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

[graham]

Correct - doesn't even link with auto/auto. Can only get it to link at 100.

I am armed with new cabling and try to rule out the physical.

Nothing in the init process that is indicating any bad phy or anything of
the sort - I am hoping it's not a bad switch.

Thanks for all the replies.

-graham


On 4/16/12 5:50 AM, "Keegan Holley" <keegan.holley at sungard.com> wrote:

> I agree with that.  If it doesn't link at all with auto auto then the link
> pulse frames that control speed negotiation are some how hindered.  Since you
> have three different devices exhibiting the same behavior on newer code I
> would even skip to the switch being bad.
> 
> Sent from my iPhone
> 
> On Apr 16, 2012, at 3:55 AM, John van Oppen <jvanoppen at spectrumnet.us> wrote:
> 
>> Are you saying that the link does not come up with both ends in auto/auto?
>> At least on copper, that would indicate to me that you either have a bad
>> switch or bad cabling...   Are you sure the unit you have is good?    I am
>> plugged into a 3550-12T here at home with a few machines and auto works fine
>> with every nic I have tried.
>> 
>> 
>> John
>>