[c-nsp] Standby mode switchport status

[Peter Rathlev]

Hi Tom,

Could you paste the running-config interface Gi0/1 section?

Are you using some kind og EC protocol, like LACP or PAgP? If so, try
pasting a "show etherchannel X detail", where X is the Port-channel
interface Gi0/1 is part of.

Regards,
Peter

On Wed, 2008-04-23 at 16:27 +0900, Tom Storey wrote:
> Hi all,
> 
> I have a 2940 switch with an SFP based gigabit uplink port. Im plugging it
> into an Alcatel radio unit, which seems to be reporting that the link is
> up (there is a tick showing up in the management interface that represents
> "Port Up" which also goes away when I unplug the fibre), but on the Cisco
> I see the following:
> 
> Switch#sh int gi0/1
> GigabitEthernet0/1 is standby mode, line protocol is down (disabled)
> 
> Switch#sh ip int brief
> Interface            IP-Address   OK? Method Status         Protocol
> GigabitEthernet0/1   unassigned   YES unset  standby mode   down
> 
> Given what I said above about the Alcatel unit, it seems as though perhaps
> the Alcatel is receiving signal from the Cisco, but the Cisco isnt
> recognising anything. Have tried different fibre leads, plugging into
> different devices, different SFPs, but nothing.
> 
> Does anyone have any idea what "standby mode" means, and whether it could
> be responsible for this behaviour?
> 
> Ive done a bit of searching to try and find out what this means, but have
> so far come accross nothing that helps. Hoping someone here will have some
> ideas.
> 
> Thanks,
> Tom
> 
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