[c-nsp] Cisco 7609-S - ME3600 / xconnect up - ac down

Antonis Vosdoganis avosdo at gmail.com
Mon Apr 8 09:51:06 EDT 2013


Hello

 We are trying to set up a pseudowire connection between a Cisco 7609-S and
ME3600.

When xconnect is applied on physical interface or service instance there is
no problem.

When we are moving to interface vlan xconnect is up but ac is down.

Cisco 7609 is using a 7600-ES+20G3CXL gigabit port NOT RSP720 and IOS
version c7600rsp72043-advipservicesk9-mz.153-1.S.bin

ME3600 is using IOS version me360x-universalk9-mz.153-1.S1.bin

We have successfully set up the same scenario with 2 ME3600.

Please check attached files for sample configurations and show - debugs
commands.

 Regards

 Antonis.
-------------- next part --------------
ME3600#show mpls l2transport binding 20
  Destination Address: 172.16.0.1,VC ID: 20
    Local Label:  17
        Cbit: 1,    VC Type: Ethernet,    GroupID: 0
        MTU: 1500,   Interface Desc: n/a
        VCCV: CC Type: CW [1], RA [2]
              CV Type: LSPV [2], BFD/Raw [5]
    Remote Label: 125
        Cbit: 1,    VC Type: Ethernet,    GroupID: 0
        MTU: 1500,   Interface Desc: n/a
        VCCV: CC Type: CW [1], RA [2], TTL [3]
              CV Type: LSPV [2], BFD/Raw [5]


7609-S#show mpls l2transport binding 20
  Destination Address: 172.18.0.17,VC ID: 20
    Local Label:  125
        Cbit: 1,    VC Type: Ethernet,    GroupID: 0
        MTU: 1500,   Interface Desc: n/a
        VCCV: CC Type: CW [1], RA [2], TTL [3]
              CV Type: LSPV [2], BFD/Raw [5]
    Remote Label: 17
        Cbit: 1,    VC Type: Ethernet,    GroupID: 0
        MTU: 1500,   Interface Desc: n/a
        VCCV: CC Type: CW [1], RA [2]
              CV Type: LSPV [2], BFD/Raw [5]


7609-S#debug mpls l2transport signaling message detail 
AToM LDP message detail debugging is on

Apr  8 12:17:47.284: %LDP-5-NBRCHG: LDP Neighbor 172.18.0.17:0 (1) is UP
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]: Sending label mapping msg
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   VC ID     20, label 125
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   Group     0
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   PW Status 0x0(0x1) [UP]
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]: Received label mapping msg, id 62179, GR instance 1
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   VC ID     20, label 129
7609-S#
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   Group     0
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:17:47.296: AToM LDP[172.18.0.17]:   PW Status 0x0(0x1) [UP]
Apr  8 12:17:47.400: AToM LDP[172.18.0.17]: Sending notif msg
Apr  8 12:17:47.400: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:17:47.400: AToM LDP[172.18.0.17]:   VC ID     20, label 125
Apr  8 12:17:47.400: AToM LDP[172.18.0.17]:   Group     0
Apr  8 12:17:47.400: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:17:47.400: AToM LDP[172.18.0.17]:   PW Status 0x6(0xC) [DOWN AC(rx/tx faults)]
7609-S#
Apr  8 12:18:02.407: AToM LDP[172.18.0.17]: Sending notif msg
Apr  8 12:18:02.407: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:18:02.407: AToM LDP[172.18.0.17]:   VC ID     20, label 125
Apr  8 12:18:02.407: AToM LDP[172.18.0.17]:   Group     0
Apr  8 12:18:02.407: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:18:02.407: AToM LDP[172.18.0.17]:   PW Status 0x0(0x1) [UP]
Apr  8 12:18:02.515: AToM LDP[172.18.0.17]: Sending notif msg
Apr  8 12:18:02.515: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:18:02.515: AToM LDP[172.18.0.17]:   VC ID     20, label 125
Apr  8 12:18:02.515: AToM LDP[172.18.0.17]:   Group     0
7609-S#
Apr  8 12:18:02.515: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:18:02.515: AToM LDP[172.18.0.17]:   PW Status 0x6(0xC) [DOWN AC(rx/tx faults)]
7609-S#
Apr  8 12:18:17.523: AToM LDP[172.18.0.17]: Sending notif msg
Apr  8 12:18:17.523: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:18:17.523: AToM LDP[172.18.0.17]:   VC ID     20, label 125
Apr  8 12:18:17.523: AToM LDP[172.18.0.17]:   Group     0
Apr  8 12:18:17.523: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:18:17.523: AToM LDP[172.18.0.17]:   PW Status 0x0(0x1) [UP]
Apr  8 12:18:17.627: AToM LDP[172.18.0.17]: Sending notif msg
Apr  8 12:18:17.627: AToM LDP[172.18.0.17]:   VC Type   5, c-bit, mtu 1500
Apr  8 12:18:17.627: AToM LDP[172.18.0.17]:   VC ID     20, label 125
Apr  8 12:18:17.627: AToM LDP[172.18.0.17]:   Group     0
7609-S#
Apr  8 12:18:17.627: AToM LDP[172.18.0.17]:   Status    0x28 [PW Status]
Apr  8 12:18:17.627: AToM LDP[172.18.0.17]:   PW Status 0x6(0xC) [DOWN AC(rx/tx faults)]





