Re: [RRG] thoughts on the design space 3: caching

[Marshall Eubanks <tme@multicasttech.com>]

On Jul 25, 2008, at 5:44 PM, Tony Li wrote:

> |The BGP data indicates that out of 250K stored routes, most routers
> |use only 25K of those routes. So isn't that a bit of wasted memory as
> |well as come-up convergence time?
>
>
> I believe that this isn't an accurate characterization.  From the  
> data that
> I've seen, most routes are being used.  However, I could easily  
> believe that
> many, many routes could be eliminated if we were able to aggregate
> maximally.

I could believe a factor of 2 easy - there is almost that much in
known deaggregation in each CIDR report.

--- 25Jul08 ---
ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

Table     275468   173778   101690    36.9%   All ASes

A factor of 10 seems a little much to me, though.

Regards
Marshall

> Dino, if you have pointers to primary data sources to the contrary,  
> could
> you please post them?
>
> Tony
>
>
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