Problems connectivity GE on Foundry BigIron to Cisco 2950T

Sun Jan 15 21:00:48 UTC 2006

Hi,

Yup, it's definately a cross-over cable. ;) I had already tried this 
suggestion but the cisco 2950T doesn't appear to have the "no nego auto" 
command :/

(config)#int Gi0/2
(config-if)#no n?
% Unrecognized command
(config-if)#no n
(config-if)#no neg auto
                ^
% Invalid input detected at '^' marker.

Sam

On Sun, 15 Jan 2006, David Hubbard wrote:

> You are using a crossover cable right?  If that's all set, you
> do need to have neg-off on the Foundry and "no nego auto" on the
> Cisco.  I haven't used the rj-45 gbics in the Foundry equipment
> before, not sure if that could be an issue.  I would go with
> the hard set 1000-full on both sides.
>
> David
>
> From: Sam Stickland
>>
>> Hi,
>>
>> I'm having a right mare trying to get a Foundry BigIron to
>> connect up to a cisco 2950T, via Gigabit copper.
>>
>> The Foundry BigIron is using a cisco RJ45/copper GBIC that
>> was pulled from a live cisco 6500, where it was working
>> fine. The cisco 2950T has two fixed 10/100/1000 RJ45 ports.
>>
>> The cables between the equipment have been tested and are fine.
>>
>> The Foundry has three different types of the gigabit negiation modes:
>>
>>    auto-gig        Autonegotiation
>>    neg-full-auto   Autonegotiation first, if failed try
>> non-autonegotiation
>>    neg-off         Non-autonegotiation
>>
>> I've tried all three, complete with all the other
>> possibilities with the cisco 2950T (which has fixed full
>> duplex operation, but can be set to 'speed auto' or
>> 'speed 1000').
>>
>> None of these combinations bring up the link. The cisco 2950
>> never gets a link light. The Foundry gets a link light
>> regardless when it's mode is set to 'gig-default neg-off'.
>>
>> I'm at a bit of a loss to explain this. Does anyone know of any
>> configuration issues that can explain this, or is it time to start
>> swapping out hardware components?
>>
>> Sam
>>
>>
>