Quick Cisco command help (finding which port a MAC address is on)

bledd · 8 Mar 2019 at 13:22

Hi,

On current switches, we use..

Code:

show swi fdb address=AA:BB:CC:DD:EE:FF

After a quick command to be used on a Cisco switch for hunting down which port a device is on.

uvarvu · 8 Mar 2019 at 13:26

Can't you just type in show mac address-table to get what you want?

I love playing around with Packet Tracer!

bledd · 8 Mar 2019 at 14:04

Hundreds of devices, we use this to hunt down devices from switch to switch.

GhostlyPea · 8 Mar 2019 at 15:16

'show mac address-table address <mac>' or pipe out 'show mac address-table | i <all or part of mac>'

- GP

bledd · 11 Mar 2019 at 21:53

Thanks for that

Needed that before deploying, I'll work out all other commands as we go.

Caged · 11 Mar 2019 at 22:23

Just press ? a lot and you'll pick it up. The syntax is pretty horrific compared to stuff like Junos that doesn't have the same baggage, but at least it's not Nortel or Fortinet.

What switches have you got? 9300s?

bledd · 14 Mar 2019 at 18:50

350 series, needed cheap 28 sfp ports. And quite a few of them, to replace some old kit.

Have been working through built in help to build up a list of common commands for the team.

Caged · 14 Mar 2019 at 19:15

Ah yeah the SMB range don't run IOS so don't just assume the CLI commands you find online are going to work. It's a deliberately similar syntax for obvious reasons but there's enough annoying differences.