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

Ihsan Junaidi Ibrahim ihsan.junaidi at gmail.com
Wed May 9 21:36:02 EDT 2012


Arie,

Both boxes are on 15.2S with the exception of PE1 having the bootloader version of EY1 while PE2 is on EY2.

The issue I'm facing with VPLS is only happening when using BGP autodiscovery.

>From the output that I'm seeing on PE1, it is failing to establish a targeted LDP session with the PE2 lo0 next-hop router which the physical interface IP is correctly determined i.e. 200.28.9.246.

On PE2, it correctly detects PE1's next-hop router lo0.

es-03-akhmw#sh mpls l2transport vc 116 det
Local interface: VFI ME002617 vfi up
  Interworking type is Ethernet
  Destination address: 200.28.0.15, VC ID: 116, VC status: down
    Last error: Local access circuit is not ready for label advertise
  Next hop PE address: 200.28.2.242
    Output interface: none, imposed label stack {}
    Preferred path: not configured  
    Default path: no route
    No adjacency
  Create time: 13:08:55, last status change time: 00:00:09
  Signaling protocol: LDP, peer 200.28.0.16:0 up
    Targeted Hello: 200.28.0.120(LDP Id) -> 200.28.2.242, LDP is DOWN, no binding
    Status TLV support (local/remote)   : enabled/None (no remote binding)
      LDP route watch                   : disabled
      Label/status state machine        : local ready, LruRnd
      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: No fault
      Last remote LDP TLV    status rcvd: None (no remote binding)
      Last remote LDP ADJ    status rcvd: None (no remote binding)
    MPLS VC labels: local 637, remote unassigned 
    AGI: type 1, len 8, 000A 26CA 0000 0074
    Local AII: type 1, len 4, DF1C 0078 (200.28.0.120)
    Remote AII: type 1, len 4, DF1C 000F (200.28.0.15)
    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: 2
  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

Manual VPLS provisioning and EoMPLS work as advertised.

ihsan

On May 10, 2012, at 6:44 AM, Arie Vayner (avayner) wrote:

> Ihsan,
> 
> On which IOS version are you?
> This should work on 15.2S
> 
> Arie
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ihsan Junaidi
> Ibrahim
> Sent: Wednesday, May 09, 2012 07:37
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] VFI LDP transport signaled down (ME3600x)
> 
> 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
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