To display the MPLS out segment table that shows the label assignment for MPLS traffic leaving the LSR, enter the show mpls out-segment-table command.

vyatta@vyatta:~$ show mpls out-segment-table 
      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: Push

       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: Push