[c-nsp] MPLS router-ID

Mohammad Khalil eng_mssk at hotmail.com
Tue Aug 11 09:39:49 EDT 2015


Hi all
I have the below case
I have one of my PEs already configured with a router-id (which is my private loopback interface)
Am trying to establish xconnect with my uplink provider (which uses Juniper)
The SP insisted to use public IP address for LDP neighborship , I cannot change my router-id as I will lose all of my active L2VPN sessions in my network (according to what I know , I cannot have expect for one ID for my router)
I configured a public IP address and advertised it into BGP to my SP and the MPLS LDP session is up , but the targeted LDP session is passive ! 

R1#show mpls ldp neighbor
    Peer LDP Ident: 20.20.20.20:0; Local LDP Ident 1.1.1.1:0
        TCP connection: 20.20.20.20.646 - 212.118.1.1.24988
        State: Oper; Msgs sent/rcvd: 91/77; Downstream
        Up time: 00:12:18
        LDP discovery sources:
          FastEthernet1/0, Src IP addr: 212.118.201.20
          Targeted Hello 212.118.1.1 -> 20.20.20.20, passive
        Addresses bound to peer LDP Ident:
          20.20.20.20     212.118.201.20

1.1.1.1 is my router-id , 212.118.1.1 is my transport-address configured under the transit interface 

Any ideas?

I have tested the same scenario on GNS3 with all Cisco and I have established the targeted LDP session successfully and CE to CE connectivity is in place

BR,
Mohammad

 		 	   		  


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