To display the MPLS incoming segment table, enter the show mpls in-segment-table command.

vyatta@vyatta:~$ show mpls in-segment-table 
  Owner: LDP, # of pops: 1, fec: 3.3.3.3/32, ILM-ID: 23
     Cross connect ix: 1, in intf: dp0p1s3 in label: 52481 out-segment ix: 12
      Owner: LDP, Persistent: No, Admin Status: Down, Oper Status: Up
       Out-segment with ix: 12, owner: LDP, out intf: dp0p1s1, out label: 3
    Nexthop addr: 192.166.3.2        cross connect ix: 1, op code: Swap

  Owner: LDP, # of pops: 1, fec: 10.0.0.0/8, ILM-ID: 17
     Cross connect ix: 3, in intf: dp0p1s1 in label: 52484 out-segment ix: 4
      Owner: LDP, Persistent: No, Admin Status: Down, Oper Status: Up
       Out-segment with ix: 4, owner: LDP, out intf: dp0s4, out label: N/A
    Nexthop addr: 192.168.252.253        cross connect ix: 3, op code: Pop