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Cisco 3750 ME - VPLS Issue

dylan.chidgey1
Level 1
Level 1

Hi All,

I am trying to integrate a Cisco 3750ME with MikroTik routers to have a VPLS tunnel between the two devices.     

I have not worked with ME series Cisco prior to this however have plenty of MikroTiks running VPLS between each other. I have found documentation on integrating the two however the example is for a 7600 router so the configuration varies slightly.

Please see debug output below:

20:48:51: %LDP-5-NBRCHG: LDP Neighbor 2.2.2.2:0 (1) is DOWN (TCP connection closed by peer)

20:49:03: %LDP-5-NBRCHG: LDP Neighbor 2.2.2.2:0 (1) is UP

20:49:03: MPLS peer 2.2.2.2 vcid 173, VC UP, VC state UP

Switch#sho xconnect all detail

Legend:    XC ST=Xconnect State  S1=Segment1 State  S2=Segment2 State

  UP=Up       DN=Down            AD=Admin Down      IA=Inactive

  SB=Standby  RV=Recovering      NH=No Hardware

XC ST  Segment 1                         S1 Segment 2                         S2

------+---------------------------------+--+---------------------------------+--

DN     ac   Gi1/1/2(Ethernet)            UP mpls 2.2.2.2:173                  DN

            Interworking: none                   Local VC label 18

                                                 Remote VC label 53

                                                 pw-class:

Switch#show mpls l2transport vc detail

Local interface: Gi1/1/2 up, line protocol up, Ethernet up

  Destination address: 2.2.2.2, VC ID: 173, VC status: down

    Output interface: none, imposed label stack {}

    Preferred path: not configured

    Default path: no route

    No adjacency

  Create time: 00:02:32, last status change time: 00:00:09

  Signaling protocol: LDP, peer 2.2.2.2:0 up

    Targeted Hello: 1.1.1.1(LDP Id) -> 2.2.2.2

    Status TLV support (local/remote)   : enabled/not supported

      Label/status state machine        : activating, LruRruD

      Last local dataplane   status rcvd: DOWN(PW-tx-fault)

      Last local SSS circuit status rcvd: no fault

      Last local SSS circuit status sent: DOWN(PW-rx-fault)

      Last local  LDP TLV    status sent: DOWN(PW-tx-fault)

      Last remote LDP TLV    status rcvd: not sent

    MPLS VC labels: local 18, remote 53

    Group ID: local 0, remote 0

    MTU: local 1598, remote 1598

    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

1 Reply 1

Nagendra Kumar Nainar
Cisco Employee
Cisco Employee

Hi,

It shows as "PW-tx-fault". Can you check if you have LDP enabled on egress interface?. Check the egress interface for xconnect peer 2.2.2.2 and see if you have LDP enabled with LDP neighborship up with the nexthop (on egress interface).

HTH,

Nagendra