Abstract: A network device may receive, from an origination device associated with a first VxLAN, traffic destined for a destination device associated with a second VxLAN, wherein the network device is a VTEP of the first VxLAN. The network device may identify an address of the destination device included in the traffic and may thereby determine an anycast address associated with an EVPN DCI that is associated with the first VxLAN and the second VxLAN. The network device may determine, based on the anycast address, respective unicast addresses of a plurality of gateway network devices associated with the EVPN DCI, and may thereby identify a particular gateway network device, of the plurality of gateway network devices, to which the traffic is to be forwarded. The network device may forward the traffic to a unicast address of the particular gateway network device.

Abstract: Techniques are described for providing targeted selection of cascade ports of an aggregation device. In one example, the disclosed techniques enable dynamic assignment of active and backup cascade ports of an aggregation device for each extended port of satellite devices. In this example, rather than allocating resources for each of the extended ports of the satellite devices on all of the cascade ports of the aggregation device, the aggregation device instead allocates resources for each of the extended port only on the assigned active and backup cascade ports for the respective one of the extended ports of the satellite devices. The techniques are also described for providing traffic steering to a backup cascade port in the event the assigned active cascade port is unreachable, and, if the cascade port remains unreachable for a specified duration, the aggregation device may assign new active and backup cascade ports for the extended port.

Abstract: In one example, a network device includes an interface card comprising a physical network interface; a forwarding component associated with the interface card; a control unit comprising one or more processors, wherein the control unit is configured to program the forwarding component to configure sets of one or more valid media access control (MAC) addresses in association with respective logical interfaces of a plurality of logical interfaces configured for the physical interface, wherein the forwarding component is configured to identify a logical interface of the plurality of logical interfaces with which to process a packet received by the network device at the physical interface, and wherein the forwarding component is configured to, in response to a determination that the set of valid MAC addresses associated with the identified logical interface does not include a valid MAC address that matches a destination MAC address of the packet, drop the packet.

Abstract: Techniques are described for providing targeted selection of cascade ports of an aggregation device. In one example, the disclosed techniques enable dynamic assignment of active and backup cascade ports of an aggregation device for each extended port of satellite devices. In this example, rather than allocating resources for each of the extended ports of the satellite devices on all of the cascade ports of the aggregation device, the aggregation device instead allocates resources for each of the extended port only on the assigned active and backup cascade ports for the respective one of the extended ports of the satellite devices. The techniques are also described for providing traffic steering to a backup cascade port in the event the assigned active cascade port is unreachable, and, if the cascade port remains unreachable for a specified duration, the aggregation device may assign new active and backup cascade ports for the extended port.