The abr-summary command configures IPv6 route summarization on an Area Border Routers (ABRs).
The undo abr-summary command cancels IPv6 route summarization on an ABRs.
By default, IPv6 route summarization is not configured on an ABR.
abr-summary ipv6-address prefix-length [ cost cost | not-advertise ] *
undo abr-summary ipv6-address prefix-length
| Parameter | Description | Value |
|---|---|---|
| ipv6-address | Specifies the address range of IPv6 routes to be summarized. | - |
| prefix-length | Specifies the prefix length. | The value ranges from 1 to 128. |
| cost cost | Specifies the cost of a summarized route. By default, the cost of a summarized route is the maximum cost among those of routes that are summarized. | The value ranges from 1 to 16777214. |
| not-advertise | Indicates that the summarized IPv6 routes that match a specified IPv6 address prefix or prefix length are not advertised. | - |
This command is applicable only to the ABR for route aggregation of the current area. The ABR transmits only one summarized route to other areas.
An area can be configured with multiple summarized network segments. Therefore OSPFv3 can summarize multiple network segments.
# Summarize two routes 2001:db8:1:1::/64 and 2001:db8:1:2::/64 of OSPFv3 area 1 into route 2001:db8:1::/48 with the cost being 400, and advertise it to other areas.
<sysname> system-view
[sysname] ospfv3 1
[sysname-ospfv3-1] area 1
[sysname-ospfv3-1-area-0.0.0.1] abr-summary 2001:db8:1:: 48 cost 400