7609-S#debug acircuit event
Attachment Circuit events debugging is on
7609-S#debug acircuit error
Attachment Circuit errors debugging is on


Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: Retry circuit setup
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .. Features not supported
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: . Pri: Retry setup switching
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .. Pri: Setup switching
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ... Notify AC of remote status, DOWN
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ... i/f 34 peer seg type AToM, switch type: AC to ATOM
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ...   i/w Eth plat-idx 80148003 if-num 33 peer-vlan 0
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ...   outer 20 inner 0 etype 8100 .1qAny 0
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ...   encap len 4
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ... Pri: Setup switching, UP, sw 6272
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .... Pri: Completed switching, sw 6272 seg 6435, segment type 3
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .... Set flags: None -> DpUp[0x40]
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .... i/f 34 peer seg type AToM, switch type: AC to ATOM
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .... Notify AC of remote status, UP
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .. Complete circuit setup
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ... State Provisioning->Idle
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ... Received remote status, UP in Idle
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .... State Idle->Dn-Rem-Connecting
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ... Circuit up notification
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: .... Circuit retry
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ..... if-up handler, inform ACMgr
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ...... State Dn-Rem-Connecting->Connected
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: ...... Pri: Update seg 6435, UP
Apr  8 12:21:37.158: AC: Retry queue, processed 1 entries, no remaining entries
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: Receive <Circuit Status> msg
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]: Circuit attributes, P2P to VPWS:
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]:  Status: UP (0x1)
Apr  8 12:21:37.158: AC VLAN[Vl20, 20]:  Alarm: 0x0
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: Pri: switching down event, tearing down circuit
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: . Pri: Deallocate seg 6435
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: .. i/f 34 peer seg type AToM, switch type: AC to ATOM
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: .. Clr flags: DpUp -> None[0x0]
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: . IDB down
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: .. State Connected->Dn-Rem-Connecting
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: .. Pri: Update seg 0, DOWN
7609-S#
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: . State Dn-Rem-Connecting->Provisioning
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: . Pri: Add to retry queue
Apr  8 12:21:37.266: AC: Added circuit to retry queue, type 5, id 20, idb Vl20
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: Receive <Circuit Status> msg
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]: Circuit attributes, P2P to VPWS:
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]:  Status: DOWN AC(rx/tx faults) (0xC)
Apr  8 12:21:37.266: AC VLAN[Vl20, 20]:  Alarm: 0x0



7609-S#debug xconnect error 
Xconnect author errors debugging is on
7609-S#debug xconnect event 
Xconnect author events debugging is on

