nanog mailing list archives
Re: CIDR FAQ
From: Tony Li <tli () cisco com>
Date: Tue, 15 Aug 1995 17:50:56 -0700
Uh, I've seen PC's with Gigabytes of RAM, but have yet to hear of a router with such. True. There's no market yet. CIDR is a bandaid. If you seriously believe that, then you better present some other mechanism for scaling routing. We know of only one: hiearachical routing. The problem is translating from from BGP to forwarding tables installed in routers. Sorry, no. There are a number of problems. This isn't one. Current routers do not have enough BGP processing power to do the BGP filtering and processing power. I have about 100 counterexamples. Obviously, you can configure arbitrarily complex filtering and if you do that, you need an arbitrarily large amount of compute power. The fact is that there's enough to work today. The other problem is the mesh nature of BGP which makes any BGP peering site, with full mesh peering, an N^2 problem. This is fixed. Seeing as memory is typical 1/2 the price for a workstation as for a Cisco router, you can almost aford to have 4 BILLION host routes in the workstation, compared to the cost of the replacing your entire backone with the Cisco of the Month Club. No one said that you had to buy the memory for your cisco from cisco. Tony
Current thread:
- Re: CIDR FAQ, (continued)
- Re: CIDR FAQ Nathan Stratton (Aug 15)
- Re: CIDR FAQ Nicolas Williams (Aug 15)
- Re: CIDR FAQ Dave Siegel (Aug 15)
- Re: CIDR FAQ alex (Aug 16)
- Re: CIDR FAQ Per Gregers Bilse (Aug 16)
- Re: CIDR FAQ alex (Aug 16)
- Re: CIDR FAQ Tony Li (Aug 15)
- Re: CIDR FAQ Jeremy Porter (Aug 15)
- Re: CIDR FAQ Tony Li (Aug 15)
- Re: CIDR FAQ Jeremy Porter (Aug 15)
- Re: CIDR FAQ Tony Li (Aug 15)
- Re: CIDR FAQ Yakov Rekhter (Aug 16)
- Re: CIDR FAQ Ruediger Volk (Aug 16)
- Re: CIDR FAQ bmanning (Aug 16)
- Re: CIDR FAQ David J. Schmidt (Aug 16)
- Re: CIDR FAQ Yakov Rekhter (Aug 17)