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Community Member

Tracing a frame thru switches in a flat network

Is there a way to track/ trace/ audit what specific switches that a frame traverses from source to destination in a flat network??..this would be functionality similar to traceroute for IP...

thx

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Cisco Employee

Re: Tracing a frame thru switches in a flat network

What switches do you have? Take a look at the l2trace command in CAT OS

http://cio.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_6_3/cmd_ref/ghi_cmd.htm#96626

Community Member

Re: Tracing a frame thru switches in a flat network

I have a 4006 and some 3500XL switches and some 2950's. Also some BR350 wireless boxes on the network.

I tried using the 12trace command on my 4006, but it gave me the "unrecognized command" error...

Cisco Employee

Re: Tracing a frame thru switches in a flat network

Catalyst 4000 family switches must be running supervisor engine software release 6.2 or later. If you are not,I suggest that you upgrade to 6.3(9). Here is the output from a labswitch

Console> (enable) l2trace

Usage: l2trace [vlan] [detail]

l2trace [detail]

(src-ip-addr, dest-ip-addr: IP alias or IP address)

Console> (enable)

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