Re: gigabit router (was Re: Getting a "portable" /19 or /20)

[<alex () yuriev com>]

> Try ~ 10ns ram which you can buy 256MB of for ~ $60-80
> (www.pricewatch.com). At any rate, A raw 3 or 4 level mtrie FIB fully
> populated with the real 100k+ routes on the internet consumes less then
> 900kb, and all the interesting parts fit in the L2 cache of a Celeron A
> where you can do about 22,000 lookups per MHz. Hardly excessive memory
> bandwidth. The packet ram on the gige cards is also very fast, and could
> easily accomidate a dCEF approach.

CEF should be called Customer Enrangement Feature. It is a very very very
bad idea to have linecards be anything else than forwarders. They should not
make any intelligent routing decisions. There should not be a tons of copies
of routing table on line cards.  That is what creates problems.

Alex