Hi, In the first scenario both of Node 2 and Node 3 generate their own data. Just now, I tested to make Node 2 just as a forwarder/repeater (didn't generate any data) and its result become more better with number of packet 11,967 packets (generate by Node 3), I got 59 packets was failed to send. I think this result can be accepted.
could anyone give me advices or information how to reduce the number of failed packets, if I want to make node 2 as a forwarder and also generates its own data (my first scenario)? is this problem caused by buffer size in which request to send is full? should I change some radio parameters? or how to debug to get the detail problem. (I have tested AM debug, but it's not gave me detail information about the problem). Thanks in advance. Fajar. > > Dari: Fajar Lab <fajar...@yahoo.co.id> > Judul: [Tinyos-help] message was failed to send > Kepada: tinyos-help@millennium.berkeley.edu > Tanggal: Jumat, 15 Juli, 2011, 6:40 AM > Hi all, > > I am testing a simple application to send a message using > TyMo protocol and simulate it in TOSSIM(T2). These are my > scenario: > > -Topology (Node 1 as its destination) > 1 2 0.0 > 2 1 0.0 > 2 3 0.0 > 3 2 0.0 > > -Node 2 and 3 will send a message every 5 seconds (5048 ms) > to destination (Node 1), my message structure has two fields > (nx_uint32_t packetID and nx_uint8_t data) > > -Boot time for each node (python script) > Node 1 at 1 seconds > Node 2 at 3 seconds > Node 3 at 4 seconds > > I use meyer-heavy file for its noise model (from TOSSIM > tutorial) > > if a number of packets less than 1000 packets, it seems ok. > (even though some packets was failed to send but it's still > small). > > But, if I try to send more packets such as 7706 packets, I > got about 3793 packets were failed to send (from Node 3) I > think it's very large, I logged this in sendDone() event. > > I think, the result is not normal, > is the problem caused by TyMo protocol? > or buffer size for request to send is full? > > could anyone give me some advices or information what is > the problem? > I appreciate. > Thanks in advance. > > Fajar. > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@millennium.berkeley.edu > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
