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Re: [routing-wg]BGP Update Report

  • From: Marshall Eubanks
  • Date: Mon Sep 11 14:14:39 2006 
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