[cisco-bba] strange dsl/pppoa disconnect

[Dennis Peng]

Anastassios Chatzithomaoglou [achatz at forthnet.gr] wrote:
> 
> 
> 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) ;-)

Oops, that was a typo. It should be 12.3(3). :)

Dennis

> >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 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>
> ***********************************