TOI Author :: Hyun Chul Chung

A mDNS Gateway extends the link-local scope of mDNS messages to additional subnets to provide service discovery and domain name resolution over an extended link-local multicast domain. A mDNS gateway can also peer with additional mDNS gateways to extend the logical link-local multicast domain to include directly connected subnets on a mDNS gateway peer.

As of EOS 4.22.0F, EVPN all active multihoming is supported as a standardized redundancy solution.  Redundancy

This feature enables support for migrating from only using VCS as the control plane to only using EVPN as a control