<div dir="auto">It’s reasonable to think that it’s segment routed in some way, the advantages there are numerous and pretty clear. It would give them the significant advantage of being able to leverage a PCE controller architecture and provide a lot of LFA options for resiliency. My money would be there, either SR-MPLS or SRv6. </div><div dir="auto">Not a lot of options for SRv6 at this time (some ur not many). It’s not outside the realm of possibilities by any stretch of the imagination. </div><div dir="auto"><br></div><div dir="auto">nb</div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 30, 2021 at 6:35 PM Michael Richardson <<a href="mailto:mcr%2Bietf@sandelman.ca">mcr+ietf@sandelman.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><br>
Dave Taht <<a href="mailto:davet@teklibre.net" target="_blank">davet@teklibre.net</a>> wrote:<br>
> going village to village on the same sat would save a ton of backhaul<br>
> bandwidth and offer less latency for things like phone calls. The CGN<br>
> (dang it) looks doomed to backhaul somewhere, but perhaps the ipv6<br>
> stuff?<br>
<br>
As well as resiliency, and perhaps legal protection against NSL.<br>
<br>
> I imagine they do it at the l2 protocol and program the next hop(s) on<br>
> the ground, but we do live in an age where everything is centralized<br>
<br>
"Simpler than IPv6" is all we ever got.<br>
I think that it's MPLS or SR6 based upon some commodity fabric, with SDN to<br>
create the paths.<br>
<br>
> (for those that don’t know, I’ve been working on distance-vector<br>
> routing protocols for decades, most of my work on that front for the<br>
> last decade has been focused on making the babel routing protocol scale<br>
> better than bgp does for meshy links )<br>
<br>
--<br>
Michael Richardson <<a href="mailto:mcr%2BIETF@sandelman.ca" target="_blank">mcr+IETF@sandelman.ca</a>> . o O ( IPv6 IøT consulting )<br>
Sandelman Software Works Inc, Ottawa and Worldwide<br>
<br>
<br>
<br>
<br>
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</blockquote></div></div>