Juniper Networks, Inc.

Avijit Basu

SelvaKumar Sivaraj

Babu Singarayan

Channasangamesh S Hugar

Pratibha Goel

Mukesh Kumar

Ajay V Gaonkar

Binu S

Sharan Rachanagouda Bhadragoudar

Techniques are described for providing aliasing in an active-active multi-homed Provider Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN) network. For example, PE devices of a multi-homed Ethernet segment may send packets received from the PBB-EVPN core network over the Ethernet segment to the customer device even if the receiving PE device has not learned the source MAC address of the CE device. In particular, the PE devices coupled to the multi-homed Ethernet segment may apply aliasing techniques in which a PE device performs a lookup of a BMAC address and the Customer Virtual Local Area Network (C-VLAN), instead of a lookup of a destination MAC address, to determine the path to send the data traffic.

Aliasing in an active-active multi-homed PBB-EVPN network

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.

Destination MAC validation per logical interface of a network device

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Bengaluru, India

Avijit Basu