Configuring the OSPFv3 GR Helper
Context
GR is a technology used to ensure normal traffic forwarding and non-stop forwarding of key services during the restart of routing protocols. GR is one of high availability (HA) technologies. HA technologies comprise a set of comprehensive techniques, such as fault-tolerant redundancy, link protection, faulty node recovery, and traffic engineering. As a fault-tolerant redundancy technology, GR is widely used to ensure non-stop forwarding of key services during the master/slave switchover and system upgrade.
The switch can be configured as a GR helper rather than a GR restarter.
Pre-configuration Tasks
Before configuring OSPFv3 GR, complete the following tasks:
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Configuring a link layer protocol
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Configuring IP addresses for interfaces to ensure that neighboring nodes are reachable at the network layer
Procedure
- Run system-view
The system view is displayed.
- Run ospfv3 process-id
The OSPFv3 view is displayed.
- Run helper-role [ { ip-prefix ip-prefix-name | acl-number acl-number | acl-name acl-name } | max-grace-period period | planned-only | lsa-checking-ignore ]*
OSPFv3 GR is enabled.
By default, the OSPFv3 GR helper function is disabled.
- Run commit
The configuration is committed.