multicast wtr(VPN instance IPV6 address family MVPN view)

Format

multicast wtr wtr-time

undo multicast wtr

undo multicast wtr wtr-time

Parameters

Parameter	Description	Value
wtr-time	Sets a switchback wait time for multicast VPN FRR.	The value is an integer ranging from 60 to 1800, in seconds.

Parameter

Description

Value

wtr-time

Sets a switchback wait time for multicast VPN FRR.

The value is an integer ranging from 60 to 1800, in seconds.

Views

VPN instance IPv6 address family MVPN view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
forwarding	write

Usage Guidelines

Usage Scenario

After the primary link recovers in an NG MVPN 1+1 scenario, the system waits for a period of time before switching traffic back to the primary link. To set a switchback wait time, run the multicast wtr command. If a network has a large number of multicast entries (for example, 1000 or more), setting the switchback wait time to a value greater than 600s is recommended.

Prerequisites

Multicast VPN FRR has been enabled using the c-multicast frr command in the VPN instance IPv6 address family MVPN view.

Precautions

The multicast wtr command takes effect only in BFD scenarios.

Example

# Set a switchback wait time to 100s for multicast VPN FRR.

<HUAWEI> system-view
[~HUAWEI] multicast ipv6 mvpn 2.2.2.2
[*HUAWEI] ip vpn-instance mcast1
[*HUAWEI-vpn-instance-mcast1] ipv6-family
[*HUAWEI-vpn-instance-mcast1] route-distinguisher 1:1
[*HUAWEI-vpn-instance-mcast1-af-ipv6] multicast ipv6 routing-enable
[*HUAWEI-vpn-instance-mcast1-af-ipv6] mvpn
[*HUAWEI-vpn-instance-mcast1-af-ipv6-mvpn] c-multicast frr
[*HUAWEI-vpn-instance-mcast1-af-ipv6-mvpn] multicast wtr 100