[routing-wg]BGP Update Report

Mon Sep 11 17:54:54 UTC 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