A provider edge device, comprising: one or more memories; and one or more processors configured to: receive a first media access control, MAC, /Internet Protocol, IP, route advertisement, the first MAC/IP route advertisement identifying a MAC route, or a MAC and IP route, relating to an endpoint device; generate and advertise a MAC/IP route proxy advertisement based on the MAC route or the MAC and IP route, wherein the MAC/IP route proxy advertisement relates to a route that is remotely learned by the provider edge device; detect a potential decrease in reliability of the MAC route or the MAC and IP route; broadcast an address resolution protocol/neighbor discovery protocol request for MAC/IP address information relating to the endpoint in order to verify the reliability of the MAC route or the MAC and IP route; determine, based on the request, whether the reliability of the MAC route, or the MAC and IP route, has decreased; and perform an action to cause withdrawal of the MAC/IP route proxy advertisement based on determining that the reliability of the MAC route, or the MAC and IP route, has decreased, or to cause a second MAC/IP route advertisement that identifies the MAC route, or the MAC and IP route, to be advertised, based on determining that the reliability of the MAC route, or the MAC and IP route, has not decreased. one or more memories; and one or more processors configured to: receive a first media access control, MAC, /Internet Protocol, IP, route advertisement, the first MAC/IP route advertisement identifying a MAC route, or a MAC and IP route, relating to an endpoint device; generate and advertise a MAC/IP route proxy advertisement based on the MAC route or the MAC and IP route, wherein the MAC/IP route proxy advertisement relates to a route that is remotely learned by the provider edge device; detect a potential decrease in reliability of the MAC route or the MAC and IP route; broadcast an address resolution protocol/neighbor discovery protocol request for MAC/IP address information relating to the endpoint in order to verify the reliability of the MAC route or the MAC and IP route; determine, based on the request, whether the reliability of the MAC route, or the MAC and IP route, has decreased; and perform an action to cause withdrawal of the MAC/IP route proxy advertisement based on determining that the reliability of the MAC route, or the MAC and IP route, has decreased, or to cause a second MAC/IP route advertisement that identifies the MAC route, or the MAC and IP route, to be advertised, based on determining that the reliability of the MAC route, or the MAC and IP route, has not decreased. receive a first media access control, MAC, /Internet Protocol, IP, route advertisement, the first MAC/IP route advertisement identifying a MAC route, or a MAC and IP route, relating to an endpoint device; generate and advertise a MAC/IP route proxy advertisement based on the MAC route or the MAC and IP route, wherein the MAC/IP route proxy advertisement relates to a route that is remotely learned by the provider edge device; detect a potential decrease in reliability of the MAC route or the MAC and IP route; broadcast an address resolution protocol/neighbor discovery protocol request for MAC/IP address information relating to the endpoint in order to verify the reliability of the MAC route or the MAC and IP route; determine, based on the request, whether the reliability of the MAC route, or the MAC and IP route, has decreased; and perform an action to cause withdrawal of the MAC/IP route proxy advertisement based on determining that the reliability of the MAC route, or the MAC and IP route, has decreased, or to cause a second MAC/IP route advertisement that identifies the MAC route, or the MAC and IP route, to be advertised, based on determining that the reliability of the MAC route, or the MAC and IP route, has not decreased.