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Date: Mon, 11 Sep 2006 10:28:49 -0700 From: Vince Fuller <vaf@cisco.com> To: Oliver Bartels <oliver@bartels.de> Cc: Gert Doering <gert@space.net>, "cidr-report@potaroo.net" <cidr-report@potaroo.net>, "nanog@merit.edu" <nanog@merit.edu>, "routing-wg@ripe.net" <routing-wg@ripe.net> In-Reply-To: <200609111031.k8BAVN9P029717@alpha.bartels.de> Errors-To: owner-nanog@merit.edu On Mon, Sep 11, 2006 at 12:32:57PM +0200, Oliver Bartels wrote: > Hi Gert, > On Fri, 8 Sep 2006 18:06:00 +0200, Gert Doering wrote: > >Ummm, well, this is a damn fast plane if it will reach another continent > >1843 times per day (or even "per week")... - which should be the only > >time the BGP announcement moves. > > > >Sounds more like "the BGP-follows-plane system has some stability problems". > > Nack. > > Probably they are using low or medium earth orbit satellites, which > _are_ damn fast in orbit. Otherwise the round trip time would be > unacceptably high. > > As the whole thing is 3D, some of them might have contact to > ground stations on this or the other side of the great lake, > depending on their 3D position, even thru the plane travels > on a well defined track (probably a 3D circle, too) in just one > direction only. > > Ceterum censeo: Nevertheless this moving-clients application shows > some demand for a true-location-independend IP-addresses > announcement feature (provider independend "roaming") in IPv6, > as in v4 (even thru this isn't the "standard" way, but Connexion is > anything but standard). Shim etc. is not sufficient ... 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. --Vince
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