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03.04.2008 at 04:42PM PST, ID: 23214640
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7.8

In Tibco Rendezvous, what information is sent BACK from the receiver to the sender?

Asked by skimee in User Datagram Protocol (UDP), Miscellaneous Networking, Linux Networking

Tags: , ,

Hello Everyone,

I'm hoping that someone will be able to answer a question I have about Tibco Rendezvous.  I'm new to it and understand some of it, but I'm confused about something.

Let's say I have a machine named "Publisher1" running RV, and, like its name suggests, this machine publishes large amounts of data.  The network parameter for one of its transports is set up as:

eth1;239.5.5.36;239.5.5.35

I know what this means (or, at least I think I know what this means).  It means that the related transport will be set up on eth1, and that the machine will join the multicast group "239.5.5.36," but it will send the data associated with this RV transport to the multicast address "239.5.5.35."  The machine will not join the ".35" multicast group, it will just send data to it.  I see values like this all the time in my production environment.

On the receiving machines, I see the same values, but in reverse order.

eth0; 239.5.5.35;239.5.5.36

Again, I understand that, for the receiving machines, this means that the relevant RV transport should use eth0, and that it should join the multicast group 239.5.5.35, but send its data to .36.  I understand why the order of the multicast addresses on the publisher and subscriber are reversed.

My question is, what kind of messages would be sent to the multicast group 239.5.5.36?  (This is the multicast group that Publisher1 joined, and that the subscribers are sending to.)  It's obvious to me what kind of information the publisher would send to the subscribers, but I don't know what kind of information the subscribers would send back to the publisher.  Is that multicast group used when a receiver needs to tell the publisher that it needs to retransmit data because the receiver lost some packets?  Is that what that channel is used for?

Any help would be appreciated.


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Keywords: In Tibco Rendezvous, what informatio…
 
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[+][-]03.05.2008 at 09:09AM PST, ID: 21052134

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Zones: User Datagram Protocol (UDP), Miscellaneous Networking, Linux Networking
Tags: Tibce, Rendezvous, 7
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Solution Provided By: ebjers
Participating Experts: 1
Solution Grade: A
 
 
[+][-]09.04.2008 at 06:53AM PDT, ID: 22387267

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[+][-]09.09.2008 at 07:49PM PDT, ID: 22434376

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