Subject: Re: frame formats-header digest

From: [email-masked]
Date: Sat, 31 Mar 2001 07:49:46 +0200

As in the foils - 1. Julo

Mark Bakke <[email-masked]> on 30/03/2001 19:32:37

Please respond to Mark Bakke <[email-masked]>

To:   Julian Satran/Haifa/IBM@IBMIL
cc:   [email-masked]
Subject:  Re: frame formats

Excellent.  Which header digest positioning method will we choose?

1. Single header digest, after BHS and AHS

2. Two header digests, one for BHS, one for AHS

3. Single header digest for BHS; AHS is added to data digest

Option 3 will not work well with iSCSI proxies and gateways
that may change header information, but keep the data end-to-end.

To me, that leaves option 1 and 2.  So, which is easier, having
a single header digest in a variable location, or having the
potential for two header digests; one in a fixed location, and
an optional one in a variable location?

I don't believe that we will see AHS on most iSCSI PDUs, so is
it OK to have a "slow path" for these?

--
Mark

[email-masked] wrote:
>
> Dear colleagues,
>
> It look like Format-2 is selected by popular vote.
>
> Julo

--
Mark A. Bakke
Cisco Systems
[email-masked]
763.398.1054