[c-nsp] Ethernet Interfaces Speed and Duplex - Force or Auto

[Jeff Wojciechowski]

Thanks all for the great info and suggestions.

I set the interfaces to auto/auto and there were *almost* no errors overnight.

-Jeff

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Pshem Kowalczyk
Sent: Thursday, May 20, 2010 5:01 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Ethernet Interfaces Speed and Duplex - Force or Auto

Hi

On 21 May 2010 07:18, Jeff Wojciechowski <Jeff.Wojciechowski at midlandpaper.com> wrote:
> All:
>
> Curious what other network admins are doing out there for Ethernet interfaces as far as speed and duplex settings - weather to specify or to leave them auto negotiate.

{cut}

We always set the port speed and duplex, only if the other side doesn't support that (for example unmanaged media converters) we leave it to auto. We had cases in the past where devices got reloaded and when came back didn't negotiate properly (most often stuck in half-duplex). Those issues are sometimes quite difficult to spot. So we settled on hard settings.

kind regards
Pshem
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