Apr  8 12:24:09.473: XC VPWS[3900001A:Vl20:20]: Update, i/f 34
Apr  8 12:24:09.473: XC VPWS[3900001A:Vl20:20]: Circuit attributes from client:
Apr  8 12:24:09.473: XC VPWS[3900001A:Vl20:20]:  Status: UP (0x1)
Apr  8 12:24:09.473: XC VPWS[3900001A:Vl20:20]:  Alarm: 0x0
Apr  8 12:24:09.473: XC VPWS[3900001A:Vl20:20]: Received status change, status is UP
Apr  8 12:24:09.473: XC VPWS[3900001A:172.18.0.17:20]: Circuit attributes to client:
Apr  8 12:24:09.473: XC VPWS[3900001A:172.18.0.17:20]:  Status: UP (0x1)
Apr  8 12:24:09.473: XC VPWS[3900001A:172.18.0.17:20]:  Alarm: 0x0
Apr  8 12:24:09.473: XC: MPLS peer 172.18.0.17 vcid 20, VC state UP
Apr  8 12:24:09.473: [172.18.0.17, 20]: Notifying PWMIB that xconnect segment is UP

Apr  8 12:24:09.580: XC VPWS[3900001A:Vl20:20]: Update, i/f 34
Apr  8 12:24:09.580: XC VPWS[3900001A:Vl20:20]: Circuit attributes from client:
Apr  8 12:24:09.580: XC VPWS[3900001A:Vl20:20]:  Status: DOWN AC(rx/tx faults) (0xC)
Apr  8 12:24:09.580: XC VPWS[3900001A:Vl20:20]:  Alarm: 0x0
Apr  8 12:24:09.580: XC VPWS[3900001A:Vl20:20]: Received status change, status is DOWN AC(rx/tx faults)
Apr  8 12:24:09.580: XC VPWS[3900001A:172.18.0.17:20]: Circuit attributes to client:
Apr  8 12:24:09.580: XC VPWS[3900001A:172.18.0.17:20]:  Status: DOWN AC(rx/tx faults) (0xC)
7609-S#
Apr  8 12:24:09.580: XC VPWS[3900001A:172.18.0.17:20]:  Alarm: 0x0
Apr  8 12:24:09.580: XC: MPLS peer 172.18.0.17 vcid 20, VC state DOWN, Loc AC Err
Apr  8 12:24:09.580: [172.18.0.17, 20]: Notifying PWMIB that xconnect segment is DOWN

7609-S#
Apr  8 12:24:24.573: XC VPWS[3900001A:Vl20:20]: Update, i/f 34
Apr  8 12:24:24.573: XC VPWS[3900001A:Vl20:20]: Circuit attributes from client:
Apr  8 12:24:24.573: XC VPWS[3900001A:Vl20:20]:  Status: UP (0x1)
Apr  8 12:24:24.573: XC VPWS[3900001A:Vl20:20]:  Alarm: 0x0
Apr  8 12:24:24.573: XC VPWS[3900001A:Vl20:20]: Received status change, status is UP
Apr  8 12:24:24.573: XC VPWS[3900001A:172.18.0.17:20]: Circuit attributes to client:
Apr  8 12:24:24.573: XC VPWS[3900001A:172.18.0.17:20]:  Status: UP (0x1)
Apr  8 12:24:24.573: XC VPWS[3900001A:172.18.0.17:20]:  Alarm: 0x0
Apr  8 12:24:24.573: XC: MPLS peer 172.18.0.17 vcid 20, VC state UP
Apr  8 12:24:24.573: [172.18.0.17, 20]: Notifying PWMIB that xconnect segment is UP

Apr  8 12:24:24.681: XC VPWS[3900001A:Vl20:20]: Update, i/f 34
Apr  8 12:24:24.681: XC VPWS[3900001A:Vl20:20]: Circuit attributes from client:
Apr  8 12:24:24.681: XC VPWS[3900001A:Vl20:20]:  Status: DOWN AC(rx/tx faults) (0xC)
Apr  8 12:24:24.681: XC VPWS[3900001A:Vl20:20]:  Alarm: 0x0
Apr  8 12:24:24.681: XC VPWS[3900001A:Vl20:20]: Received status change, status is DOWN AC(rx/tx faults)
Apr  8 12:24:24.681: XC VPWS[3900001A:172.18.0.17:20]: Circuit attributes to client:
Apr  8 12:24:24.681: XC VPWS[3900001A:172.18.0.17:20]:  Status: DOWN AC(rx/tx faults) (0xC)
7609-S#
Apr  8 12:24:24.681: XC VPWS[3900001A:172.18.0.17:20]:  Alarm: 0x0
Apr  8 12:24:24.681: XC: MPLS peer 172.18.0.17 vcid 20, VC state DOWN, Loc AC Err
Apr  8 12:24:24.681: [172.18.0.17, 20]: Notifying PWMIB that xconnect segment is DOWN




