Configuration Guide Vol. 3

12.2.2 Configuration flow

<Structure of this section>

(1) Steps for setting the stub area and NSSA when the area is not a border

  1. Set up the IP interfaces in advance.

  2. Configure the area to operate as a stub area or NSSA.

  3. Enable OSPF.

(2) Area Border Router Configuration Procedure

  1. Set up the IP interfaces in advance.

  2. Configure the relevant areas to operate as stub areas or NSSAs.

    For a stub area, specify the cost of the advertised default route.

    In an NSSA, the default route can be advertised as an external AS route.

  3. Configure route summarization.

  4. Enable OSPF.

    Configure more than one area. At this time, you must configure an interface that connects to area 0 (the backbone), or establish a virtual link.

  5. Establish virtual links.

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