5.5 Configuring OSPFv3 Areas
OSPFv3 supports stub areas and virtual links, the principle and applicable environment of which
are similar to those in OSPFv2.
5.5.1 Establishing the Configuration Task
Configuring a stub area is optional. Not all areas can be configured as stub areas. Generally, a
stub area, which is located at the AS boundary, is a non-backbone area with only one ABR.
Applicable Environment
To reduce the number of LSAs in the network and enhance OSPFv3 extensibility, define OSPFv3
areas. For some non-backbone areas at the edge of ASs, you can define them as stub areas for
further reducing the size of the routing table and the number of LSAs.
Pre-configuration Tasks
Before configuring OSPFv3 area attributes, complete the following tasks:
l Enabling IPv6 capability
l Configuring Basic OSPFv3 Functions
Data Preparation
To configure OSPFv3 area attributes, you need the following data.
No.
Data
1 Areas to be defined as stub areas
2 Metrics of default routes sent to stub areas
5.5.2 Configuring OSPFv3 Stub Areas
A stub area is a special area in which ABRs do not flood the received AS external routes. Thus,
the number of LSAs is greatly reduced.
Context
Do as follows on each switch that runs OSPFv3 in the stub area:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
S6700 Series Ethernet Switches
Configuration Guide - IP Routing 5 OSPFv3 Configuration
Issue 01 (2012-03-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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