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Hello Protocol and 2-Hop Neighbor Info Hellos append LLS to advertise 2-hop Neighborhood and enable differential hellos Full State Hello Includes all neighbors in state Init or greater. Sent every 2HopRefresh Hellos (on each MANET interface). Differential Hello Reduce overhead and allow for faster response to topology changes Includes only neighbors changed within the last HelloRepeatCount Hellos. 2-hop Neighbor Information: Maintained by each router and used by the MDR selection algorithm. |