l3ve track pw-state

Function

The l3ve track pw-state command associates the L3VE interface status with the PW status.

The undo l3ve track pw-state command disassociates the L3VE interface status from the PW status.

By default, the L3VE interface status is not associated with the PW status.

Format

l3ve track pw-state

undo l3ve track pw-state

Parameters

None

Views

Global VE sub-interface view, VE sub-interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2vpn	write

Usage Guidelines

Usage Scenario

In the IP RAN mixed VPN solution, if the primary and secondary PWs have been established and corresponding L3VE interfaces have gone Up after the primary RSG recovers, the downstream traffic may switch back to the primary RSG. However, if the downstream traffic switches back to the primary RSG before the primary/secondary PW switchover is complete, the downstream traffic may be temporarily dropped. To solve this problem, run the l3ve trackpw-state command to associate the L3VE interface status with the PW status.The l3ve trackpw-state command associates the L3VE interface status with the PW status. Then, the L3VE interface can keep its status consistent with the PW status by detecting the active and standby status of the PW, so that the traffic on the RNC can be properly switched between the master and backup RSGs.

Precautions

This command can be configured only on the VE sub-interface.

Example

# Associate the L3VE interface status with the PW status.

<HUAWEI> system-view
[~HUAWEI] interface Virtual-Ethernet 0/1/0.1
[*HUAWEI-Virtual-Ethernet0/1/0.1] l3ve track pw-state