OSPF multi-level hierarchy: Necessary at all?
avg at kotovnik.com
Thu May 27 22:33:27 UTC 1999
Tony Li <tony1 at home.net> wrote:
>I suspect that the main driver is not the amount of routing information
>in the gross sense, but the scalability of the protocol as the number of
There's a better solution: decrease the number of nodes by replacing
clusters with bigger boxes. This has an additional advantage of reducing
number of hops (and, consequently, latency variance).
K.I.S.S. rulez :)
PS. Using DUAL or DASM instead of SPF helps, too -- these algorithms tend
to eliminate updates which "do not matter" unlike SPF-based algorithms
which have to inform everyone about local topology changes.
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