Hi Holger,
Can you be more specific on what you want to do? Do you want the program
image disseminated and stored in all nodes but you choose which one will
load it, or you want only a specific node to store the image in its
memory, and then load it ? Because, as you know, the nodes first store
the image in the EEPROM, and when you give the appropriate command, they
load it and run it.
(1) the base station is a deluge node as every other node. It creates
its own messages to send to its neighbors. It doesn't function as a base
station really.
(2)(3) There is not any "forwarding" procedure. What happens is that
when a node (including the "base station") receives a new page of a
program image and store it in its EEPROM, then it advertises it and send
it to any other node that request it. The only difference with the base
station is that you "manually" download the image to the mote.
The easiest way to do what you want to do, is to let the image
disseminate in all the network and then permit to only the node with a
specific ID to load it and run it. But this doesn't disable the epidemic
behaviour of Deluge. If you want the nodes to just forward the packets
that they receive without storing them in EEPROM, then there will be
quite some code that you need to change. I would be glad to help though.
Yannis.
O/H Holger Marquardt έγραψε:
Hello all!
I'm trying to disable the epidemic behavior of Deluge 2.0. I want to program
only one Mica2 node selected by the Id.
If I make the nodes respond only to messages for their Id, the basestation (the
node connected to the pc) doesn't respond, too (well, that's good so far), but
it also doesn't forward any messages into the sensor network (that's bad...).
When I use the Id of the basestation, everything works fine for the
basestation. If I use TOSBase (what I don't want to) it doesn't work, too, no
node responds.
So I played a bit around, and my questions are now:
(1) Does the basestation forward every message into the network and vice versa or does it
send "own" messages?
(2) What is the sourceAddress from a message sent from pc into the network
after forwarding through the BS?
(3) When and how does a node decide to forward any message?
As example NetProgM.nc :
If a node recieves a netProgMsg, it sends a netProgMsg back to the sourceAddr,
with it's own Id as new sourceAddr. No forwarding, how can I then ping a node
other than the BS?
Any help (or any new ideas) would be greatly appreciated!
Thanks, Holger
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