RE: Coverage of Data Digest when using Header Digests

[julian_satran@il.ibm.com]

Sukha,

The length includes the ADCB and whatever fields are there after the 48
bytes.
It is not "clean" ... nor final :)-

Julo



"Sukha Ghosh" <sukha_ghosh@ivivity.com> on 22/01/2001 21:05:25

Please respond to sukha_ghosh@ivivity.com

To:   Julian Satran/Haifa/IBM@IBMIL, ips@ece.cmu.edu
cc:   "Barry Reinhold" <bbrtrebia@mediaone.net>
Subject:  RE: Coverage of Data Digest when using Header Digests




Julian,

     In this case of optional extended header (Header length > 48 bytes,
AddCDB
having non-zero value), since the digest coverage is through the Header
digest, does it also mean that the Length field will cover the length after
the header extension or the length is all the bytes except the 48 byte
header and the padding bytes?

Thanks

Sukha

-----Original Message-----
From: owner-ips@ece.cmu.edu [mailto:owner-ips@ece.cmu.edu]On Behalf Of
julian_satran@il.ibm.com
Sent: Monday, January 22, 2001 1:25 AM
To: ips@ece.cmu.edu
Cc: Barry Reinhold
Subject: Re: Coverage of Data Digest when using Header Digests




Barry,

Considering that one of the reasons to have a separate header and data
digest was to enable data
to carried through proxies, virtualizers etc. the current thinking is that
the data digest will cover only the data and the header (including
extensions) will be covered by the header digest.

Julo

"Barry Reinhold" <bbrtrebia@mediaone.net> on 21/01/2001 21:50:04

Please respond to "Barry Reinhold" <bbrtrebia@mediaone.net>

To:   Julian Satran/Haifa/IBM@IBMIL
cc:
Subject:  Coverage of Data Digest when using Header Digests




Julian,
     Is the Data Digest intended to cover whatever follows the 48 byte
iSCSI
header? In particular in a command frame which has a CDB > 16 bytes, uses
bidi, has immediate data, and is using both header and data digests - what
would the data digest cover?
                                                             - barry
reinhold