Configuring OSPFv3 to Advertise a Locator Route
To guide traffic forwarding in SRv6 scenarios, OSPFv3 can be configured to advertise a locator route.
Context
Currently, only IS-IS can be used to implement SRv6 BE. In scenarios that use OSPFv3 on the public network (for example, an SRv6 BE scenario), OSPFv3 needs to be configured to advertise a locator route. After this is configured, OSPFv3 can advertise intra-area LSAs carrying information about the IPv6 prefix configured for the locator, and deliver the route with this IPv6 prefix to the local routing table to guide traffic forwarding.
Procedure
- Run system-view
The system view is displayed.
- Run segment-routing ipv6
SRv6 is enabled.
- Run locator locator-name [ ipv6-prefix ipv6-address prefix-length [ static static-length | args args-length ] * ]
An SRv6 locator is configured.
- Run quit
Exit the SRv6 locator view.
- Run quit
Exit the SRv6 view.
- Run ospfv3 [ process-id ]
The OSPFv3 process view is displayed.
- Run router-id router-id
A router ID is configured.
This router ID must be unique in an AS. The common practice is to select the IP address of an interface on the device as the router ID.
The router ID for each OSPFv3 process must be unique across the whole network. Otherwise, an OSPFv3 neighbor relationship cannot be established, and routing information is incorrect. You are advised to set a network-wide unique router ID for each OSPFv3 process on an OSPFv3 device.
- Run segment-routing ipv6 locator locator-name auto-sid-disable
OSPFv3 is enabled to advertise the locator route.
- Run commit
The configuration is committed.
Verifying the Configuration
Run the display ospfv3 [ process-id ] routing verbose command in any view to check information about an OSPFv3 routing table.