Configuring OSPF GR
Applicable Environment
To avoid traffic interruption and route flapping caused by active/standby switchovers, you can enable OSPF GR.
After an OSPF process is restarted using GR, the Restarter and the Helper reestablish a neighbor relationship, exchange routing information, synchronize their LSDBs, and update their routing tables and forwarding tables. These operations ensure fast OSPF convergence and network topology stability.
Where possible, to prevent service forwarding from being affected by faults on an active control board, you can configure OSPF GR when dual control boards are deployed.