

This will give you mac of each interfere