/25's prefixes announced into global routing table?

Majdi S. Abbas msa at latt.net
Fri Jun 21 20:14:07 UTC 2013


On Fri, Jun 21, 2013 at 01:56:02PM -0600, Michael McConnell wrote:
> As the IPv4 space get smaller and smaller, does anyone think we'll see 
> a time when /25's will be accepted for global BGP prefix announcement. 
> The current smallest size is a /24 and generally ok for most people, but 
> the crunch gets tighter, routers continue to have more and more ram will 
> it always be /24 the smallest size?

	RAM != FIB.

	The forwarding hardware is generally going to be the limit, and
that's going to be painful enough as we approach a half million
prefixes.

	You couldn't even consider such a thing until after that pain 
point.

	--msa




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