Local-bias forwarding of L2 multicast, unknown unicast, and broadcast traffic for an ethernet VPN

A method comprising:

• receiving, by a first provider edge (PE) device of a plurality of PE devices configured with an Ethernet Virtual Private Network (EVPN) instance comprising one or more broadcast domains reachable by a plurality of Ethernet segments connecting the plurality of PE devices to a plurality of customer edge (CE) devices, an EVPN route comprising a local-bias label, wherein the EVPN route comprises a Border Gateway Protocol extended community that
• includes the local-bias label, and wherein the Border Gateway Protocol extended community comprises one of an Ethernet Segment Identifier extended community and a Local-Bias extended community;
• receiving, by the first PE device, an L2 packet for the first EVPN instance with the local-bias label, via an intermediate layer 3 network interconnecting the plurality of PE devices;
• and
• outputting, by the first PE device in response to determining a second PE device, of the plurality of PE devices, that is indicated by the local-bias label does not have a local interface for a first Ethernet segment of the plurality of Ethernet segments, the L2 packet on a local interface of the first PE device for the first Ethernet segment.

A first provider edge (PE) device comprising:

• a memory;
• and
• one or more processors operably coupled to the memory,
• wherein the one or more processors and memory are configured to:
• receive configuration data configuring the first PE device with an Ethernet Virtual Private Network (EVPN) instance comprising one or more broadcast domains reachable by a plurality of Ethernet segments connecting a plurality of PE devices, including the first PE device, to a plurality of customer edge (CE) devices,
• receive first EVPN routes, wherein the plurality of Ethernet segments include all Ethernet segments advertised by any of the plurality of PE devices configured with the EVPN instance, and
• configure, in response to a determination the first EVPN routes indicate the first PE device has a local interface for all Ethernet segments advertised by any of the plurality of PE devices configured with the EVPN instance, forwarding information of the first PE device to cause the first PE device to perform local-bias forwarding of layer 2 (L2) packets for the EVPN instance.

A first provider edge (PE) device comprising:

• a memory;
• and
• one or more processors operably coupled to the memory,
• wherein the one or more processors and memory are configured to:
• receive configuration data configuring the first PE device with an Ethernet Virtual Private Network (EVPN) instance comprising one or more broadcast domains reachable by a plurality of Ethernet segments connecting a plurality of PE devices, including the first PE device, to a plurality of customer edge (CE) devices,
• receive an EVPN route comprising a local-bias label, wherein the EVPN route comprises a Border Gateway Protocol extended community that includes the local-bias label, and wherein the Border Gateway Protocol extended community comprises one of an Ethernet Segment Identifier extended community and a Local-Bias extended community,
• receive an L2 packet for the first EVPN instance with the local-bias label via an intermediate layer 3 network interconnecting the plurality of PE devices, and
• output, in response to determining a second PE device, of the plurality of PE devices, that is indicated by the local-bias label does not have a local interface for a first Ethernet segment of the plurality of Ethernet segments, the L2 packet on a local interface of the first PE device for the first Ethernet segment.