The 7210 SAS does not support proxy-ARP and proxy-ND on spoke-SDP bindings. ARP or ND packets received on spoke-SDP bindings are not identified or sent to the CPU for further processing.
When using spoke-SDP bindings on the 7210 SAS, Nokia recommends that users disable proxy-ARP and proxy-ND functionality on all PEs belonging to the EVPN service, or enable the forwarding of ARP or ND packets over EVPN bindings on all PEs that belong to the EVPN service, so that ARP or ND packets are flooded throughout the EVPN instance.