[c-nsp] MPLS LDP Neighbourship Flapping

Sat Nov 12 09:03:22 EST 2005

hi Aamer
This is a targetted peer.
The Cisco IOS 12.2(18)SXF is being used.
 I will provide the output of debug command requested and as well as show
tech later.

 On 11/12/05, Aamer Akhter (aakhter) <aakhter at cisco.com> wrote:
>
> Atiqur,
>
> Is this a targetted peer (usually l2vpn or TE) or a basic peer (directly
> connected)?
>
> You may want to get the output from the following debugs. Be sure to apply
> the peer acl so that you only get debugs from this particular peer.
>
> debug mpls ldp messages received all peer-acl <acl>
> debug mpls ldp messages sent all peer-acl <acl>
> debug mpls ldp session io all peer-acl <acl>
>
> Which version of IOS are you running? Be aware that the show-tech didn't
> seem to get sent...
>
> --
> Aamer Akhter / aa at cisco.com
> NSITE - cisco Systems
>
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net
> > [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> > Atiqur Rahman Mohammed
> > Sent: Saturday, November 12, 2005 6:13 AM
> > To: cisco-nsp
> > Subject: [c-nsp] MPLS LDP Neighbourship Flapping
> >
> > Can anyone help resolving this issue.
> > Please find topology diagram of my network attached.
> > The issue is that LDP neigbhourship between MCCTY1LOC1B001C76001 and
> > MCCTY2LOC1B001C76001is flapping. I continuosly get these message.
> > C76001#
> > *Nov 12 15:06:17.654: %LDP-5-NBRCHG: LDP Neighbor
> > 192.168.71.165:0 <http://192.168.71.165:0><http://192.168.71.165:0/>is
> DOWN
> > *Nov 12 15:07:53.516: %LDP-5-NBRCHG: LDP Neighbor
> > 192.168.71.165:0 <http://192.168.71.165:0><http://192.168.71.165:0/>is
> UP
> > *Nov 12 15:10:53.476: %LDP-5-NBRCHG: LDP Neighbor
> > 192.168.71.165:0 <http://192.168.71.165:0><http://192.168.71.165:0/>is
> DOWN
> > *Output of the show mpls ldp neighbour command from
> > MCCTY1LOC1B001C76001*
> > **
> > Peer LDP Ident: 192.168.71.164:0 <http://192.168.71.164:0> <
> http://192.168.71.164:0/>;
> > Local LDP
> > Ident 192.168.71.161:0 <http://192.168.71.161:0> <
> http://192.168.71.161:0/>
> > TCP connection: 192.168.71.164.11170 - 192.168.71.161.646
> > State: Oper; Msgs sent/rcvd: 1680/1683; Downstream
> > Up time: 23:44:50
> > LDP discovery sources:
> > Targeted Hello 192.168.71.161 <http://192.168.71.161> <
> http://192.168.71.161/> ->
> > 192.168.71.164 <http://192.168.71.164><http://192.168.71.164/>,
> > active, passive
> > GE-WAN2/4, Src IP addr: 192.168.71.22 <http://192.168.71.22> <
> http://192.168.71.22/>
> > Addresses bound to peer LDP Ident:
> > 192.168.71.164 <http://192.168.71.164> <http://192.168.71.164/>
> 192.168.72.3 <http://192.168.72.3>
> > <http://192.168.72.3/>
> > 192.168.49.130 <http://192.168.49.130> <http://192.168.49.130/>
> > 192.168.71.189 <http://192.168.71.189><http://192.168.71.189/>
> > 192.168.71.22 <http://192.168.71.22> <http://192.168.71.22/>
> > Peer LDP Ident: 192.168.71.163:0 <http://192.168.71.163:0> <
> http://192.168.71.163:0/>;
> > Local LDP Ident
> > 192.168.71.161:0 <http://192.168.71.161:0> <http://192.168.71.161:0/>
