Hi, got hit by a quite interesting bug in the CBS3020 switches yesterday:
sw2-int.blau#sh int g0/24
GigabitEthernet0/24 is up, line protocol is down (disabled)
...
5 minute input rate 1759000 bits/sec, 350 packets/sec
5 minute output rate 2122000 bits/sec, 383 packets/sec
this interface is "up/down" since about a day, and happily forwarding
packets. It does *not* do CDP, which is how we noticed (we monitor
CDP relationships to see topology/device changes).
This is a WS-CBS3020-HPQ, running cbs30x0-ipbase-mz.122-53.SE1, and
the interface config is really trivial:
interface GigabitEthernet0/24
description Trunk to sw1-int.blau:gi0/24
switchport trunk allowed vlan 79-82,87-89
switchport mode trunk
media-type internal
end
... and no matter what I do (shut/no shut on either end, change
media-type to external/internal) will bring the port back to up/up.
Shutting down the other end will bring the port to down/down, so it's
still noticing something :-) - but unshutting will bring it back to up/down.
"errdisable autorecovery" didn't help either.
Weird, eh?
Question to the list: has one of you seen this, and found a way to un-stick
the port without rebooting?
gert
--
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Gert Doering - Munich, Germany [email protected]
fax: +49-89-35655025 [email protected]
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