[87937] in North American Network Operators' Group
RE: Problems connectivity GE on Foundry BigIron to Cisco 2950T
daemon@ATHENA.MIT.EDU (David Hubbard)
Sun Jan 15 15:21:57 2006
Date: Sun, 15 Jan 2006 15:21:33 -0500
From: "David Hubbard" <dhubbard@dino.hostasaurus.com>
To: "Sam Stickland" <sam_ml@spacething.org>, <nanog@nanog.org>
Errors-To: owner-nanog@merit.edu
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=20
From: Sam Stickland
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> Hi,
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> I'm having a right mare trying to get a Foundry BigIron to=20
> connect up to a cisco 2950T, via Gigabit copper.
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> The Foundry BigIron is using a cisco RJ45/copper GBIC that=20
> was pulled from a live cisco 6500, where it was working
> fine. The cisco 2950T has two fixed 10/100/1000 RJ45 ports.
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> The cables between the equipment have been tested and are fine.
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> The Foundry has three different types of the gigabit negiation modes:
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> auto-gig Autonegotiation
> neg-full-auto Autonegotiation first, if failed try=20
> non-autonegotiation
> neg-off Non-autonegotiation
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> I've tried all three, complete with all the other=20
> possibilities with the cisco 2950T (which has fixed full
> duplex operation, but can be set to 'speed auto' or
> 'speed 1000').
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> None of these combinations bring up the link. The cisco 2950=20
> never gets a link light. The Foundry gets a link light
> regardless when it's mode is set to 'gig-default neg-off'.
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> I'm at a bit of a loss to explain this. Does anyone know of any=20
> configuration issues that can explain this, or is it time to start=20
> swapping out hardware components?
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> Sam
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