Re: Requirements for IP Multihoming Architectures

[Vijay Gill <vijay@umbc.edu>]

On Tue, 20 Mar 2001, Tony Li wrote:

> Path bloat is far less onerous than prefix bloat, as path bloat can be
> addressed by bigger faster processors with bigger memories, both of which
> don't look to be a limiting factor.
>
> Prefix bloat inflates the forwarding table, which is more painful becuause
> it's a large memory that has to be accessed at line rate.

Some of these tradeoffs were discussed at nanog 21, in particular the time
vs.  money graph. Large amounts of high speed ram will cost you for the
FIB. As for the RIB issue, smd had some interesting points regarding
multiple readers/updaters to the RIB, and next hop rewriting, among
others.

/vijay