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 interface:

    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      VIDS      TUNNEL   L3_TUNNEL_NEXT_HOP_INFO  BFD      TUNNEL   ORIGIN  ISIS  SDWAN
               TYPE       PORT/MLT   (PRIMARY)   DEST-IP  PORT/MLT   VLAN   VRF    STATUS   SRC-IP           MTU   OPER STATE     
----------------------------------------------------------------------------------------------------------------------------
1     SD-WAN-1 IP          --        --          192.0.2.3 Port1/44  4047   sd-wan disabled 192.0.2.1 ZTF    1400  UP
2     --       L2-P2P-VID  Port2/1   101,201(101)    --      --        --    --    disabled   --      config       N/A
3     --       L2-P2P-VID  Port1/3   102,202(102)    --      --        --    --    disabled   --      config       N/A
----------------------------------------------------------------------------------------------------------------------------
3 out of 3 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  VIDS      TUNNEL   L3_TUNNEL_NEXT_HOP_INFO            BFD       TUNNEL    ORIGIN  ISIS  SDWAN    
                 TYPE  PORT/MLT (PRIMARY) DEST-IP  PORT/MLT      VLAN    VRF          STATUS    SRC-IP            MTU   OPER STATE
---------------------------------------------------------------------------------------------------------------------------
1 SD-WAN-1       IP     --      --       192.0.2.3    Port1/44    4047   sd-wan       disabled  192.0.2.1  ZTF     1400  UP
2 SPBoIP_T1      IP     --      --       192.0.2.15   Port1/25    500    vrf23        disabled  192.0.2.16 CONFIG  1000  N/A
3 SPBoIP_T2      IP     --      --       192.0.2.224  MLT10       2      vrf24        disabled  192.0.2.22 CONFIG  1600  N/A
4 Virtual-link-4 IP     --      --       4.4.4.4      PortRX-NNI  4051   GlobalRouter disabled  2.2.2.2    CONFIG  1600  N/A
5 Virtual-link-5 IP     --      --       5.5.5.5      Null        0      GlobalRouter disabled  2.2.2.2    CONFIG  1600  N/A
---------------------------------------------------------------------------------------------------------------------------
5 out of 5 Total Num of Logical ISIS interfaces 
---------------------------------------------------------------------------------------------------------------------------

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      SD-WAN-1
2      SPBoIP_T1
3      SPBoIP_T2
4      Virtual-link-4
5      Virtual-link-5 
-----------------------------------------------------------
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).