Split-horizon packet forwarding in a multi-home pbb-evpn network

A method comprising:

• receiving, by a first provider edge (PE) device and from a second PE device that implement a provider backbone bridging Ethernet Virtual Private Network (PBB-EVPN), a packet via a core-facing interface of the first PE device, wherein the first and second PE devices are coupled to a multi-homed customer edge (CE) device by an Ethernet segment, and wherein the first PE device has been elected a designated forwarder for forwarding packets from the PBB-EVPN to the CE device over the Ethernet segment;
• determining, by the first PE device, that the received packet was previously received on a local interface associated with the Ethernet segment of the second PE device and forwarded into the PBB-EVPN by the second PE device;
• in response to determining that the received packet was previously received on the local interface associated with the Ethernet segment of the second PE device and forwarded into the PBB-EVPN by the second PE device, assigning a local interface of the first PE router associated with the Ethernet segment as an ingress interface of the received packet instead of the core-facing interface of the first PE device on which the packet was received from the PBB-EVPN;
• and
• applying split-horizon forwarding, based on the assigned ingress interface, to process the received packet without forwarding the received packet out the local interface to the Ethernet segment coupling the first PE device to the CE device.