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MPLS XConnect on 3650

m-geisler
Level 1
Level 1

Hello Everyone,

Just trying to get an xconnect between two 3650 to work, but I can not ping between the customer sides.

I think the MPLS/LDP part is fine as it shows UP on both sides:

R#sh mpls l2t vc    

Local intf     Local circuit              Dest address    VC ID      Status
-------------  -------------------------- --------------- ---------- ----------
Vl313          Eth VLAN 313               10.3.20.254     13         UP   

     
and (the one PE):

R#ping mpls pseudowire 10.3.20.254 13
Sending 5, 72-byte MPLS Echos to 10.3.20.254,
     timeout is 2 seconds, send interval is 0 msec:

Codes: '!' - success, '<...>
Type escape sequence to abort.
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/8 ms
 Total Time Elapsed 31 ms
just in case here is the xconnect config:

R#sh run int gi 1/0/11
Building configuration...

Current configuration : 76 bytes
!
interface GigabitEthernet1/0/11

 Description link to Customer
 switchport mode trunk
 no keepalive
end

R#sh run int vlan 313
Building configuration...

Current configuration : 153 bytes
!
interface Vlan313
 no ip address
 xconnect 10.3.20.254 13 encapsulation mpls
  remote circuit id 13
  mtu 1500
  remote link failure notification
end

and the Customer configuration:

interface GigabitEthernet0/0.313
encapsulation dot1Q 313
ip address 10.14.0.14 255.255.255.0
end

The configuration on both sides is symmetric and a ping from the Customer increases both physical interface counts, as does the vc statistic

(sorry the other PE)

N#sh mpls l2t vc 13 det
Local interface: Vl313 up, line protocol up, Eth VLAN 313 up
  Interworking type is Ethernet
  Destination address: 10.32.60.254, VC ID: 13, VC status: up
    Output interface: Gi1/0/4, imposed label stack {20 26}
    Preferred path: not configured  
    Default path: active
    Next hop: 10.3.20.246
  Create time: 00:56:18, last status change time: 00:56:18
    Last label FSM state change time: 00:56:18
  Signaling protocol: LDP, peer 10.32.60.254:0 up
    Targeted Hello: 10.3.20.254(LDP Id) -> 10.32.60.254, LDP is UP
    Graceful restart: not configured and not enabled
    Non stop routing: not configured and not enabled
    Status TLV support (local/remote)   : enabled/supported
      LDP route watch                   : enabled
      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 PW i/f circ status rcvd: 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 26, remote 26
    Group ID: local n/a, remote 0
    MTU: local 1500, remote 1500
    Remote interface description:
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  SSO Descriptor: 10.32.60.254/13, local label: 26
  Dataplane:
    SSM segment/switch IDs: 8217/4119 (used), PWID: 3
  VC statistics:
    transit packet totals: receive 0, send 10
    transit byte totals:   receive 0, send 900
    transit packet drops:  receive 0, seq error 0, send 0

Thanks for your time and help.

Mike

1 Reply 1

Vinit Jain
Cisco Employee
Cisco Employee
Hi Mike
Could you please share the below outputs from both the switches in separate files:
- show version | in image
- show run
- show mpls l2 vc 13 det
From the above outputs, i could see that the send counters on the VC incrementing on the switch N but no receive counters. Possibly the send counters under the vc might not be incrementing on switch R. There might be problem with the encap on R side. But before that, i would like to look at the above requested logs.
Thanks
--Vinit