Show Egress MPLS Label Stack

It is possible to show the egress MPLS label stack on a Nokia LSR, similar to "show cef exact-route" on Cisco IOS.

Below in the example a Nokia PE is connected to two P nodes with ECMP routing so multiple paths are shown:

*A:sr12.lab# show router fib 1 10.0.0.40/32 extensive
===============================================================================
FIB Display (Router: Base)
===============================================================================
Dest Prefix             : 10.0.0.40/32
  Protocol              : ISIS
  Installed             : Y
  Next-Hop              : 10.0.130.198 
    Interface           : base_pr4.lab_1
    QoS                 : Priority=n/c, FC=n/c
    Source-Class        : 0
    Dest-Class          : 0
    ECMP-Weight         : 1
  Next-Hop              : 10.0.134.226 
    Interface           : base_pr2.lab_1
    QoS                 : Priority=n/c, FC=n/c
    Source-Class        : 0
    Dest-Class          : 0
    ECMP-Weight         : 1
===============================================================================
Total Entries : 1
===============================================================================



*A:sr12.lab# show router tunnel-table 10.0.0.40/32
===============================================================================
IPv4 Tunnel Table (Router: Base)
===============================================================================
Destination       Owner     Encap TunnelId  Pref     Nexthop        Metric
-------------------------------------------------------------------------------
10.0.0.40/32   sdp       MPLS  25540     5        10.0.0.40   0
10.0.0.40/32   ldp       MPLS  104914    9        10.0.130.198 200000
10.0.0.40/32   ldp       MPLS  104914    9        10.0.134.226 200000
-------------------------------------------------------------------------------
Flags: B = BGP backup route available
       E = inactive best-external BGP route
===============================================================================



*A:sr12.lab# show router tunnel-table 10.0.0.40/32 detail
===============================================================================
Tunnel Table (Router: Base)
===============================================================================
Destination      : 10.0.0.40/32
NextHop          : 10.0.0.40
Tunnel Flags     : (Not Specified)
Age              : 20h20m22s
CBF Classes      : (Not Specified)
Owner            : sdp                  Encap            : MPLS
Tunnel ID        : 25540                Preference       : 5
Tunnel Label     :  -                   Tunnel Metric    : 0
Tunnel MTU       : 8192                 Max Label Stack  : 1
-------------------------------------------------------------------------------
Destination      : 10.0.0.40/32
NextHop          : 10.0.130.198
Tunnel Flags     : (Not Specified)
Age              : 18h33m42s
CBF Classes      : (Not Specified)
Owner            : ldp                  Encap            : MPLS
Tunnel ID        : 104914               Preference       : 9
Tunnel Label     : 99145                Tunnel Metric    : 200000
Tunnel MTU       : 8204                 Max Label Stack  : 1
-------------------------------------------------------------------------------
Destination      : 10.0.0.40/32
NextHop          : 10.0.134.226
Tunnel Flags     : (Not Specified)
Age              : 18h33m42s
CBF Classes      : (Not Specified)
Owner            : ldp                  Encap            : MPLS
Tunnel ID        : 104914               Preference       : 9
Tunnel Label     : 24031                Tunnel Metric    : 200000
Tunnel MTU       : 8204                 Max Label Stack  : 1
-------------------------------------------------------------------------------
Number of tunnel-table entries          : 3
Number of tunnel-table entries with LFA : 0
===============================================================================

It can be seen that the egress transport label will be 99145 when sending traffic via the P node with IP address 10.0.130.198 and label 24031 will be used when sending the traffic via the P node with IP 10.0.134.226.

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