Hi all, Our group is writing an application for outdoor testbed using Ctp and Deluge. We are using micaz and iris motes. Before deployment, we want to do as much test as possible to make sure the application is working fine so that least maintenance is needed when deployed. It is working well most of the time, but we encountered node failure for certain situations (we repeat the tests several times, and node fails every time).
We are trying to simulate the situation in tree routing that, if the bottleneck node fails and the rest network cannot find a valid routing to base station, the rest of the network should keep running until the bottleneck node is recovered. Our method is to turn off the base station, let the rest network running for a time interval (the interval we have tested ranges from tens of minutes to overnight), then turn on the base station again. We hope all the node can reconnect to the base station. In every test, one IRIS node would fail to reconnect, and from the sniffer, we observed no packets from that node (no routing packet, no data packets, no deluge packets, no anything). We think the node is "dead", but we don't know what would cause this. Deluge packets are not a problem, because we disabled deluge beacons at node booted event. And RAM size is also not a problem, our application is about 4K for IRIS node, while the RAM for IRIS node is 8K. Does anyone encountered a problem like this, a node suddenly stops working? Any help will be highly appreciated! Best, Xiaoyang
_______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
