In NX-OS 9.3(5) a new EVPM Multi-Site feature, "Dual RD" support was added, and enabled by default. Is there any explanation as to how the feature operates, what problem it solves, and whether it affects the configuration of <9.3(5) BGWs?
The documentation I have found is what's here:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/93x/vxlan/configuration/guide/b-cisco-nexus-9000-series-nx-os-vxlan-configuration-guide-93x/b-cisco-nexus-9000-series-nx-os-vxlan-configuration-guide-93x_chapter_01001.html
Does the RT rewrite still work in the same way between sites (eBGP peers), given the following extract:
"In the BGP control plane for releases prior to Cisco NX-OS Release 9.3(5), BGP sessions between the BGWs rewrite the next hop information of EVPN routes and reoriginate them. Beginning with Cisco NX-OS Release 9.3(5), reorigination is always enabled (with either single or dual route distinguishers), and rewrite is not performed."
