Abstract: Embodiments of the invention provide efficient ways to transmit Broadcast, unknown Unicast, or Multicast (BUM) traffic for multiple Ethernet Virtual Private Network (EVPN) Instances (EVIs). In one embodiment, a method is performed by a network device, the method comprises identifying a plurality of sets of network devices, each set of network devices to include network devices belonging to one Ethernet Virtual Private Network (EVPN) Instance (EVI) of a plurality of EVIs, for which the network device serves as an ingress network device; selecting an aggregation set of network devices from the identified network devices to set up an aggregation tunnel label switched path (LSP) for multiple EVIs of the plurality of EVIs; and transmitting broadcast, unknown unicast, or multicast (U) traffic for the multiple EVIs using the aggregation tunnel LSP.

Abstract: A method and an apparatus for enhancing multicast group membership protocols are described. An adjacent multicast network device, coupled with a plurality of host NDs, determines the number of host NDs that are to receive query messages. The adjacent multicast ND determines its current processing capacity for processing group membership reports to be received from the host NDs. The adjacent multicast ND determines a query response interval based on the number of host NDs and its current processing capacity. The adjacent multicast ND transmits, to each one of the plurality of host NDs, a query message including the query response interval. The query message causes the adjacent multicast ND to receive from each one of the plurality of host NDs a group membership report at a time interval defined based on the query response interval.

Abstract: A method and an apparatus for enhancing multicast group membership protocols are described. An adjacent multicast network device, coupled with a plurality of host NDs, determines the number of host NDs that are to receive query messages. The adjacent multicast ND determines its current processing capacity for processing group membership reports to be received from the host NDs. The adjacent multicast ND determines a query response interval based on the number of host NDs and its current processing capacity. The adjacent multicast ND transmits, to each one of the plurality of host NDs, a query message including the query response interval. The query message causes the adjacent multicast ND to receive from each one of the plurality of host NDs a group membership report at a time interval defined based on the query response interval.