[j-nsp] L2 Circuits accross domains

Peter Nyamukusa peternyamukusa at yahoo.com
Tue Nov 20 01:33:34 EST 2012


Hi Folks,

I have an exsisting L3 / L2 MPLS network with Cisco ASR on the Core as PE router and Junper routers as PE router, i have been running l2circuits sucessfully for some time now with out any problems using the below configs on my PEs, I am running IS-IS as my IGP and BGP



[edit protocols l2circuit]
peter at xxx-PE1# show 

}
neighbor 41.x.x.1 {
    interface ge-0/0/2.2001 {
        virtual-circuit-id 2001;
        description "XYZ L2";
        no-control-word;

        ignore-mtu-mismatch;

[edit interfaces ge-0/0/2]
peter at xxx-PE1# show 
description "Customers L2 Circuits";
vlan-tagging;
encapsulation vlan-ccc;
unit 2001 {
    description "XYZ L2";
    encapsulation vlan-ccc;
    vlan-id 2001;
}

Neighbor: 41.x.x.2
    Interface                 Type  St     Time last up          # Up trans
    ge-0/0/2.2001(vc 2001)    rmt   Up     Nov 13 15:29:31 2012           1
      Remote PE: 41.x.x.2, Negotiated control-word: No
      Incoming label: 299776, Outgoing label: 299776
      Local interface: ge-0/0/2.2001, Status: Up, Encapsulation: VLAN
        Description: XYZ L2
Neighbor: 41.x.x.x.1 
    Interface                 Type  St     Time last up          # Up trans
    ge-0/0/2.2101(vc 2101)    rmt   Up     Nov 13 15:29:28 2012           1
      Remote PE: 41.x.x.1, Negotiated control-word: Yes (Null)
      Incoming label: 299792, Outgoing label: 333568
      Local interface: ge-0/0/2.2101, Status: Up, Encapsulation: VLAN
        Description: ABC L2 - ANY POP



Now I am trying to extend these L2 circuits to anther MPLS Domain where we have direct Gigabit fibre connection I am using the same concept and establish ospf peering on the ASBR router with the remote ASN and redistributed my IGP so my loopbacks are seen by the PEs on both sides of the domains and establish ldp peering how ever the l2circuit is not coming up any help is appriciated as I have been working on this more than 24hrs and think that i am now a bit clouded


peter at yyy-BR1# run show l2circuit connections            (ASN 1234)  
Layer-2 Circuit Connections:

Legend for connection status (St)   
EI -- encapsulation invalid      NP -- interface h/w not present   
MM -- mtu mismatch               Dn -- down                       
EM -- encapsulation mismatch     VC-Dn -- Virtual circuit Down    
CM -- control-word mismatch      Up -- operational                
VM -- vlan id mismatch           CF -- Call admission control failure
OL -- no outgoing label          IB -- TDM incompatible bitrate 
NC -- intf encaps not CCC/TCC    TM -- TDM misconfiguration 
BK -- Backup Connection          ST -- Standby Connection
CB -- rcvd cell-bundle size bad  XX -- unknown

Legend for interface status  
Up -- operational            
Dn -- down                   
Neighbor: 5.1.1.2 
    Interface                 Type  St     Time last up          # Up trans
    ge-0/0/0.2900(vc 2900)    rmt   OL   

peter at xxx-PE1# run show l2circuit connections    (ASN4321)
Layer-2 Circuit Connections:

Legend for connection status (St)   
EI -- encapsulation invalid      NP -- interface h/w not present   
MM -- mtu mismatch               Dn -- down                       
EM -- encapsulation mismatch     VC-Dn -- Virtual circuit Down    
CM -- control-word mismatch      Up -- operational                
VM -- vlan id mismatch           CF -- Call admission control failure
OL -- no outgoing label          IB -- TDM incompatible bitrate 
NC -- intf encaps not CCC/TCC    TM -- TDM misconfiguration 
BK -- Backup Connection          ST -- Standby Connection
CB -- rcvd cell-bundle size bad  XX -- unknown

Legend for interface status  
Up -- operational            
Dn -- down                   
Neighbor: 5.1.1.1 
    Interface                 Type  St     Time last up          # Up trans
    ge-0/0/2.2900(vc 2900)    rmt   OL   

 


---------------------------------------------------------------------------
| Kind Regards, |
| Peter Nyamukusa  |
| MCSE-2000/2003, CCIP, CCDP, CCVP, CCNP,      |
| JNCIS-ent, JNCIS-er, JNCIS-Sec, JNCIA-Ex, Linux+, A+   |
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