North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: gigabit router (was Re: Getting a "portable" /19 or /20)
> > 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
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