Multipoint-to-Multipoint (M2M) transport service

Multipoint-to-Multipoint (E-LAN in the MEF classification, hereinafter also referred to as the M2M service) is a transport service that involves establishing a peer connection between interfaces of CPE devices on top of the local Ethernet network for communication and joint performance of tasks in a common networking environment without a centralized controller and a clearly defined hierarchy.

To populate the MAC table on the SD-WAN Controller, the M2M service uses the so-called MAC learning mechanism. At the same time, a separate bridge domain is also organized on each CPE device and the CPE device contains a separate table of MAC addresses.