Re: Setting Initial Round-trip time

Bob Braden (
Fri, 31 Oct 86 09:16:55 PST

        The problem with the cache is that a) you don't know if the values
        correspond to the routes your traffic is/will take. b) you may not
        have enough traffic to enough destinations to maintain statistically
        valid (fresh) delay information. It may be possible that things will
        be static enough that cache will actually work well most of the time,
        but if the internet exhibits significant statistical variation in
        delay/throughput, the cache may be not only misleading but downright


Everything you say is true, but I fail to see how bad cache information
will be more harmful than no information at all.

Bob Braden

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