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]
_______________________________________________ BESS mailing list [email protected] https://www.ietf.org/mailman/listinfo/bess
