[c-nsp] C3550-12T - Gig copper ports won't link at 1Gb

graham graham at g-rock.net
Sun Apr 15 18:09:07 EDT 2012


Hi there,

Anyone out there still using this older switch?  I just pulled one out of
the closet - and having a heck of a time getting the switchports to actually
link up at 1Gb.  I have a couple of 1Gb capable devices (servers, other
routers, etc) that do 1Gb all day long on other Cisco switches - but not on
the 3550-12T.  Remember, this is the switch that has (10) 10/100/1000 BaseTX
and (2) 1000 Gbic slots ..

I have tried to put the copper interface into "speed auto 1000" as well as
"speed 1000" (with the other side matching) and always results in a
not-connect. The command 'speed nonegotiate' doesn't exist.

Seems that 100-Full is the best I can get it.

It's running the last IOS for it, c3550-ipservicesk9-mz.122-44.SE6.bin.

Any guidance would be appreciated.  Thanks!

-graham




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