The multicast wtr command sets a switchback wait time for multicast VPN FRR.
The undo multicast wtr command restores the default switchback wait time.
The default switchback wait time is 600s for multicast VPN FRR.
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.
<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