Re: What is the most standard subnet length on internet

[bmanning () vacation karoshi com]

On Tue, Dec 23, 2008 at 02:08:25PM +1300, Nathan Ward wrote:
> On 23/12/2008, at 1:31 PM, Seth Mattinen wrote:
> > Anyone running a platform that can't take a full table would apply  
> > such a filter to weed out anyone who likes to announce all of their  
> > space as /24's for "traffic engineering". If one does that and  
> > doesn't announce the aggregate as well, one could find themselves  
> > facing random black holes.
>
>
> People are filtering /24s without a 0/0 route?

        actually, you should ask the more general question,

        "Are ISPs filtering when they don't have a 0/0 route?"

        and i suspect the answer is almost certainly.

        being default-free has its advantages as does not
        
        using some variable RIR metric as a basis for routing 
        
        policy.

--bill