Re: [routing-wg]BGP Update Report

[Marshall Eubanks <tme () multicasttech com>]

Hello;

On Sep 11, 2006, at 1:34 PM, Vince Fuller wrote:

> > On Mon, Sep 11, 2006 at 10:28:49AM -0700, Vince Fuller wrote:
> > > One might also imagine that more globally-friendly way to  
> > > implement this
> > > would have been to build a network (VPN would be adequate)  
> > > between the
> > > ground stations and assign each plane a prefix out of a block  
> > > whose subnets
> > > are only dynamically advertsed within that network/VPN. Doing  
> > > that would
> > > prevent the rest of the global Internet from having to track 1000 
> > > + routing
> > > changes per prefix per day as satellite handoffs are performed.
> >
> > As has been said before, and is also readable in that blog entry: the
> > system is supposed to create *one* advertisement change when the  
> > plane
> > is crossing from the "Europe" to the "US" ground station (etc.), not
> > 1000+.
>
> The comment still applies. Imagine that this system were  
> implemented globally
> on all international/intercontinental air routes. It would still be  
> nice to
> avoid having each of those airplanes cause a globally-visible  
> routing update
> whenever it crosses some geographical boundary.

In a typical flight Europe / China I believe that there would be  
order 10-15 satellite transponder / ground
station changes. The satellite footprints count for more that the  
geography.

>         --Vince

Regards
Marshall