[c-nsp] VFI LDP transport signaled down (ME3600x)

[Ihsan Junaidi Ibrahim]

Hi all,

My topology as follows:

PE1--P1--P2--P3--P4--P5--PE2

PE1 lo0 - 200.28.0.15 (15.2(2)S) loader 12.2(52r)EY1
PE2 lo0 - 200.28.0.120 (15.2(2)S) loader 12.2(52r)EY2

Are there specific nuances for an LDP signaled transport for EoMPLS and VPLS in the Whales platform?

An xconnect from PE1 to PE2 is signaled successfully however a VPLS instance based on BGP autodiscovery (manual VPLS works) is unable to bring up the LDP l2transport signal although the VFI is signaled up.

EoMPLS
----
es-103-glsfb#sh xconnect peer 200.28.0.120 vc 5070         
Legend:    XC ST=Xconnect State  S1=Segment1 State  S2=Segment2 State
  UP=Up       DN=Down            AD=Admin Down      IA=Inactive
  SB=Standby  HS=Hot Standby     RV=Recovering      NH=No Hardware

XC ST  Segment 1                         S1 Segment 2                         S2
------+---------------------------------+--+---------------------------------+--
UP pri   ac Gi0/19:1(Ethernet)           UP mpls 200.28.0.120:5070            UP

es-103-glsfb#sh mpls l2transport vc 5070 detail 
Local interface: Gi0/19 up, line protocol up, Ethernet:1 up
  Destination address: 200.28.0.120, VC ID: 5070, VC status: up
    Output interface: Te0/2, imposed label stack {298 16}
    Preferred path: not configured  
    Default path: active
    Next hop: 200.28.2.242
  Create time: 02:10:43, last status change time: 02:08:57
  Signaling protocol: LDP, peer 200.28.0.120:0 up
    Targeted Hello: 200.28.0.15(LDP Id) -> 200.28.0.120, LDP is UP
    Status TLV support (local/remote)   : enabled/supported
      LDP route watch                   : disabled
      Label/status state machine        : established, LruRru
      Last local dataplane   status rcvd: No fault
      Last BFD dataplane     status rcvd: Not sent
      Last BFD peer monitor  status rcvd: No fault
      Last local AC  circuit status rcvd: No fault
      Last local AC  circuit status sent: No fault
      Last local LDP TLV     status sent: No fault
      Last remote LDP TLV    status rcvd: No fault
      Last remote LDP ADJ    status rcvd: No fault
    MPLS VC labels: local 17, remote 16 
    Group ID: local 0, remote 0
    MTU: local 9178, remote 9178
    Remote interface description: 
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  Dataplane:
    SSM segment/switch IDs: 45083/8194 (used), PWID: 2
  VC statistics:
    transit packet totals: receive 24, send 21
    transit byte totals:   receive 2064, send 1344
    transit packet drops:  receive 0, seq error 0, send 0

VPLS
----
es-103-glsfb#sh vfi
Legend: RT=Route-target, S=Split-horizon, Y=Yes, N=No

VFI name: ME002555, state: up, type: multipoint signaling: LDP
  VPN ID: 116, VPLS-ID: 9930:116
  RD: 9930:116, RT: 9930:116
  Bridge-Domain 116 attachment circuits:
    Vlan116  
  Neighbors connected via pseudowires:
  Peer Address     VC ID        Discovered Router ID    S
  200.28.9.146     116          200.28.0.120            Y

es-103-glsfb#sh mpls l2transport vc 116 detail 
Local interface: VFI ME002555 vfi up
  Interworking type is Ethernet
  Destination address: 200.28.0.120, VC ID: 116, VC status: down
    Last error: Local access circuit is not ready for label advertise
  Next hop PE address: 200.28.9.146
    Output interface: none, imposed label stack {}
    Preferred path: not configured  
    Default path: no route
    No adjacency
  Create time: 02:07:55, last status change time: 02:07:55
  Signaling protocol: LDP, peer unknown 
    Targeted Hello: 200.28.0.15(LDP Id) -> 200.28.9.146, LDP is DOWN, no binding
    Status TLV support (local/remote)   : enabled/None (no remote binding)
      LDP route watch                   : disabled
      Label/status state machine        : local standby, AC-ready, LnuRnd
      Last local dataplane   status rcvd: No fault
      Last BFD dataplane     status rcvd: Not sent
      Last BFD peer monitor  status rcvd: No fault
      Last local AC  circuit status rcvd: No fault
      Last local AC  circuit status sent: Not sent
      Last local LDP TLV     status sent: None
      Last remote LDP TLV    status rcvd: None (no remote binding)
      Last remote LDP ADJ    status rcvd: None (no remote binding)
    MPLS VC labels: local 23, remote unassigned 
    AGI: type 1, len 8, 000A 26CA 0000 0074
    Local AII: type 1, len 4, DF1C 000F (200.28.0.15)
    Remote AII: type 1, len 4, DF1C 0078 (200.28.0.120)
    Group ID: local n/a, remote unknown
    MTU: local 9178, remote unknown
    Remote interface description: 
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  Dataplane:
    SSM segment/switch IDs: 0/0 (used), PWID: 14
  VC statistics:
    transit packet totals: receive 0, send 0
    transit byte totals:   receive 0, send 0
    transit packet drops:  receive 0, seq error 0, send 0

I'm getting the account team into the loop but if anyone has encountered this scenario before and managed to find the answer, that would be most helpful.

ihsan