Re: Can SendTarget command be part of a Text Request Sequence

[Julian Satran <Julian_Satran@il.ibm.com>]

Unfortunately I do not think it warrants
an errata. And the role of the C bit is stated explicitly enough. Julo

Pradeep Vincent <vpradeep@us.ibm.com>

18/09/04 20:49

To	ips@ietf.org, Julian Satran/Haifa/IBM@IBMIL
cc
Subject	Re: Can SendTarget command be part of a Text Request Sequence

Ok. That makes sense. So would be this be closer to what
it really means - 

A SendTargets command consists of a 
> single Text request sequence.This
sequence
contains exactly one text key and 
> value. The text key MUST be SendTargets. The expected response 
> depends upon the value, as well as whether the session is a 
> discovery or operational session.

Wouldn't it be helpful to clarify this in the spec? Anyway, thanks a lot
for the clarification.

Thanks,


Pradeep Vincent
Storage Systems Group,
IBM Corporation, Tucson, AZ
vpradeep@us.ibm.com

To: Pradeep Vincent/Raleigh/IBM@IBMUS
cc: ips@ietf.org
Subject: Re: Can SendTarget command be part of a Text Request Sequence





ips-bounces@ietf.org wrote on 18/09/2004 00:43:40:

> Appendix D from iSCSI Spec: A SendTargets command consists of a
> single Text request PDU.This PDU contains exactly one text key and
> value. The text key MUST be SendTargets. The expected response
> depends upon the value, as well as whether the session is a
> discovery or operational session.
>
> This means that a Text Request PDU that contains a SendTargets key
> shouldn't have any other key. Can this PDU have C bit set to 1
> though.

Yes

> In other words can this Text Request PDU that has only the
> SendTargets key, be part of a Text Request Sequence which might have
> other Text Request PDUs that might have other keys such as
> MaxRecvDataSegmentLength.
>

NO


> A Text Request PDU has part of SendTargets and C bit = 1 :: can the
> following Text Request PDU (that might contain part of the
> SendTargets command) have other keys such as
> MaxRecvDataSegmentLength and InitiatorAlias
>
> If a Text Request PDU that has C bit =1, starts off with some key
> like MaxRecvDataSegmentLength and InitiatorAlias and has part of
> SendTargets command, what do we do when we receive the next Text
> Request PDU in the sequence that has the remaining part of the
> SendTargets command. Is that valid or do we reject it ?


Whatever the rule says is valid for both a single or a sequence using the C bit.
The C bit is only a syntactical convenience for long text requests/responses.


>
> Thanks,
>
>
> Pradeep Vincent
> Storage Systems Group,
> IBM Corporation, Tucson, AZ
> vpradeep@us.ibm.com
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