Re: Number of BGP routes a large ISP sees in total

["Patrick W. Gilmore" <patrick () ianai net>]

On Apr 18, 2007, at 2:43 AM, Mikael Abrahamsson wrote:
> On Tue, 17 Apr 2007, Yi Wang wrote:
>
> > sense about the average (e.g., about 5? 10? 20?), as for a "large"  
> > ISP.
>
> Well, if you're interconnecting with other large ISPs in 5 places  
> then you'll get each prefix at least 5 times. Having 5 eBGP  
> sessions between two ASes is quite common if both are large ISPs.  
> So yes, I'd say that between 5-10 is quite common.

At least 5, and more than 10 for many prefixes, inside very, very  
large networks.

--
TTFN,
patrick