[j-nsp] Interoperability between Juniper and Cisco on MPLS Martini

Alex Rubenstein alex at nac.net
Wed Dec 24 03:48:38 EST 2003

I am trying to get a l2circuit working between a M40 and 7507.

interface FastEthernet0/0/0.16
 encapsulation dot1Q 16
 mpls l2transport route 209.123.x.y 623


        unit 623 {
            encapsulation vlan-ccc;
            vlan-id 623;

    l2circuit {
        neighbor 209.123.x.z {
            interface ge-6/1/0.623 {
                virtual-circuit-id 623;


core2.xxx#sho mpls l2transport vc 623 detail
Local interface: Fa0/0/0.16 up, line protocol up, Eth VLAN 16 up
  Destination address: 209.123.x.y, VC ID: 623, VC status: down
    Tunnel label: not ready, LFIB entry untagged
    Output interface: unknown, imposed label stack {}
  Create time: 01:23:09, last status change time: never
  Signaling protocol: LDP, peer 209.123.x.y:0 up
    MPLS VC labels: local 998, remote unassigned
    Group ID: local 1, remote unknown
    MTU: local 1500, remote unknown
    Remote interface description:
  Sequencing: receive disabled, send disabled
  VC statistics:
    packet totals: receive 0, send 0
    byte totals:   receive 0, send 0
    packet drops:  receive 0, send 0

alex at gbr2.zzz> show l2circuit connections extensive
Neighbor: 209.123.x.z
    Interface                 Type  St     Time last up          # Up trans
    ge-6/1/0.623 (vc 623)     rmt   VC-Dn  -----                          0
      Local interface: ge-6/1/0.623, Status: Up, Encapsulation: VLAN
      Remote PE: 209.123.x.z, Negotiated control-word: Yes (Null)
      Incoming label: 108000, Outgoing label: 998
        Time                  Event                   Interface/Lbl/PE
        Dec 24 02:28:38 2003  PE route changed
        Dec 24 02:28:38 2003  Out lbl Update                       998
        Dec 24 02:28:38 2003  In lbl Update                     108000
        Dec 24 02:28:38 2003  loc intf up                 ge-6/1/0.623

12.3.5a on the cisco, 5.7R2.4 on the M40.

Any pointers, or any examples from people who have done this will be
greatly appreciated.

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