-------------- next part --------------
CISCO 7609-S

interface GigabitEthernet1/18
 description TEST_MPLS_PSEUDOWIRE
 no ip address
 load-interval 30
 speed 1000
 no keepalive
 no cdp enable
 service instance 20 ethernet
  encapsulation untagged
  xconnect 172.18.0.17 20 encapsulation mpls

7609-S#show mpls l2transport vc 20

Local intf     Local circuit              Dest address    VC ID      Status
-------------  -------------------------- --------------- ---------- ----------
Gi1/18         Ethernet:20                172.18.0.17     20         UP        


7609-S#show mpls l2transport vc 20 detail
Local interface: Gi1/18 up, line protocol up, Ethernet:20 up
  Destination address: 172.18.0.17, VC ID: 20, VC status: up
    Output interface: Vl3019, imposed label stack {99 17}
    Preferred path: not configured  
    Default path: active
    Next hop: 172.16.1.27
  Create time: 00:00:48, last status change time: 00:00:48
    Last label FSM state change time: 00:00:48
  Signaling protocol: LDP, peer 172.18.0.17:0 up
    Targeted Hello: 172.16.0.1(LDP Id) -> 172.18.0.17, LDP is UP
    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 118, remote 17 
    Group ID: local 0, remote 0
    MTU: local 1500, remote 1500
    Remote interface description: 
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  SSO Descriptor: 172.18.0.17/20, local label: 118
  Dataplane:
    SSM segment/switch IDs: 6270/6269 (used), PWID: 9
  VC statistics:
    transit packet totals: receive 0, send 5
    transit byte totals:   receive 0, send 370
    transit packet drops:  receive 0, seq error 0, send 0

7609-S#show mpls forwarding-table 
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop    
Label      Label      or Tunnel Id     Switched      interface              
118        No Label   l2ckt(9)         254           Gi1/18     point2point 














ME3600

interface GigabitEthernet0/23
 switchport trunk allowed vlan none
 switchport mode trunk
 service instance 20 ethernet
  encapsulation untagged
  bridge-domain 20

interface Vlan20
 no ip address
 xconnect 172.16.0.1 20 encapsulation mpls

ME3600#show mpls l2transport vc 20 

Local intf     Local circuit              Dest address    VC ID      Status
-------------  -------------------------- --------------- ---------- ----------
Vl20           Eth VLAN 20                172.16.0.1      20         UP        

ME3600#show mpls l2transport vc 20 detail 
Local interface: Vl20 up, line protocol up, Eth VLAN 20 up
  Interworking type is Ethernet
  Destination address: 172.16.0.1, VC ID: 20, VC status: up
    Output interface: Vl4000, imposed label stack {77 118}
    Preferred path: not configured  
    Default path: active
    Next hop: 172.18.1.36
  Create time: 00:50:33, last status change time: 00:07:53
    Last label FSM state change time: 00:07:53
  Signaling protocol: LDP, peer 172.16.0.1:0 up
    Targeted Hello: 172.18.0.17(LDP Id) -> 172.16.0.1, LDP is UP
    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 17, remote 118 
    Group ID: local 0, remote 0
    MTU: local 1500, remote 1500
    Remote interface description: TEST_MPLS_PSEUDOWIRE
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  Dataplane:
    SSM segment/switch IDs: 12507/8405 (used), PWID: 14
  VC statistics:
    transit packet totals: receive 71, send 6
    transit byte totals:   receive 9378, send 1542
    transit packet drops:  receive 0, seq error 0, send 0


-------------- next part --------------
7609-S 
Apr  8 11:39:39.848: %LDP-5-NBRCHG: LDP Neighbor 172.18.0.17:0 (1) is UP

