Patent ID: 9264971
Filing Date: 2016-02-16
CPC Classification: H04L,H04W

Claim Text:
1. A method in a network device communicatively coupled to a local base station at a cell site for automatic creation of a more optimal route entry in the network device for inter-base station traffic to be transmitted between the local base station and a remote base station through a backhaul network, the method comprising: automatically discovering a remote Internet Protocol (IP) address of the remote base station based upon traffic transmitted by the local base station destined to the network device or based upon traffic transmitted between the local base station and the remote base station, wherein the remote IP address is utilized for the inter-base station traffic; responsive to said discovering of the remote IP address of the remote base station, generating a unique route target (RT) value based upon the discovered remote IP address; inserting the unique RT value into an import route target list, wherein the import route target list identifies RT values of routes that are to be installed by the network device; receiving, by the network device, a route update message transmitted by a second network device serving as a route reflector (RR) in the backhaul network, wherein the route update message follows a routing protocol and includes a set of one or more routes of the backhaul network, wherein one route of the set of routes comprises a prefix of the remote IP address and includes a RT value that is the same as the unique RT value, and wherein the one route is the more optimal route as it provides a shorter path to the remote base station through the backhaul network compared to a less optimal route through a mobile core network previously used for the inter-base station traffic; and installing a route entry into a routing table of the network device based upon determining that the RT value of the one route matches the unique RT value in the import route target list.