Display IS-IS Logical Interfaces

Use the following procedure to display the Intermediate-System-to-Intermediate-System (IS-IS) logical interfaces configured on the switch.

Procedure

  1. To enter User EXEC mode, log on to the switch.
  2. Display the IS-IS logical interfaces:

    show isis logical-interface [name]

Examples

Example of a Layer 2 Core

Switch:1> show isis logical-interface
========================================================================================
 						ISIS Logical Interfaces
========================================================================================
IFIDX  NAME   ENCAP         L2_INFO                  TUNNEL     L3_TUNNEL_NEXT_HOP_INFO
              TYPE          PORT/MLT  VIDS(PRIMARY)  DEST-IP     PORT/MLT    VLAN   VRF
----------------------------------------------------------------------------------------
1      --     L2-P2P-VID    Port2/40  101,201(101)    --           --        --     --
2      --     L2-P2P-VID    Port1/3   102,202(102)    --           --        --     --
----------------------------------------------------------------------------------------
 2 out of 2 Total Num of Logical ISIS interfaces 
----------------------------------------------------------------------------------------

Example of a Layer 3 Core

Switch:1> show isis logical-interface
========================================================================================
 						ISIS Logical Interfaces
========================================================================================
IFIDX  NAME   ENCAP         L2_INFO                  TUNNEL     L3_TUNNEL_NEXT_HOP_INFO
              TYPE          PORT/MLT  VIDS(PRIMARY)  DEST-IP     PORT/MLT   VLAN  VRF
----------------------------------------------------------------------------------------
1      SPBoIP_T1    IP       --         --      41.41.41.41       MLT10     2     vrf24 
2      SPBoIP_T2    IP       --         --      42.42.42.42       MLT10     2     vrf24 
3      SPBoIP_4K5   IP       --         --      187.187.187.187   MLT10     2     vrf24 
----------------------------------------------------------------------------------------
 3 out of 3 Total Num of Logical ISIS interfaces 
----------------------------------------------------------------------------------------

Example showing the status of BFD configurations on the IS-IS Logical interface

Switch:1> show isis logical-interface
==============================================================================================
					ISIS Logical Interfaces
==============================================================================================
IFIDX  NAME       ENCAP   L2_INFO                  TUNNEL     L3_TUNNEL_NEXT_HOP_INFO  BFD
                  TYPE    PORT/MLT  VIDS(PRIMARY)  DEST-IP     PORT/MLT   VLAN   VRF   STATUS
-----------------------------------------------------------------------------------------------
1      tunnel01   IP      --        --             198.51.100.1  Port1/2  123    vrf30 disabled
2      tunnel102  IP      --        --             198.51.100.2  Port1/3  345    vrf20 disabled
-----------------------------------------------------------------------------------------------
 2 out of 2 Total Num of Logical ISIS interfaces
-----------------------------------------------------------------------------------------------

Example showing the full IS-IS logical interface name

The command show isis logical-interface truncates the IS-IS logical interface name to the first 16 characters. To view the entire name (up to a maximum of 64 characters), use the command show isis logical-interface name.

Switch:1> show isis logical-interface name
========================================================================================
 						ISIS Logical Interface name
========================================================================================
ID     NAME   
              
----------------------------------------------------------------------------------------
1      SPBoIP_T1 
2      SPBoIP_T2 
3      SPBoIP_4K5
6      This_Is_A_50_Character_ISIS_Logical_Interface_Name 
----------------------------------------------------------------------------------------
 4 out of 4 Total Num of Logical ISIS interfaces 
----------------------------------------------------------------------------------------

Variable Definitions

The following table defines parameters for the show isis logical-interface command.

Variable

Value

name

Displays the full name of the IS-IS logical interface (up to a maximum of 64 characters).