[cisco-bba] strange dsl/pppoa disconnect

[Anastassios Chatzithomaoglou]

Dennis Peng wrote:

> In 12.2(13)T and later, LCP renegotation was not being handled for
> VPDN sessions. So like the case below, if we receive a LCP CONFREQ for
> a sessions which is already up, that triggers a renegotiation and the
> session would be dropped. The user should come back up on a different
> VPDN session, but we recently fixed this so the user would renegotiate
> without the VPDN session dropping and coming back up. The DDTS is
> CSCeb30098 and it should be fixed in 12.2(3).
> 
Maybe you mean 12.3(2)? Because i'm already using 12.3(1) ;-)

> Dennis
> 
> Anastassios Chatzithomaoglou [achatz at forthnet.gr] wrote:
> 
>>The following are some debug logs from a dsl customer getting strange 
>>disconnects.
>>
>>Although the acct record shows "lost-carrier" which i suppose means 
>>telco/copper problem, i still can't understand the first line which shows a 
>>LCP incoming packet.
>>
>>Any idea what might be happening?
>>
>>Jun 30 01:00:20.893: Vi17 LCP: I CONFREQ [Open] id 1 len 4
>>Jun 30 01:00:20.893: Vi17 PPP: Terminating bound session
>>Jun 30 01:00:20.893: Vi17 PPP: Sending Acct Event[Reneg] id[AF3]
>>Jun 30 01:00:20.893: Vi17 IPCP: Remove link info for cef entry x.x.x.x
>>Jun 30 01:00:20.893: Vi17 IPCP: State is Closed
>>Jun 30 01:00:20.897: Vi17 PPP: Phase is TERMINATING
>>Jun 30 01:00:20.897: Vi17 LCP: State is Closed
>>Jun 30 01:00:20.897: Vi17 PPP: Phase is DOWN
>>Jun 30 01:00:20.897: RADIUS(00000AF3): Using existing nas_port 865
>>Jun 30 01:00:20.897: RADIUS(00000AF3): Config NAS IP: x.x.x.x
>>Jun 30 01:00:20.897: RADIUS(00000AF3): sending
>>Jun 30 01:00:20.897: Vi17 IPCP: Remove route to x.x.x.x
>>Jun 30 01:00:20.897: Vi17 VPDN: Reseting interface
>>..
>>...
>>Jun 30 01:00:20.897: RADIUS:  Vendor, Cisco       [26]  35
>>Jun 30 01:00:20.897: RADIUS:   Cisco AVpair       [1]   29  
>>"connect-progress=LAN Ses Up"
>>Jun 30 01:00:20.897: RADIUS:  Acct-Terminate-Cause[49]  6   lost-carrier    
>>[2]
>>Jun 30 01:00:20.897: RADIUS:  Vendor, Cisco       [26]  35
>>Jun 30 01:00:20.897: RADIUS:   Cisco AVpair       [1]   29  
>>"disc-cause-ext=Lost Carrier"
>>
>>PS: Router is a 7206 (12.3(1)) used as a LNS.
>>
>>-- 
>>***********************************
>>   Chatzithomaoglou Anastasios
>>Network Design & Operations Center
>>          FORTHnet S.A.
>>      <achatz at forthnet.gr>
>>***********************************
>>
>>
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>>cisco-bba mailing list
>>cisco-bba at puck.nether.net
>>http://puck.nether.net/mailman/listinfo/cisco-bba
> 
> 

-- 
***********************************
    Chatzithomaoglou Anastasios
Network Design & Operations Center
           FORTHnet S.A.
       <achatz at forthnet.gr>
***********************************