Display IS-IS logical interfaces.
show isis logical-interface [name]
None.
User EXEC
The show isis logical-interface command displays the following information:
|
Output field |
Description |
|---|---|
|
IFIDX |
Displays an index value for this logical interface. |
|
NAME |
Displays the administratively assigned name of this logical interface. |
|
ENCAP TYPE |
Displays whether the encapsulation type for the logical interface is Layer 2 (L2–P2P-VID) or Layer 3 (IP). |
|
L2_INFO PORT/MLT |
Displays the port or MLT that the logical interface is connected to in an Layer 2 network. |
|
VIDS (PRIMARY) |
Displays the list of VLANs that are associated with this Layer 2 logical interface. |
|
TUNNEL DEST-IP |
Displays the destination IP address for the logical interface. |
|
L3_TUNNEL_NEXT_HOP_INFO PORT/MLT |
Displays the outgoing interface (port or MLT) for VXLAN traffic. |
|
L3_TUNNEL_NEXT_HOP_INFO VLAN |
Displays the outgoing VLAN interface for VXLAN traffic. |
|
L3_TUNNEL_NEXT_HOP_INFO VRF |
Displays the name of the VRF that this Layer 3 logical interface is configured on. |
|
BFD STATUS |
Displays the status of BFD on this logical interface. The status can be enabled or disabled. |
|
TUNNEL SRC-IP |
Displays the source IP address for a Fabric Extend tunnel. |
|
ORIGIN |
Displays the origin of the IS-IS logical interface configuration. For example, Zero Touch Fabric Configuration (ZTF) or manual configuration (config) through CLI or EDM. |
|
ISIS MTU |
Displays the Maximum Transmission Unit (MTU) size in bytes for IS-IS packets that use this logical interface. FE-IP deployments only. |
|
SDWAN OPER STATE |
Displays the one of the following states of the SD-WAN tunnel:
|
Example of a Layer 2 Core (FE-VID):
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 (FE-IP):
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
---------------------------------------------------------------------------------------------------------------------
3 out of 3 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 This_Is_A_50_Character_ISIS_Logical_Interface_Name
-----------------------------------------------------------
4 out of 4 Total Num of Logical ISIS interfaces
-----------------------------------------------------------