[routing-wg]BGP Update Report
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Marshall Eubanks
tme at multicasttech.com
Mon Sep 11 19:54:54 CEST 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
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