S1700, S2720, S5700, and S6700 V200R019C10 Command Reference
area (OSPFv3)
Parameters
| Parameter | Description | Value |
|---|---|---|
| area-id | Specifies an OSPFv3 area ID. | The value can be an integer in the decimal format or in the IPv4 address format. If the value is a decimal integer, it ranges from 0 to 4294967295. If the value is an IPv4 address, it specifies the matched IP address in dotted decimal notation. |
Usage Guidelines
Usage Scenario
The number of devices increases with the expansion of the network. This leads to a large LSDB on every OSPFv3-enabled device on a large-scale network. Consequently, route flapping frequently occurs and thus a large number of OSPF packets are transmitted on the network, which wastes bandwidth resources.
OSPFv3 addresses the preceding problem by logically partitioning an AS into different areas.
Prerequisites
The OSPFv3 process view has been entered.
Precautions
After an AS is partitioned into different areas, not all areas are equal. The area with ID 0 is a backbone area. The backbone area is responsible for forwarding inter-area routes. In addition, the routing information between non-backbone areas must be forwarded through the backbone area.
The first time the area command is run, an OSPFv3 area is created, and the OSPFv3 area view is displayed. Running the area command later enters the OSPFv3 area view only.