RE: iscsi : target originated login negotiations.

["Rod Harrison" <rod.harrison@windriver.com>]

	There is some confusion here. I've been assuming that if I send a key
that is not returned it means the other side is happy with my choice,
but I recently read somewhere in one of the drafts that this actually
means the default choice should be taken.

	We do need to spell this out clearly.

	- Rod

-----Original Message-----
From: owner-ips@ece.cmu.edu [mailto:owner-ips@ece.cmu.edu]On Behalf Of
Santosh Rao
Sent: Friday, September 28, 2001 1:30 AM
To: IPS Reflector
Subject: iscsi : target originated login negotiations.


All,

I have a question on how the target originated negotiation works. The
draft describes this as :

"The target may offer key=value pairs of its own. Target requests are
not limited to matching key=value pairs as offered by the initiator.
However, the initiator always controls the request-response initiation
and termination."

Here's my question, taking a specific scenario as an example :

Assume ImmediateData defaults to "yes" [as is currently the case].
Consider an initiator that wishes to use immediate data attempting to
login with a target that does not support immediate data.

I -> T : (does not explicitly send ImmediateData key, since the
default
is its desired value).

T -> I : ImmediateData="no" (No ImmediateData key is received. Hence,
target needs to originate this key to indicate that it does not
support).

Is this considered the end of the negotiation, or does the initiator
(who is the responding party in this case) need to respond to the
offered key with a response indicating :
I -> T : ImmediateData="no"

Also :

a)  how does the above work in the case of list negotiation ?

b) What is meant by "the initiator always controls the
   request-response initiation and termination." (?).
   Could this be stated more clearly ?

Thanks,
Santosh


--
##################################
Santosh Rao
Software Design Engineer,
HP-UX iSCSI Driver Team,
Hewlett Packard, Cupertino.
email : santoshr@cup.hp.com
Phone : 408-447-3751
##################################