Configuring IGMP Dual-Device Hot Backup in a VRRP Master/Backup Scenario (Binding a Multicast Service Interface to a Common VRRP Group)

IGMP dual-device hot backup implements non-stop multicast service forwarding during a master/backup device switchover. This section describes how to configure IGMP dual-device hot backup in a VRRP master/backup scenario.

Pre-configuration Tasks

Before configuring IGMP dual-device hot backup in a VRRP master/backup scenario, complete the following tasks:

Assign IP addresses to loopback interfaces on the master and backup devices, and configure a routing protocol.
Configure mVRRP and common VRRP groups.

Configuring a Dual-Device Backup Platform: This section describes how to configure a dual-device backup platform to back up IGMP entries. If a network node or link fails, a rapid multicast service switchover is triggered, improving service reliability.

Enabling Remote Backup for IGMP: This section describes how to enable remote backup for IGMP to implement IGMP entry consistency between the master and backup devices.

Verifying the Configuration of IGMP Dual-Device Hot Backup: After configuring IGMP dual-device hot backup, verify the configuration.