H3C Technologies H3C S10500 Series Switches - Manual (Page 301)

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Configuring OSPFv3 route summarization
If contiguous network segments exist in an area, 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 in the
specified network segment will not be advertised, reducing the LSDB size in other areas.
Follow these steps to configure route summarization:
To do… Use the command… Remarks
Enter system view system-view —
Enter OSPFv3 view ospfv3 [ process-id ] —
Enter OSPFv3 area view area area-id —
Configure a summary route
abr-summary ipv6-address
prefix-length [ not-advertise ] Required
Not configured by default
NOTE:
The abr-summary command takes effect on ABRs only.
Configuring OSPFv3 inbound route filtering
According to some rules, you can configure OSPFv3 to filter routes that are computed from received
LSAs.
Follow these steps to configure OSPFv3 inbound route filtering:
To do… Use the command… Remarks
Enter system view system-view —
Enter OSPFv3 view ospfv3 [ process-id ] —
Configure inbound route
filtering filter-policy { acl-number | ipv6-prefix
ipv6-prefix-name } import Required
Not configured by default
NOTE:
Using 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 (100 Mbps) ÷ Interface bandwidth (Mbps). If the calculated cost is greater than
65535, the value of 65535 is used; if the calculated cost is smaller than 1, the value of 1 is used.
If the cost value is not configured for an interface, OSPFv3 computes the interface cost value
automatically.
Follow these steps to configure an OSPFv3 cost for an interface: