- multi-interface nodes - Shall the whole mesh know about all interfaces and if so in what manner?
- multi-link optimization strategies - What's the best way to squeeze out more performance?
- Multipath load balancing?
- Channel interference mitigation?
- How is multicast/broadcast done in the mesh based on the routing protocol?
- Zeroconf/Bonjour support?
- Support for multiple gateways?
- Support for different kinds (and prioritizations) of gateways.
- Has routing protocols some way to peer with other networks? Routing protocol interoperability? Peer over multiple wireless links?
- Support for data/packet prioritization (QoS)?
Does it work with encrypted WiFi?
- Security, traffic injection/reflection.
- IP conflict detection, mitigation?
- Support for client roaming?
- Node mobility.
- Max size of the network?
- Topology of the whole mesh at some moment is accessible?
- Which data structures are used internally? Complexity?
- Extensibility of protocols.
- Routing loops.
- How routing protocol survives the reboot? Does it need flash/persistent storage?
- Link measurements - only packet loss, other metrics?