You do not need to - any router have only `1 - 10% of all routing table active, and it is always possible to optimize these alghoritms.
On the other hand - what's wrong with 4Gb on line card in big core router? It's cheap enough, even today. And we have not 1,000,000 routes yet. ----- Original Message ----- From: "Brad Knowles" <[EMAIL PROTECTED]> To: "NANOG" <nanog@merit.edu> Sent: Friday, July 08, 2005 1:03 AM Subject: Re: OMB: IPv6 by June 2008 > > At 12:51 AM -0700 2005-07-08, Alexei Roudnev wrote: > > > Who need this complexity? What's wrong with old good _routing rotocol_ > > approach? Memory? (do not joke, today 4 Gb RAM is not a problem, when it is > > for slow routing system). CPU (the same)? What else? > > Can you put 4GB on every linecard on every router you own? Can > you put a Power5 or PowerPC 970MP processor on every linecard on > every router you own? Does your vendor support you making any > modifications/upgrades to any of their linecards, or do they require > you to buy new ones with the go-faster features? > > And how many tens of thousands of dollars do each of those > go-faster linecards cost? And how many million-dollar fork-lift > upgrades do you have to pay for in order to get the go-faster chassis > in which to plug those go-faster cards into? > > Do you have thousands of routers? Hundreds of thousands? > > > I'm asking serious questions here. I'm not a router guy, but > I've heard a lot of comments on this list that give me pause, so I'd > like to get real-world answers. > > > Speaking from my own perspective, it seems to me that we've got a > scalability problem here when we're expecting most devices to have a > pretty complete picture of the entire world. I think that's the real > problem that has to be addressed. > > In terms of the routing protocols and number of ASes, we know > that it's possible to build machines which can handle those kinds of > things at those kinds of numbers. The problem is that it's hard to > do those kinds of things on a widespread basis (e.g., in every > linecard in every router in the world), and most devices probably > don't need that anyway. > > I don't know what the real solution is. But it seems to me that > we need to find something, and having people say "4GB of RAM? No > problem" is not the way to get this solved. > > -- > Brad Knowles, <[EMAIL PROTECTED]> > > "Those who would give up essential Liberty, to purchase a little > temporary Safety, deserve neither Liberty nor Safety." > > -- Benjamin Franklin (1706-1790), reply of the Pennsylvania > Assembly to the Governor, November 11, 1755 > > SAGE member since 1995. See <http://www.sage.org/> for more info.