David:
Sorry for the delayed response. I agree with you that the Via element should
be used exclusively for those cases where intermediaries are involved.
Therefore, it makes sense to move the syncReply and ackRequested attributes
to be under the QualityOfServiceInfo element.
Since there already is a deliverySemantics attribute under the
QualityOfServiceInfo element, and the reliableMessagingMethod attribute can
vary from one hop to another, I think reliableMessagingMethod should stay in
the Via element.
Regards,
-Arvola