Configuring OSPFv3 route summarization

If contiguous network segments exist in an area, you can use the abr-summary command to summarize them into one network segment on the ABR. The ABR will advertise only the summary route. Any LSA on the specified network segment will not be advertised, reducing the LSDB size in other areas.

To configure route summarization:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter OSPFv3 view.

ospfv3 [ process-id | vpn-instance vpn-instance-name ] *

N/A

3. Enter OSPFv3 area view.

area area-id

N/A

4. Configure route summarization.

abr-summary ipv6-address prefix-length [ not-advertise ] [ cost value ]

By default, route summarization is not configured.

The abr-summary command takes effect only on ABRs.