Procure switch. Identify connections on switch ports.

[aurimas]

Hi,

I need to enable BPDU guard on procure ports where servers and computers are connected to the switch. Could you please advise how could I identify if server or another switch is connected to the port.

I tried "sh mac-address" on the switch and for example port 5 shows 23 different mac addresses. So it is confusing. We have couple ASA routers and around 10 switches.

Thanks,

[paulgear · Accepted solution]

Hi Aurimas,

The best way to work out which ports are switches is to use LLDP/CDP.  The command you're looking for is 'show lldp info remote-device'.  This will show you all switches and routers that have LLDP or CDP enabled.  You may have to explicitly enable CDP on your Cisco devices (i can't remember whether it's turned on by default).

[cenk sasmaztin]

can get all mac table with snmp

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=115&prodSeriesId=3356807&prodTypeId=12883&objectID=c02609159

in this way you see all other equipment on your switches ports (server,router,switch,pc,printer etc.)