OSPF extension for the support of multi-area networks with arbitrary topologies

2017/04/28 by Rui Valadas, Valadas, Rui
Computer Science · #Network Packet Processing and Optimization #Network Traffic and Congestion Control #Software-Defined Networks and 5G #cs.NI

paper · pdf · doi:10.48550/arxiv.1704.08916

4 pages, 3 figures, letter

arxiv created 2017/04/28 · arxiv updated 2017/05/01

Abstract

OSPF currently supports multi-area networking with two severe limitations, due to the distance vector approach taken in the inter-area routing protocol: (i) the multi-area topology is restricted to a two-level hierarchy, and (ii) globally optimal routing may not be achieved. In this letter, we propose an OSPF extension that overcomes these limitations by adopting a link state inter-area routing protocol. The extension applies to both OSPFv2 (IPv4) and OSPFv3 (IPv6), and is fully transparent to area-internal routers. Despite its simplicity, this extension may have a large impact in the operation of the current Internet.

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