> > TCP connection: 192.168.71.163.11192 - 192.168.71.161.646
> > State: Oper; Msgs sent/rcvd: 1677/1678; Downstream
> > Up time: 23:44:47
> > LDP discovery sources:
> > Targeted Hello 192.168.71.161 <http://192.168.71.161> <
> http://192.168.71.161/> ->
> > 192.168.71.163 <http://192.168.71.163><http://192.168.71.163/>,
> > active, passive
> > Addresses bound to peer LDP Ident:
> > 192.168.71.163 <http://192.168.71.163> <http://192.168.71.163/> 5.5.5.2<http://5.5.5.2><
> http://5.5.5.2/>
> > 3.3.3.1 <http://3.3.3.1><http://3.3.3.1/>
> > 192.168.71.9 <http://192.168.71.9> <http://192.168.71.9/>
> > 192.168.49.33 <http://192.168.49.33> <http://192.168.49.33/>
> > Peer LDP Ident: 192.168.71.168:0 <http://192.168.71.168:0> <
> http://192.168.71.168:0/>;
> > Local LDP Ident
> > 192.168.71.161:0 <http://192.168.71.161:0> <http://192.168.71.161:0/>
> > TCP connection: 192.168.71.168.11120 - 192.168.71.161.646
> > State: Oper; Msgs sent/rcvd: 1680/1678; Downstream
> > Up time: 23:44:46
> > LDP discovery sources:
> > Targeted Hello 192.168.71.161 <http://192.168.71.161> <
> http://192.168.71.161/> ->
> > 192.168.71.168 <http://192.168.71.168><http://192.168.71.168/>,
> > active, passive
> > Addresses bound to peer LDP Ident:
> > 192.168.71.168 <http://192.168.71.168> <http://192.168.71.168/>
> > 192.168.71.18 <http://192.168.71.18><http://192.168.71.18/>
> > Peer LDP Ident: 192.168.71.167:0 <http://192.168.71.167:0> <
> http://192.168.71.167:0/>;
> > Local LDP Ident
> > 192.168.71.161:0 <http://192.168.71.161:0> <http://192.168.71.161:0/>
> > TCP connection: 192.168.71.167.11059 - 192.168.71.161.646
> > State: Oper; Msgs sent/rcvd: 1680/1686; Downstream
> > Up time: 23:45:10
> > LDP discovery sources:
> > Targeted Hello 192.168.71.161 <http://192.168.71.161> <
> http://192.168.71.161/> ->
> > 192.168.71.167 <http://192.168.71.167><http://192.168.71.167/>,
> > active, passive
> > Addresses bound to peer LDP Ident:
> > 192.168.71.167 <http://192.168.71.167> <http://192.168.71.167/>
> > 192.168.71.37 <http://192.168.71.37><http://192.168.71.37/>
> > 5.5.5.6 <http://5.5.5.6> <http://5.5.5.6/> 3.3.3.2 <http://3.3.3.2> <
> http://3.3.3.2/>
> > Peer LDP Ident: 192.168.71.165:0 <http://192.168.71.165:0> <
> http://192.168.71.165:0/>;
> > Local LDP Ident
> > 192.168.71.161:0 <http://192.168.71.161:0> <http://192.168.71.161:0/>
> > TCP connection: 192.168.71.165.28858 - 192.168.71.161.646
> > State: Oper; Msgs sent/rcvd: 59/2; Downstream
> > Up time: 00:01:08
> > LDP discovery sources:
> > Targeted Hello 192.168.71.161 <http://192.168.71.161> <
> http://192.168.71.161/> ->
> > 192.168.71.165 <http://192.168.71.165><http://192.168.71.165/>,
> > active, passive
> > I am also attaching the output of show tech-support from
> > MCCTY1LOC1B001C76001 and MCCTY2OC1B001C76001
> > gards
> > Atiqur Rahman
> > Infocomm Technology Cente
> > Reliance Infocomm
> > Mobile: 09324621784
> > _______________________________________________
> > cisco-nsp mailing list cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
>

--
Regards,
Atiqur Rahman
Infocomm Technology Cente
Reliance Infocomm
Mobile: 09324621784