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Routing Requirements Mesh Routing Requirements: Operation in the Adaptation Layer Support 16-bit and 64-bit Addressing No fragmentation of PHY layer frames Minimal Power Consumption PHY/MAC-layer indicators (ex: hop count + LQI) Simple and low computational complexity Operation with low routing state Code length to fit within small memory size Loop-Freeness For neighbor discovery avoid “hello” messages Link-layer mechanisms (such as ACKs or beacon responses) Robustness (independent of unresponsive nodes) Support dynamic topologies and mobile nodes High Scalability Reduce local repair and related control messages for intermediate nodes Protocol control messages MAY be secured Gateways/Sink Nodes (internetwork queries) |