- From: Frank DeRose <frankd@tibco.com>
- Date: Tue, 5 Dec 2000 14:57:33 -0500 (EST)
- To: "xml-dist-app-request@w3.or" <xml-dist-app-request@w3.org>
Isn't the issue of multicast addressed in R502? The wording of R502 is: "The specification developed by the Working Group must support either directly or via well defined extension mechanisms different messaging patterns and scenarios. The specification will directly support One-way and Request-response patterns as part of permanently and intermittently connected scenarios. The specification will not preclude the development of other patterns at either the application or transport layers. Examples of such patterns may include Publish-subscribe or Multicast delivery. All patterns and scenarios will be described by relevant use cases." TIBCO wants an assurance that the specification will not preclude the use of XP over multicast transports. I interpret R502 as supplying such an assurance. This shouldn't be a problem. After all, it is already possible to use SOAP over multicast transports. I would be interested in hearing the opinions of other implementors of Pragmatic General Multicast protocol. For example, are the folks from Microsoft satisfied that R502 implies that the specification will not preclude the use of XP on top of their implementation of PGM? If such an assurance is implied in R502, I suggest dropping DR028 and the duplicate DR025 altogether. On the other hand, if you are suggesting, Jean-Jacques, that the use of XP on top of multicast protocols will be precluded, then I have a problem. One further nit: I would suggest rewording R502 to read: "Examples of such patterns include Publish-subscribe or Multicast delivery." In other words, drop the word "may." (Gee, I don't know why I would be preoccupied with possible interpretations of such words as "may" and "must" lately.) Frank DeRose TIBCO Software Inc. 3165 Porter Dr Palo Alto, CA 94303 650-846-5570 (vox) 650-846-1267 (fax) frankd@tibco.com www.tibco.com -----Original Message----- From: xml-dist-app-request@w3.org [mailto:xml-dist-app-request@w3.org]On Behalf Of Jean-Jacques Moreau Sent: Friday, December 01, 2000 7:11 AM To: xml-dist-app@w3.org Subject: DR 28: Multicast Current text for DR 28 ----------------------- Multicast should be supported (not inventing multicast solutions) Issue (i.028.01): Duplicate. Proposed rewording --------------------- The XML Protocol will not support multicast, at least initially. Jean-Jacques.
Received on Tuesday, 5 December 2000 16:03:26 UTC