On Apr 25, 2008, at 11:48 AM, Nahr ... wrote: > > > 2008/4/25, Philip Levis <[EMAIL PROTECTED]>: > On Apr 25, 2008, at 9:23 AM, Nahr ... wrote: > Hi, > I have several questions, > > > if I defined only one root in EasyCollection application and I used > CTP or MultihopLQI as routing protocol. > Is it safe to do that? especially it is known that CTP make a set of > trees. > > > CTP does not make a set of trees. How is it known that it does so? > > Phil > > Hi, thanks for both omprakash and philip > > > Well I find that in teps 123: > CTP is a tree-based collection protocol. Some number of nodes in a > network advertise themselves as > > tree roots. Nodes form a set of routing trees to these roots. > >
Ah -- I see. Right. All distance-vector collection protocols (MultihopLQI, MintRoute, etc.) work this way. They just compute a minimum-cost path, so pick the closest root. While there might be more than one tree, if there's more than one root, any given node sends along a single tree. Phil _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
