[c-nsp] VPDN Problem

Arie Vayner (avayner) avayner at cisco.com
Tue Jan 5 03:10:46 EST 2010


Sebastian,

What do you mean by "if you exceed your bandwidth"?

You could try the following debugs for more info:
debug ppp nego
debug vpdn l2x event
debug vpdn l2x error
debug radius

Arie

-----Original Message-----
From: Sebastian Ganschow [mailto:s.ganschow at buelow-masiak.de] 
Sent: Tuesday, January 05, 2010 09:35
To: Arie Vayner (avayner); cisco-nsp
Subject: AW: RE: [c-nsp] VPDN Problem

Hi,

Output of show vpdn history failure 

#sh vpdn history failure 
User: xyz, MID = 902
NAS: lac, IP address = 1.2.3.4, CLID = 63366
Gateway: lns, IP address = 5.6.7.8, CLID = 1417
Log time: Jan 4 10:55:24.390, Error repeat count: 3
Failure type: The remote server closed this session
Failure reason: Result 2, Error 6

As I found out, the failure reason could be interpreted as the 
following:

Result 2 	- General error (Error code indicates problem)
Error 2  	- Invalid destination

What is the meaning of invalid destination? As the tunnel is established 
and gets only dropped, if you exceed your bandwith, I can't get the 
meaning of the error message from the context.

Regards,
Sebastian


> -----Ursprüngliche Nachricht-----
> Von: Arie Vayner (avayner) [mailto:avayner at cisco.com]
> Gesendet: Mittwoch, 23. Dezember 2009 17:23
> An: Sebastian Ganschow; cisco-nsp at puck.nether.net
> Betreff: RE: [c-nsp] VPDN Problem
> 
> Sebastian,
> 
> You can try looking at the output of "show vpdn history".
> I think the error you get means that the remote side requested a
> disconnect, but I also see some cases this appears by mistake...
> 
> Arie
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Sebastian
> Ganschow
> Sent: Wednesday, December 23, 2009 12:17
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] VPDN Problem
> 
> Hi all,
> 
> we've got a little problem with our vpdn where we're stuck. Could
> anyone
> explain the following debugging messages from our 7206 to me:
> 
> VPDN Vi12 disconnect (AAA) IETF: 8/port-error Ascend: 41/TCP Foreign
> Host Close
> VPDN Vi12 vpdn shutdown session, result=2, error=6, vendor_err=0,
> syslog_error_code=23, syslog_key_type=1
> %VPDN-6-CLOSED: L2TP LNS viade-dbmg-lns closed Vi12 user username;
> Result
> 2, Error 6, Locally generated disconnect
> 
> 
> What is the meaning of:
>  - 8/port-error Ascend: 41/TCP
>  - Result 2, Error 6, Locally generated disconnect
> 
> On CCO there is no information about those messages.
> 
> The session gets disconnected, if the upstream bandwith is exceeded.
> There
> are two providers, who are delivering those vpdn sessions to us. We've
> tried with users of them, but the disconnect only happens on our own
> LNS.
> If the user is connected two the LNS of one of the two providers, the
> session won't be disconnected.
> 
> Any Ideas?
> 
> Regards
> Sebastian
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