debug help mac address on Cisco 2950 please!
Hello, Mr. Cisco gurus!
I know that switches by default if it does not know about the host mac address it will broadcast by default to all port except the one it originated from!
Is there any debugging commands to see all this from happening?
Any debugging commands to see the mac address learning?
Thank you!
I know that switches by default if it does not know about the host mac address it will broadcast by default to all port except the one it originated from!
Is there any debugging commands to see all this from happening?
Any debugging commands to see the mac address learning?
Thank you!
=============================
on to BCMSN ^=============^
<Lab>
2 x 3550 EMI
2 x 2950
2 x 3640
1 x 2621
=============================
on to BCMSN ^=============^
<Lab>
2 x 3550 EMI
2 x 2950
2 x 3640
1 x 2621
=============================
Comments
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CiskHo
Member Posts: 188
"sh mac-add" will show you what has already been learned and added to the mac address table. You could use wireshark to see the broadcast going out to whatever port the sniffer/PC was plugged into. Not sure of anything else.My Lab Gear:
2811(+SW/POE/ABGwifi/DOCSIS) - 3560G-24-EI - 3550-12G - 3550POE - (2) 2950G-24 - 7206VXR - 2651XM - (2) 2611XM - 1760 - (2) CP-7940G - ESXi Server
Just Finished: RHCT (1/8/11) and CCNA:S (Fall 2010)
Prepping For: VCP and CCNP SWITCH, ROUTE, TSHOOT -
jason_lunde
Member Posts: 567
debug arp
debug ip packet
the list goes on and on. Pls only in lab though, not production hopefully.