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Verifying Your Work

To verify proper operation of Layer 2 circuits, use the following commands:

ping mpls l2circuit interface interface-name
ping mpls l2circuit virtual-circuit virtual-circuit-id neighbor ip-address
show l2circuit connections

Options: [brief] | [down] | [extensive] | [history] | [instance] | [local-site] | [remote-site] |[status] | [summary] | [up] | [up-down]
show ldp database
show route table

The following section shows the output of these commands used with the configuration example:

user@PE1> show l2circuit connections

Layer-2 Circuit Connections:

Legend for connection status (St)
EI -- encapsulation invalid      NP -- interface not present
MM -- mtu mismatch               Dn -- down
EM -- encapsulation mismatch     VC-Dn -- Virtual circuit Down
CM -- control-word mismatch      Up -- operational
OL -- no outgoing label          XX -- unknown
NC -- intf encaps not CCC/TCC

Legend for interface status
Up -- operational
Dn -- down

Neighbor: 10.255.145.130
     Interface                 Type  St     Time last up          # Up trans
     so-0/0/0.0 (vc 1)         rmt   Up     Jan 26 14:13:54 2003           1
       Local interface: so-0/0/0.0, Status: Up, Encapsulation: PPP
       Remote PE: 10.255.145.130, Negotiated control-word: Yes (Null)
       Incoming label: 100000, Outgoing label: 100000

user@PE1>  show ldp database l2circuit
Input label database, 10.255.145.126:0--10.255.145.130:0
   Label     Prefix
  100000     L2CKT CtrlWord PPP VC 1

Output label database, 10.255.145.126:0--10.255.145.130:0
   Label     Prefix
  100000     L2CKT CtrlWord PPP VC 1

user@PE1> show ldp database l2circuit detail
Input label database, 10.255.145.126:0--10.255.145.130:0
   Label     Prefix
  100000     L2CKT CtrlWord PPP VC 1
             State: Active
             Age: 5:37

Output label database, 10.255.145.126:0--10.255.145.130:0
   Label     Prefix
  100000     L2CKT CtrlWord PPP VC 1
             State: Active
             Age: 5:37

user@PE1> show route table mpls.0

mpls.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
Restart Complete
+ = Active Route, - = Last Active, * = Both
0                  *[MPLS/0] 00:05:04, metric 1
                       Receive
1                  *[MPLS/0] 00:05:04, metric 1
                       Receive
2                  *[MPLS/0] 00:05:04, metric 1
                       Receive
100000             *[L2VPN/7] 00:04:50
                     > via so-0/0/0.0, Pop       Offset: 4
100016             *[LDP/9] 00:04:52, metric 1
                     > via so-0/1/0.0, Pop
100016(S=0)        *[LDP/9] 00:04:52, metric 1
                     > via so-0/1/0.0, Pop
so-0/0/0.0         *[L2VPN/7] 00:04:50
                     > via so-0/1/0.0, Push 100000 Offset: -4

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