Thank you very much for all of your valuable advises sorry for getting late to reply. i'm currently sending the beacon msg by the IP tunnel. haven't tested in a real deployment hope to get back to all of you with results. ranal > Subject: Re: [Tinyos-help] Dividing a CTP network > From: [email protected] > Date: Fri, 29 Jul 2011 17:19:49 -0700 > CC: [email protected] > To: [email protected] > > > On Jul 20, 2011, at 7:29 PM, ranal fernando wrote: > > > > > sorry for multiple mails. does anyone have any idea? at least about the > > feasibility of this? i thought of having some feedback from the community. > > > > Thanks. > > From: [email protected] > > To: [email protected] > > Date: Tue, 19 Jul 2011 19:48:29 -0400 > > Subject: [Tinyos-help] Dividing a CTP network > > > > Dear all, > > > > For my project i'm have to divide a ctp based network into two & then > > connect them through an IP link. So the root will be in one part of the > > network. & i'm going to send routing table information between the gateways > > using the IP link. > > > > > > Can you give me some suggestions about the feasibility of this? What type > > of a performance penalty will I have to pay for this? > > Why would you pay a performance penalty? I'm assuming that one node using the > IP link will advertise itself as a child of the other (e.g., you model the IP > link as a hop of low cost). To some degree, it's as if you set up another CTP > tree whose root advertises a non-zero cost. The two major differences in > behavior would stem from the fact that its cost is variable (so more loops > are possible) and the CTP hysteresis value for link change being a constant > (15) means high cost routes are more free to change next the next hop. > > Phil
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