Issue 122 - WS-Discovery - MessageNumber rollover

[Ram Jeyaraman <Ram.Jeyaraman@microsoft.com>]

This issue is assigned the number 122. For further discussions on this issue, please refer to this issue number or use this thread.

 

From: Dan Driscoll
Sent: Monday, December 15, 2008 4:15 PM
To: Ram Jeyaraman
Subject: NEW Issue: WS-D: MessageNumber rollover

 

WS-Discovery does not describe what to do when MessageNumber exceeds its value space.  I propose adding text that senders should increment InstanceId to avoid exhausting MessageNumber.

 

/s:Envelope/s:Header/d:AppSequence/@MessageNumber

Identifies a message within the context of a sequence identifier and an instance identifier. MUST be incremented by >= 1 for each message sent.  Upon rollover, InstanceId SHOULD be incremented to preserve ordering semantics.  Transport-level retransmission MUST preserve this value.

 

Typically InstanceId should not be arbitrarily incremented, but MessageNumber rollover is unlikely, and this behavior would be valuable in this end case.