How does TIB/Rendezvous compare to Marimbas Castanet and other similar products?
MB: It comes down to three things: 1. “True Push” – TIB/Rendezvous (“RV”) not only presents a publish/subscribe interface to its users, but it actually performs the dissemination of information in a true pro-active fashion. Messages are sent on the network only when changes actually happen, pro-actively, from the publisher (Marimba’s transmitter) to the subscriber (tuner). We use IP multicast to accomplish this and to get the huge one-to-many fan-out required for real, scalable Push applications. Most of the rest of the so-called Push applications, including Castanet, use TCP/IP – a point-to-point protocol – under the covers and are really repeatedly polling from the tuner to the transmitter. This is a little like covering a hole in the floor with carpeting – it doesn’t help the problem, just makes it look better. 2. “End-User versus Middleware” – This is why most of these vendors (our marketing folks, kfarmer@tibco.com, can get you the current, complete list) have signed up to use RV
