/25's prefixes announced into global routing table?

Fri Jun 21 23:01:51 UTC 2013

On 6/21/13 2:15 PM, Grzegorz Janoszka wrote:
> On 21-06-13 21:56, 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?
> As the fragmentation will progress and we will be closing to the magic
> limit of 500.000, people will filter out /24 and then /23 and so on.
> Back to static (default) routing!
500k is imho no different than 250k 128k 100k. Some devices are going to 
fall off the applecart. some folks will engage in heroic measures to 
police their fib size and the world will move on. million route and 2 
million route fib platforms abound. if we cross the million mark in 10 
years we're fine. if we cross it in 2 (which doesn't seem likely) then 
we have a problem. the v6 table imho is the one to watch.