ME3600
Apr  8 11:39:40.320: %LDP-5-NBRCHG: LDP Neighbor 172.16.0.1:0 (3) is UP




7609-S

interface GigabitEthernet1/18
 description TEST_MPLS_PSEUDOWIRE
 no ip address
 load-interval 30
 speed 1000
 no keepalive
 no cdp enable
 service instance 20 ethernet
  encapsulation untagged
  bridge-domain 20

interface Vlan20
 no ip address
 xconnect 172.18.0.17 20 encapsulation mpls


7609-S#show mpls l2transport vc 20

Local intf     Local circuit              Dest address    VC ID      Status
-------------  -------------------------- --------------- ---------- ----------
Vl20           Eth VLAN 20                172.18.0.17     20         DOWN      


7609-S#show mpls l2transport vc 20 detail
Local interface: Vl20 up, line protocol up, Eth VLAN 20 down
  Interworking type is Ethernet
  Destination address: 172.18.0.17, VC ID: 20, VC status: down
    Last error: Local peer access circuit is down
    Output interface: none, imposed label stack {}
    Preferred path: not configured  
    Default path: active
    No adjacency
  Create time: 00:56:08, last status change time: 00:00:01
    Last label FSM state change time: 00:18:02
  Signaling protocol: LDP, peer 172.18.0.17:0 up
    Targeted Hello: 172.16.0.1(LDP Id) -> 172.18.0.17, LDP is UP
    Status TLV support (local/remote)   : enabled/supported
      LDP route watch                   : enabled
      Label/status state machine        : established, LrdRru
      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: DOWN AC(rx/tx faults)
      Last local AC  circuit status sent: No fault
      Last local PW i/f circ status rcvd: No fault
      Last local LDP TLV     status sent: DOWN AC(rx/tx faults)
      Last remote LDP TLV    status rcvd: No fault
      Last remote LDP ADJ    status rcvd: No fault
    MPLS VC labels: local 125, remote 129 
    Group ID: local 0, remote 0
    MTU: local 1500, remote 1500
    Remote interface description: 
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  SSO Descriptor: 172.18.0.17/20, local label: 125
  Dataplane:
    SSM segment/switch IDs: 10516/6272 (used), PWID: 9
  VC statistics:
    transit packet totals: receive 3, send 0
    transit byte totals:   receive 762, send 0
    transit packet drops:  receive 0, seq error 0, send 0









ME3600

interface GigabitEthernet0/23
 switchport trunk allowed vlan none
 switchport mode trunk
 service instance 20 ethernet
  encapsulation untagged
  bridge-domain 20

interface Vlan20
 no ip address
 xconnect 172.16.0.1 20 encapsulation mpls

ME3600#show mpls l2transport vc 20

Local intf     Local circuit              Dest address    VC ID      Status
-------------  -------------------------- --------------- ---------- ----------
Vl20           Eth VLAN 20                172.16.0.1      20         DOWN      


ME3600#show mpls l2transport vc 20 detail 
Local interface: Vl20 up, line protocol up, Eth VLAN 20 up
  Interworking type is Ethernet
  Destination address: 172.16.0.1, VC ID: 20, VC status: down
    Last error: Remote peer access circuit is down
    Output interface: Vl4000, imposed label stack {77 125}
    Preferred path: not configured  
    Default path: active
    Next hop: 172.18.1.36
  Create time: 00:55:02, last status change time: 00:00:09
    Last label FSM state change time: 00:02:43
  Signaling protocol: LDP, peer 172.16.0.1:0 up
    Targeted Hello: 172.18.0.17(LDP Id) -> 172.16.0.1, LDP is UP
    Status TLV support (local/remote)   : enabled/supported
      LDP route watch                   : enabled
      Label/status state machine        : established, LruRrd
      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: DOWN AC(rx/tx faults)
      Last local PW i/f circ status rcvd: No fault
      Last local LDP TLV     status sent: No fault
      Last remote LDP TLV    status rcvd: DOWN AC(rx/tx faults)
      Last remote LDP ADJ    status rcvd: No fault
    MPLS VC labels: local 17, remote 125 
    Group ID: local 0, remote 0
    MTU: local 1500, remote 1500
    Remote interface description: 
  Sequencing: receive disabled, send disabled
  Control Word: On (configured: autosense)
  Dataplane:
    SSM segment/switch IDs: 12508/8405 (used), PWID: 14
  VC statistics:
    transit packet totals: receive 1, send 7
    transit byte totals:   receive 90, send 1802
    transit packet drops:  receive 0, seq error 0, send 0




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