reserve-interface fast-switch enable

Function

The reserve-interface fast-switch enable command enables the reserve-interface fast switching function.

The undo reserve-interface fast-switch enable command disables the reserve-interface fast switching function.

By default, the reserve-interface fast switching function is disabled.

Format

reserve-interface fast-switch enable

undo reserve-interface fast-switch enable

Parameters

None

Views

EVPN instance view, VSI view, Bridge domain view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
forwarding	write

Usage Guidelines

Usage Scenario

In the VPLS decoupling, BD VPLS decoupling, EVPN, and BD EVPN scenarios, after the reserve-interface fast-switch enable command is run in an instance, the device delivers backup leaf node information to the standby interface board, which helps improve the switching performance of broadcast traffic if the master board fails.

Precautions

For VPLS and BD VPLS services, the reserve-interface fast-switch enable command must be used together with the mpls vpls convergence separate enable command.

Example

# Enable the reserve-interface fast switching function in an EVPN.

<HUAWEI> system-view
[~HUAWEI] evpn vpn-instance test
[*HUAWEI-evpn-instance-test] reserve-interface fast-switch enable

# Enable the reserve-interface fast switching function in a BD.

<HUAWEI> system-view
[~HUAWEI] bridge-domain 1
[*HUAWEI-bd1] reserve-interface fast-switch enable

# Enable the reserve-interface fast switching function in a VSI.

<HUAWEI> system-view
[~HUAWEI] vsi test
[*HUAWEI-vsi-test] reserve-interface fast-switch enable