Route signaling and convergence in EVPN of port extenders

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 reachable by a port-extender Ethernet segment connecting a plurality of PE devices, including the first PE device, to a port-extender device,
• receive, from a second PE device of the plurality of PE devices, an EVPN route including information identifying an extended-port of the port-extender device associated with the port-extender Ethernet segment,
• store the information identifying the extended-port of the port-extender device associated with the port-extender Ethernet segment,
• receive, from the second PE device, a data packet comprising one or more labels identifying the port-extender Ethernet segment and the information identifying the extended-port;
• and
• apply split-horizon, based on the one or more labels identifying the port-extender Ethernet segment and the information identifying the extended-port, to process the received data packet.

A non-transitory computer-readable medium comprising instructions for causing one or more programmable processors to:

• receive configuration data configuring the PE device with an Ethernet Virtual Private Network (EVPN) instance reachable by a port-extender Ethernet segment connecting a plurality of PE devices, including the first PE device, to a port-extender device,
• receive, from the second PE device of the plurality of PE devices, an EVPN route including information identifying an extended-port of the port-extender device associated with the port-extender Ethernet segment,
• store the information identifying the extended-port of the port-extender device associated with the port-extender Ethernet segment,
• receive, from the second PE device, a data packet comprising one or more labels identifying the port-extender Ethernet segment and the information identifying the extended-port;
• and
• apply split-horizon, based on the one or more labels identifying the port-extender Ethernet segment and the information identifying the extended-port, to process the received data packet.