In the description of the vxlan BGP evpn scenario has a typo on the multisite feature segmented LSP inter pod with the RT auto rewrite which is similar to MPLS inter-as option b not a.
Kind regards Gyan On Wed, Apr 22, 2020 at 5:57 PM Gyan Mishra <[email protected]> wrote: > > All > > Had a question related to vxlan BGP EVPN architecture specifications > defined in BGP EVPN NVO3 overlay RFC 8365 and VXLAN data plane RFC 7348. > > In a Data Center environment where you have a multiple PODs individual > fabrics per POD connected via a super spine extension using a Multi site > feature doing auto rewrite of RTs to stitch the NVE tunnel between pods > similar to inter-as option A. > > So in this scenario where you have vlan sprawl everywhere with L2 and L3 > VNIs everywhere as if it were a a single L2 domain. The topology is a > typical vxlan spine leaf topology where the L3 leafs are the TOR switch so > very small physical L2 fault domain. So I was wondering if with the vxlan > architecture if this feature below is possible or if their is a way to do > so in the current specification. > > Cisco use to have a DC product called “fabric path” which was based on > conversation learning. > > Is there any way with existing vxlan BGP evpn specification or maybe > future enhancement to have a Mac conversation learning capability so that > only the active mac’s that are part of a conversations flow are the mac > that are flooded throughout the vxlan fabric. That would really help > tremendously with arp storms so if new arp entries are generated locally on > a leaf they are not flooded through the fabric unless their are active > flows between leafs. > > Also is there a way to filter type 2 Mac mobility routes between leaf > switches at the control plane level based on remote vtep or maybe other > parameters. That would also reduce arp storms BUM traffic. > > Kind regards > > Gyan > -- > > Gyan Mishra > > Network Engineering & Technology > > Verizon > > Silver Spring, MD 20904 > > Phone: 301 502-1347 > > Email: [email protected] > > > > -- Gyan Mishra Network Engineering & Technology Verizon Silver Spring, MD 20904 Phone: 301 502-1347 Email: [email protected]
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