Re: iSCSI: TotalAHSlength in response pdus

[Bill Studenmund <wrstuden@wasabisystems.com>]

On Fri, 24 May 2002, Julian Satran wrote:

> AHS could be used for more than encapsulating an extended CDB - Julo

While the above is quite true, doesn't that go against the statement
quoted below that responses don't have AH segments?

I think the question is more doesn't the spec contradict itself rather
than should we or shouldn't we have AH segments in a response; right now
we seem to be saying both yes AND no. :-)

Take care,

Bill

> Parthi <pamanick@npd.hcltech.com>
> Sent by: owner-ips@ece.cmu.edu
> 05/24/2002 06:01 AM
> Please respond to Parthi
>
>
>         To:     Ashok Rajagopalan <ashokr@hpindda.cup.hp.com>
>         cc:     ips@ece.cmu.edu
>         Subject:        Re: iSCSI: TotalAHSlength in response pdus
>
>
>
> Ashok Rajagopalan wrote:
> Hello,
> Since section 9.2 states "iSCSI response PDUs do not have AH segments"
> why do SCSI response PDU, Task Management Resp PDU etc.. have
> TotalAHSLength?
> Shouldn't it be reserved. In addition DataSegmentLength to be made
> reserved
> in most of the response pdus e.g. Task Mgt resp etc..
> Thanks,
> Ashok
> Ashok,
>     TotalAHSLength must be 0 "reserved" for PDUs that don't have AHS.
> AHS is only used to encapsulate an extended CDB. This scenario
> TotalAHSLength would be 0.
> --
> Parthiban M,
> iSCSI Driver Team,
> HCL Technologies Ltd.,          Tel : (+91)-44-3741939 to 42, Extn. 2332
> http://san.hcltech.com
>
>
>