Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

show mpls in-segment-table

Displays the segment table for the incoming packet.

show mpls in-segment-table

Operational mode

Use this command to display the segment table for the incoming packet and show the incoming label-to-NHLFE mapping.

The show mpls in-segment-table command displays the following information:

Output field Description
Owner: Protocol, such as LDP
# of pops: Number of pops
fec: IP prefix for the FEC
ILM-ID: Internal index of the label table
Cross connect ix: Internal cross connect index
in intf: Ingress router
in label: Label on the packet from the ingress router
out-segment ix: Internal out segment index
Owner: Protocol, such as LDP
Persistent: Yes or No
Admin Status: Up or Down
Oper Status: Up or Down
Out-segment with ix: Internal index of the out segment
owner: Protocol owner
out intf: Egress router
out label: Label on the packet for the next router (N/A for the egress router)
Nexthop addr: Address of the next-hop router
cross connect ix: Internal index of the cross connect
op code: Swap or Pop

The following example shows how to display the incoming segment table and the incoming label-to-NHLFE mapping by using the show mpls in-segment-table command on the intermediate LSR.

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