H3C Technologies H3C SR8800 - Manual (Page 318)

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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
falling into 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 ] N/A
3. Enter OSPFv3 area view. area area-id N/A
4. Configure a summary route.
abr-summary ipv6-address
prefix-length [ not-advertise ]
Not configured by default
NOTE:
The abr-summary command takes effect on ABRs only.
Configuring OSPFv3 inbound route filtering
You can configure OSPFv3 to filter routes that are computed from received LSAs according to some rules.
To configure OSPFv3 inbound route filtering:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter OSPFv3 view. ospfv3 [ process-id ] N/A
3. Configure inbound
route filtering. filter-policy { acl-number | ipv6-prefix
ipv6-prefix-name } import
Not configured by default
NOTE:
Use of the filter-policy import command can only filter routes computed by OSPFv3. Only routes not
filtered out can be added into the local routing table.
Configuring an OSPFv3 cost for an interface
You can configure an OSPFv3 cost for an interface with one of the following methods:
• Configure the cost value in interface view.
• Configure a bandwidth reference value for the interface, and OSPFv3 computes the cost
automatically based on the bandwidth reference value: Interface OSPFv3 cost = Bandwidth
reference value ÷ Interface bandwidth. If the calculated cost is greater than 65535, the value of
65535 is used.
If the cost value is not configured for an interface, OSPFv3 computes the interface cost value
automatically
To configure an OSPFv3 cost for an interface: