isis ldp-sync block

Function

The isis ldp-sync block command blocks LDP and IS-IS synchronization on an interface.

The undo isis ldp-sync block command restores the default LDP and IS-IS synchronization function.

By default, LDP and IS-IS synchronization is not blocked on an interface.

Format

isis ldp-sync block

undo isis ldp-sync block

Parameters

None

Views

100GE interface view, 10GE interface view, 25GE sub-interface view, 25GE interface view, 400GE interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk interface view, FlexE interface view, GE optical interface view, GE electrical interface view, Global VE sub-interface view, Tunnel interface view, VE sub-interface view, VE interface view, XGE interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
isis	write

Usage Guidelines

Usage Scenario

After the ldp-sync enable command is run in an IGP process, the interfaces on which the neighbor status is Up run LDP-IGP synchronization. If the interfaces on a device carrying key services, ensure that the backup path does not pass through this device. In addition, you can block LDP-IGP synchronization on a specified interface of the device.

Precautions

The display isis ldp-sync interface command can be used to display information about an interface on which LDP and IS-IS synchronization is enabled.

Example

# Block LDP and IS-IS synchronization on GE 0/1/0.

<HUAWEI> system-view
[~HUAWEI] isis 1
[*HUAWEI-isis-1] quit
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] isis enable
[*HUAWEI-GigabitEthernet0/1/0] isis ldp-sync block