BUM traffic handling is given to the overlay network by configuring VXLAN ingress-node- replication instead of multicast overlay In an EVPN-VXLAN environment, EVPN multihoming active-active mode is used instead of MC- LAG for redundant connectivity between hosts and leaf devices.
In active-active mode, each of the multihomed PE device advertises a mandatory autodiscovery route per Ethernet segment as in the active-standby state. However, in the active-active state, the autodiscovery route per Ethernet segment is modified such that the active-standby bit carried in the MPLS extended community is cleared to indicate that the active-active mode is in operation.