<div dir="ltr">This thread reminded me of something I saw these days about using BGP unnumbered in Hypervisors for EVPN/VXLAN.<br><br>I confess that I was completely stunned to see how beautiful it was!<br><br>- The 4 ports of each Server became a CLOS L3 topology.<br>- The complexities of Multichassis-LAG no longer exist.<br>- The establishment of neighborhoods was almost automatic.<br>- And the ToR switches became only simple L3 routers, without even knowing of the existence of Overlay. Which made them much cheaper and simpler to operate.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em qui., 14 de jul. de 2022 às 12:40, Marco d'Itri <<a href="mailto:md@linux.it">md@linux.it</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Jul 14, Ondrej Zajicek <<a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>> wrote:<br>
<br>
> > RFC 8950 is what has been implemented in Cumulus.<br>
> Not sure how that is relevant, RFC 8950 is just IPv6 next hop for IPv4<br>
> routes, it does not handle BGP neighbor discovery.<br>
Discovery is just looking at Router Advertisements for the link, then <br>
you need RFC 8950.<br>
<br>
<a href="https://www.theasciiconstruct.com/post/cumulus-basics-part-v-bgp-unnumbered/" rel="noreferrer" target="_blank">https://www.theasciiconstruct.com/post/cumulus-basics-part-v-bgp-unnumbered/</a><br>
<a href="https://www.theasciiconstruct.com/post/junos-bgp-and-bgp-unnumbered/#bgp-unnumbered-bgp-auto-discovered-neighbors" rel="noreferrer" target="_blank">https://www.theasciiconstruct.com/post/junos-bgp-and-bgp-unnumbered/#bgp-unnumbered-bgp-auto-discovered-neighbors</a><br>
<br>
-- <br>
ciao,<br>
Marco<br>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr">Douglas Fernando Fischer<br>Engº de Controle e Automação<br><div style="padding:0px;margin-left:0px;margin-top:0px;overflow:hidden;color:black;text-align:left;line-height:130%;font-family:"courier new",monospace"></div></div></div>