[c-nsp] err-disable state on a cisco 3750 catalyst

[Nick Cutting]

Read this - http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html

However - as alan said - it is more important to figure out why this is happening - than to have it recover automatically.

Are you making configuration changes to the channel config (or member ports) to cause this - or does this happen after a while? 

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of A.L.M.Buxey at lboro.ac.uk
Sent: Tuesday, July 12, 2016 3:06 PM
To: Olivier CALVANO <o.calvano at gmail.com>
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] err-disable state on a cisco 3750 catalyst

Hi,

> Jul 12 17:30:36.218: %PM-4-ERR_DISABLE: channel-misconfig error 
> detected on Gi1/0/1, putting Gi1/0/1 in err-disable state

so...what is the cause of this.  check the config of gi1/0/1, ensure it matches the methods/speed etc of other members of the port-channel etc its been assigned to

> The port is in err-disable regularly .. a shut and no shut that's 
> restart

err-disable doing its job

> there is a solution to disable the errdisable on this type of switch?

huh???? its currently likely saving your a** from something far worse happening on your network.

alan
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