[Voyage-linux] Enabling Multicast in Voyage

[Laili Aidi]

Hello,

Thank you for the respond. Currently I'm trying to develop openWSN application in VoyageOS, i used SunSPOT. I have problem on make this application running in VoyageOS, while I know the same application just run properly in my Ubuntu machine. The application actually consist of sender, which is the SunSPOT mote; and the receiver, which is the SunSPOT basestation.

The sender open broadcast connection to some port (I specify the free port, exp 1501)
// Open up a broadcast connection at the data sink port where the 'on Desktop' portion of this demo is listening
RadiogramConnection rCon = (RadiogramConnection) Connector.open("radiogram://broadcast:" + DATA_SINK_PORT);
Datagram dg = rCon.newDatagram(rCon.getMaximumLength());

And the receiver listen with the same port:
RadiogramConnection rCon = (RadiogramConnection) Connector.open("radiogram://:" + DATA_SINK_PORT);

The guys in sunSPOT mentioned (https://www.sunspotworld.com/forums/viewtopic.php?f=35&t=1701)
"p.s. Some Linux distributions (such as SuSE) do not have multicasting enabled by default. This prevents use of a shared basestation, but shouldn't throw any exceptions. Note: You can run the route add -net 224.0.0.0 command to enable multicast routing."

I got java.net.SocketException before, then after make all of my interfaces multicast enabled, it is disappear. But I'm still suffer with another error relate to the socket, which I dont know how to solve that yet:
Exception in thread "main" com.sun.spot.peripheral.SpotFatalException: Encountered IO Exception attempting to open server socket: voyage: voyage
(the same application run well in the other machine: ubuntu, window, and osx). I believe there is some configuration need to be changed in my VoyageOS, not in the application.

Aidi

On 6 okt 2011, at 17.26, <erik.linder at accenture.com<mailto:erik.linder at accenture.com>>
 wrote:

it is mainly a problem of your application. By default voyage will support all multicast traffic (joining a stream, sending streams). however if you need to be able to route multicast traffic then you will need additional software like  mrouted.

without knowning what your app is doing it is hard to comment further

cheers
Erik


________________________________
From: voyage-linux-bounces+erik.linder=accenture.com at list.voyage.hk<mailto:voyage-linux-bounces+erik.linder=accenture.com at list.voyage.hk> [voyage-linux-bounces+erik.linder=accenture.com at list.voyage.hk] On Behalf Of Laili Aidi [aidi at kth.se]
Sent: Thursday, October 06, 2011 5:19 PM
To: Jeff Ramin
Cc: <voyage-linux at voyage.hk<mailto:voyage-linux at voyage.hk>>
Subject: Re: [Voyage-linux] Enabling Multicast in Voyage

Dear Jeff,

Thank you. I'm wondering what is the necessary steps?

Aidi

On 6 okt 2011, at 17.01, Jeff Ramin wrote:


FWIW - we're running an app that utilizes multicast on voyage, and none of
those steps have been necessary for us.


On 10/06/2011 09:53 AM, Artie Gold wrote:
See, for example: http://www.dancres.org/bjspj/docs/docs/linux.html

All you probably need to do is to add the route for multicasting...

HTH,
--ag


On Thu, Oct 6, 2011 at 9:28 AM, Laili Aidi <aidi at kth.se<mailto:aidi at kth.se>> wrote:
Hello,

Maybe this is very trivia question.
Currently I'm dealing with application which need multicast support to be enabled in the OS. How can I make it to the Voyage?

Aidi
_______________________________________________
Voyage-linux mailing list
Voyage-linux at list.voyage.hk<mailto:Voyage-linux at list.voyage.hk>
http://list.voyage.hk/mailman/listinfo/voyage-linux



--
Artie Gold
Principal Software Engineer
Under Assistant West Coast Promo Man

F4W, Inc.

===================================================
Elegance is not a dispensable luxury but a factor that decides between success and failure.
--Edsger Dijkstra



_______________________________________________
Voyage-linux mailing list
Voyage-linux at list.voyage.hk<mailto:Voyage-linux at list.voyage.hk>
http://list.voyage.hk/mailman/listinfo/voyage-linux




--
Jeff Ramin
Software Engineer
Singlewire Software
2601 W Beltline Hwy #510
Madison, WI 53713

Phone Direct - 608.661.1172
www.singlewire.com<http://www.singlewire.com/>


_______________________________________________
Voyage-linux mailing list
Voyage-linux at list.voyage.hk<mailto:Voyage-linux at list.voyage.hk>
http://list.voyage.hk/mailman/listinfo/voyage-linux


________________________________
This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.voyage.hk/pipermail/voyage-linux/attachments/20111006/8d703a15/attachment.html>