Hi,
At
least the responses contain the information on which values are being
returned, so to some extent one can simply use that as a kind of
correlator.
However, I agree that a correlator field might well be useful to
correlate requests and responses, but I'd recommend calling it a correlator
rather than a sequence number, and avoid any language requiring it to be
incremented in each request etc. Simply say that the correlator from the
variable request PDU should be returned in each resulting variable response
PDU - then, anyone who wanted to, could set it to a unique value, and
anyone else could just set it to zero and ignore it when
returned.
Does
anyone else have an opinion?
Cheers,
-- John
Variable Request and
Response PDUs don't have a sequence number field.
If one is allowed to send multiple outstanding
Variable Requests, then how is to
match a response to its corresponding request? Should not we introduce a sequence
number? Sure, to some extent one could match
them by looking at what variables are included, but it's not a sure
way.
If the intention is not
to allow more than one Variable Request at a time, which I think is
reasonable in order to keep the OAM operation simple, then a note to that
effect in the standard would be nice.
Your comments are
welcome and appreciated.
Regards,
Yonghong Ren
Appian Communications