[c-nsp] What happens during the "shutdown" and "no shutdown" to a 1000BASE-LX10 port

[Terence Scott]

Hi Pierre,

It is possible that the behaviour of the "show interfaces" command 
varies slightly from platform to platform. I am guessing that you are 
showing the output from a Catalyst 3750 switch, in any case I have seen 
the opposite behaviour on the Catalyst 2960 platform - which is what 
Martin has. Also the log may or may not contain entries showing the port 
entered the err-disabled state, this would depend on the logging level 
that is set on the switch that isn't necessarily "debugging".

Cheers,

Terence

-------- Original Message --------
*Subject: *Re: [c-nsp] What happens during the "shutdown" and "no 
shutdown" to a 1000BASE-LX10 port
*From: *Pierre Emeriaud <petrus.lt at gmail.com>
*To: *Terence Scott <terence.scott at um.edu.mt>, cisco-nsp at puck.nether.net
*CC: *Martin T <m4rtntns at gmail.com>
*Date: *11 August 2011 10:25:19 AM
> Hi Terence, Martin,
>
>
> err-disabled is indeed a plausible possibility, but IIRC, it should
> visible from a show int in the form:
>
> switch# sh int Gi1/0/7
> GigabitEthernet1/0/7 is down, line protocol is down (err-disabled)
>
> and the sh int status that Martin did should have showed it, which was
> not the case:
> Port      Name               Status       Vlan       Duplex  Speed Type
> Gi0/24    ->  Brocade         connected    trunk      a-full a-1000
> 1000BaseLX SFP
>
>
> Useful commands
> - sh int status err-disabled
> - sh log | i BPDU|err-disable
>
> Cisco doc: http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml
>
> regards,
> -pierre.
>