advertise one-interface-address

Function

The advertise one-interface-address command enables the type-132 TLV in LSPs to carry the IP address of only one IS-IS interface.

The undo advertise one-interface-address command enables the type-132 TLV in LSPs to carry the IP addresses of all IS-IS interfaces.

By default, the type-132 TLV in LSPs carries the IP addresses of all IS-IS interfaces.

Format

advertise one-interface-address

undo advertise one-interface-address

Parameters

None

Views

IS-IS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
isis	write

Usage Guidelines

Usage Scenario

By default, on Huawei devices, the type-132 TLV in LSPs carries the IP addresses of all IS-IS interfaces. However, on some non-Huawei devices, the type-132 TLV in LSPs carries the IP address of only one IS-IS interface. To implement interworking between Huawei devices and these non-Huawei devices, run the advertise one-interface-address command on the Huawei devices to enable the type-132 TLV in LSPs to carry the IP address of only one IS-IS interface.

After the command is run, the interface IP address carried in the type-132 TLV in LSPs is selected as follows:

A loopback interface's IP address is preferentially selected.
If multiple loopback interfaces exist, the highest IP address of these interfaces is preferred. If no loopback interface exists, the highest IP address of other interfaces is selected.

Precautions

If a Huawei device fails to interwork with a non-Huawei device before this command is run, the interworking succeeds only after the command is run on the Huawei device and the IS-IS process on the non-Huawei device is restarted to trigger path recalculation.

Example

# Enable the type-132 TLV in LSPs to carry the IP address of only one IS-IS interface.

<HUAWEI> system-view
[~HUAWEI] isis 1
[*HUAWEI-isis-1] advertise one-interface-address