Why Cannot OSPF Inter-Area Route Summarization Take Effect?

Latest reply: Apr 20, 2017 06:06:53 888 1 0 0
Why Cannot OSPF Inter-Area Route Summarization Take Effect?
  • x
  • convention:

Adamcolob
Created Apr 20, 2017 06:06:53 Helpful(0) Helpful(0)

According to RFC 2328, the inter-area Type-3 link-state advertisements (LSAs) generated by an Area Border Router (ABR) are directly processed into corresponding Type-3 LSAs regardless of the configured range. Summarization configuration is considered only in the case of intra-area routes.

Such route aggregation, even if achieved, causes more LSAs to be advertised to the backbone area, making the network unstable.
  • x
  • convention:

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