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Subject: Issue 26: retransmission


Issue 26

-----Original Message-----
From: Paul Fremantle [mailto:paul@wso2.com]
Sent: Thursday, November 02, 2006 3:40 PM
To: ws-rx@lists.oasis-open.org
Subject: [ws-rx] NEW ISSUE: retransmission

We do not normatively state that any messages must be retransmitted
unless the server Nacks them.

Since the Protocol Invariants are there to explain how we actually
ensure reliable transmission, that is the appropriate place to add this.

Proposal:

Add a new invariant:
While the Sequence is not closed or terminated, the RMS must retransmit
any messages that are missing from the most recent acknowledgement message.



-------- Original Message --------
Subject:        [ws-rx] Potential new issue: retransmission
Date:   Wed, 01 Nov 2006 12:22:25 +0000
From:   Paul Fremantle <paul@wso2.com>
Organisation:   WSO2
To:     ws-rx@lists.oasis-open.org <ws-rx@lists.oasis-open.org>



While looking at PR016, I could only find three places where we
normatively define retransmission:

1. Upon receipt of a NACK, you must retransmit that message
2. Upon MessageNumberRollover, you must continue to retransmit messages
3. In the state tables, we have a state corresponding to this.

Given that NACK is optional, MessageNumberRollover highly unlikely,
doesn't seem like we've defined this very well!

How about adding as a protocol invariant that the RMS must retransmit
unacknowledged messages?

Paul

--
Paul Fremantle
VP/Technology and Partnerships, WSO2
OASIS WS-RX TC Co-chair

http://bloglines.com/blog/paulfremantle
paul@wso2.com
(646) 290 8050

"Oxygenating the Web Service Platform", www.wso2.com





--
Paul Fremantle
VP/Technology and Partnerships, WSO2
OASIS WS-RX TC Co-chair

http://bloglines.com/blog/paulfremantle
paul@wso2.com
(646) 290 8050

"Oxygenating the Web Service Platform", www.wso2.com




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