Description: The EVPN information in the Network Layer Reachability Information field. BGP EVPN prefix includes: [1][ESI][EthernetTagID]: ESI: each Ethernet segment(ES) is identified by a unique non-zero identifier called an Ethernet Segment Identifier. EthernetTagID: This attribute identifies a particular broadcast domain in an EVPN instance. [2][EthernetTagID][MACLength][MAC][IPAddressLength][IPAddress] [3][EthernetTagID][IPAddressLength][IPAddress] [4][ESI][IPAddressLength][IPAddress] [5][EthernetTagID][IPAddressLength][IPAddress] [6][EthernetTagID][MulticastSourceLength] [MulticastSourceAddress][MulticastGroupLength] [MulticastGroupAddress][OriginatorRouterLength] [OriginatorRouterAddress] [7][ESI][EthernetTagID][MulticastSourceLength] [MulticastSourceAddress][MulticastGroupLength] [MulticastGroupAddress][OriginatorRouterLength] [OriginatorRouterAddress][LeaveGroupSyn] LeaveGroupSyn: This attribute identifies the specific (x, G) leave group synchronization procedure initiated by the advertising PE, which increments the value whenever it initiates a procedure. [8][ESI][EthernetTagID][MulticastSourceLength] [MulticastSourceAddress][MulticastGroupLength] [MulticastGroupAddress][OriginatorRouterLength] [OriginatorRouterAddress][LeaveGroupSyn]