On 2008/10/15 08:49 PM Larry Sheldon wrote:
Colin Alston wrote:
Maybe there should be something (I mean like, someone should come up
with a standard :P) to trace switches in a path... Problem is I think
even then the simple devices won't bother to support it.
I have been away from it for ma while and in truth don't know the
answer--but--
To the best of my knowledge, "Layer two Switches" in fact operate as
multi-port bridges.
If that is true, then they ought to be transmitting BDUs which should be
detectable and used for mapping.
Ahh, you are correct sir (as well as the off list responses :))
Found this rather quickly
http://www.geocities.com/milicsasa/Tools/l2trace/index.html
as well as
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/l2trace.pdf
Not sure why I didn't Google "layer 2 traceroute" before... Oh well,
live and learn, and work shorter hours.
Thanks :)
