mpls l2vpn l3ve delay-up

Function

The mpls l2vpn l3ve delay-up command configures a delay for an L3VE interface to go Up after a faulty L2VPN service recovers.

The undo mpls l2vpn l3ve delay-up command cancels the delay configured for an L3VE interface to go Up after a faulty L2VPN service recovers.

By default, an L3VE interface goes Up immediately after a faulty L2VPN service recovers.

Format

mpls l2vpn l3ve delay-up time

undo mpls l2vpn l3ve delay-up time

Parameters

Parameter	Description	Value
time	Indicates a delay for an interface to go Up.	The value is an integer ranging from 1 to 300, in seconds. The default value is 0.

Parameter

Description

Value

time

Indicates a delay for an interface to go Up.

The value is an integer ranging from 1 to 300, in seconds. The default value is 0.

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 an L2VPN accessing L3VPN scenario, if the L2VPN service goes faulty, the L3VE interface goes Down accordingly, causing the L3VPN service to go faulty. By default, the L3VE interface goes Up immediately after the L2VPN service recovers, triggering the activation of the L3VPN service. If a large number of services are running, the L3VPN service may be activated before entries are delivered to the forwarding plane for the L2VPN service. As a result, the Layer 2 traffic is interrupted, whereas the Layer 3 traffic can be forwarded. To prevent this problem, run the mpls l2vpn l3ve delay-up command to configure a delay for the L3VE interface to go Up. The L3VE interface can go Up after the L2VPN service recovers, then activating the L3VPN service.

Example

# Configure a delay of 100s for an L3VE interface to go Up after a faulty L2VPN service recovers.

<HUAWEI> system-view
[~HUAWEI] interface Virtual-Ethernet 0/1/16.1
[*HUAWEI-Virtual-Ethernet0/1/16.1] mpls l2vpn l3ve delay-up 100