Hi, On Thu, 2017-03-16 at 10:57 +0900, Masashi Honma wrote: > On some practical cases, it is useful to drop new node in the > distance. > Because mesh metric is calculated with hop count and without RSSI > information, a node far from local peer and near to destination node > could be used as best path. > > For example, the nodes are located in linear. Distance of 0 - 1 and > 1 - 2 and 2 - 3 is 20meters. 0 to 3 signal is very weak. > > 0 --- 1 --- 2 --- 3 > > Though most robust path from 0 to 3 is 0 -> 1 -> 2 -> 3, > unfortunately, node 0 could recognize node 3 as neighbor. Then node 3 > could be next of node 0. This patch aims to avoid such a case. I'm not really sure this is the right solution? It seems to me that it should be a function of the path selection to take this into account, not prohibiting the longer path entirely? It seems that this is really what the meshcfg.rssi_threshold was intended for, and the plink code *does* take it into account. Can you explain where that's breaking down? The documentation for this als talks about it being a plink threshold, so I'm not really sure we should use it to kick out stations entirely. johannes
