When you start mpls with the 'mpls ip' command it binds to the highest loopback address immediately. If you enter the 'mpls ldp router-id' command after it will not take effect until you reload the router or use the 'force' keyword on the end of the 'mpls ldp router-id' command.
Hope that helps. Jason On Thu, Jun 2, 2011 at 1:08 PM, Samir Idris <[email protected]> wrote: > Hi Guys, > > I am just wondering when I do "mpls ldp route-id lo99" should it not start > peering sending neighbour it's identity as lo99? I am peering R1 and R2. > Gere is the config: > > -------------------------------------------------------------------- > > R1: > > R1#sh run | s mpls > mpls ip > mpls ldp router-id Loopback99 > > Building configuration... > Current configuration : 72 bytes > ! > interface Loopback99 > ip address 111.111.111.111 255.255.255.255 > end > > R1#sh run int lo0 > Building configuration... > Current configuration : 65 bytes > ! > interface Loopback0 > ip address 200.0.0.1 255.255.255.255 > end > > R2: > > R2#sh run | s mpls > mpls label protocol ldp > mpls ip > mpls ldp router-id Loopback0 > > R2#sh run int lo0 > Building configuration... > Current configuration : 65 bytes > ! > interface Loopback0 > ip address 200.0.0.2 255.255.255.255 > end > R2#sh run int lo99 > Building configuration... > Current configuration : 72 bytes > ! > interface Loopback99 > ip address 222.222.222.222 255.255.255.255 > end > ---------------------------------------------------------------------- > Peering happens but regardless it picks the highest loopback on both the > routers: > > R1#sh mpls ldp ne > Peer LDP Ident: 222.222.222.222:0; Local LDP Ident 200.0.0.1:0 > TCP connection: 222.222.222.222.16331 - 200.0.0.1.646 > State: Oper; Msgs sent/rcvd: 47/46; Downstream > Up time: 00:23:03 > LDP discovery sources: > FastEthernet0/1, Src IP addr: 192.168.12.2 > Addresses bound to peer LDP Ident: > 192.168.12.2 192.168.24.2 192.168.23.2 192.168.25.2 > 200.0.0.2 222.222.222.222 > > R2#sh mpls ldp ne > Peer LDP Ident: 200.0.0.1:0; Local LDP Ident 222.222.222.222:0 > TCP connection: 200.0.0.1.646 - 222.222.222.222.16331 > State: Oper; Msgs sent/rcvd: 47/47; Downstream > Up time: 00:23:25 > LDP discovery sources: > FastEthernet0/0, Src IP addr: 192.168.12.1 > Addresses bound to peer LDP Ident: > 10.10.10.1 192.168.12.1 200.0.0.1 111.111.111.111 > > Cany anyone guide? Thanks. > > Regards, > Samir Idris. > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
