soBGP deployment

Thu May 26 15:10:35 UTC 2005

      On Thu, 26 May 2005, Todd Underwood wrote:
    > the scalability problem, as i understand it (not at all an expert
    > here) is that routers won't currently handle such a list with regexps
    > very well.  apparently, ciscos will not allow filtering advertisements
    > on a combination of prefix + as-path regexp at all and junipers will,
    > but the perception is that they will not scale to a list of 300-500K
    > (which is the union of routes in global tables without any
    > consolidation).  if you could consolidate all equally originated
    > prefixes under their covering supernets and still adequately filter,
    > that number would be *much* smaller, obviously.

Or if you could do it based on atoms rather than prefixes.  But atoms have 
been looking like a trickier concept than I first thought, as we've 
started to look at them.

                                -Bill