>Howard commented:
>>10 million routes? Even with the growth rate of the Internet going
>>exponential again, I wouldn't see that happening for several years
>>yet. By then, we will have new router generations.
>
>Me says: I see according to the Bates report that "the internet routing
>table" is now hitting 100,000 plus routes a couple of times a week. Any
>takers on when the number stays over 100,000 for three solid weeks?
>
The various routing table surveys (Bates, Smith, Huston) vary
slightly, but they actually understate the routing table load seen by
a major provider router. The reports don't include internal and
customer routes that are aggregated. Guesstimates are that such
routes can be 30 to 50 percent of the default free zone, for a given
carrier.
Also, be aware that it's more than just the "best route" to a
destination. We are seeing more and more "route instances" --
different ways to reach a destination, typically different AS paths.
The old rule of thumb was that a well-connected provider saw around 4
or 5 instances for each route, but more recent measurements suggest
10 is not at all uncommon. In general, AS paths are getting shorter,
but there are more total route instances.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=1661&t=1479
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