Messages in this thread | | | From | (Mike Bird) | Subject | Re: IPv6 and the "average user" | Date | Sat, 30 Nov 1996 06:34:34 GMT |
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alan@lxorguk.ukuu.org.uk (Alan Cox) wrote: >The killer isnt just routing tables. The killer is lookup time. Cisco stuff >is supposed to flake out at about 40,000 routes from figures people have >quoted. Hence the fact sprint and folks won't route smaller than a /19 and >keep making noises abou going to /17.
>I would imagine some other kit can do better some worse, nevertheless trying >to look up destinations from 40,000 choices at 100Mbits/second on 10 network >ports, while recomputing the routing tables is NOT a trivial problem.
What am I missing here? Won't a 16MB lookup table (costing about $100) handle the job all the way down to /24? Recomputing the routing tables is non-trivial but it can happen in the background without holding up packet routing. I wouldn't want this in my 16MB Linux box, but why wouldn't it work for backbone routers?
--Mike
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