RE: iSCSI: NOP-In

["John Hufferd" <hufferd@us.ibm.com>]

Yes, target.

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John L. Hufferd
Senior Technical Staff Member (STSM)
IBM/SSG San Jose Ca
Main Office (408) 256-0403, Tie: 276-0403,  eFax: (408) 904-4688
Home Office (408) 997-6136, Cell: (408) 499-9702
Internet address: hufferd@us.ibm.com


"THALER,PAT (A-Roseville,ex1)" <pat_thaler@agilent.com> on 05/13/2002
10:43:05 AM

To:    John Hufferd/San Jose/IBM@IBMUS, Eddy Quicksall <eddyq@ivivity.com>
cc:    ips <ips@ece.cmu.edu>
Subject:    RE: iSCSI: NOP-In



See inline below. Pat

-----Original Message-----
From: John Hufferd [mailto:hufferd@us.ibm.com]
Sent: Monday, May 13, 2002 9:15 AM
To: Eddy Quicksall
Cc: ips
Subject: RE: iSCSI: NOP-In



Eddy, et.al.
Initiators can not originate a ping with data.  But it can echo a ping with
^^^^^^^^^^
Targets ??
data.  That is, it can reflect back to the initiator, via a NOP-In, the
data that was sent to it within a NOP-Out from the initiator.  However, the
target may not originate a ping via a NOP-In and include Data.

This was done, if I remember the history correctly, because initiators are
never prepared to accept unsolicited data of any kind.  They always solicit
data if they are to receive it.  Hence, an unsolicited NOP-In with data,
seemed to some to be problematical, and that capability was removed.

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.
.
John L. Hufferd
Senior Technical Staff Member (STSM)
IBM/SSG San Jose Ca
Main Office (408) 256-0403, Tie: 276-0403,  eFax: (408) 904-4688
Home Office (408) 997-6136, Cell: (408) 499-9702
Internet address: hufferd@us.ibm.com