[cisco-bba] VPDN session stuck in wiccn state ?

Andy Saykao andy.saykao at staff.netspace.net.au
Wed Mar 25 20:56:42 EDT 2009

Hi Tony,

Thank you for your reply.

> One thing I can see from your output is that all of the sessions with
this state are on the same tunnel (TunID: 21116). Do you have any other
sessions that are working on this same tunnel ?

Yes there are valid sessions on the tunnel.

> Is it happening across all of your LNS, or just one ? When you
upgraded did you change IOS ? What IOS version are you running ? Have
you tried a different IOS ? Does a reboot fix the problem ?

It's happening across all of our LNS's. We've been working extensively
with Cisco to get these LNS's up and running and using a special
engineering release from the 12.2(33) train. No, we have not tried a
different IOS given that we've been working with Cisco on getting this
far already. 

A reboot fixes the problem temporarily but when we arrive the next day,
there's a whole bunch of sessions waiting for us stuck in this "wiccn"

> Did the LAC provider ("T" or "O" ?) have to change anything on their 
> end as part of the changes ? They will always say that everything is 
> ok, doesn't mean it is :)

We terminate a few tunnels from a variety of Service Providers on these
LNS's and are currently only having issues with one provider where we
encounter this problem.



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