Re: iSCSI version info

[julian_satran@il.ibm.com]

Next draft will have version support in the login phase.

I though that there is a wide consensus on this but I did not manage to get
it in 01.

Regards,
Julo

Dave Thompson <dave.thompson@nuspeed.com> on 06/09/2000 20:51:45

Please respond to Dave Thompson <dave.thompson@nuspeed.com>

To:   Julian Satran/Haifa/IBM@IBMIL, ips@ece.cmu.edu
cc:
Subject:  iSCSI version info




Julian,

A version negotiation scheme was suggested by Mark Bakke's 29 Jun 2000
e-mail.

> Logins for iSCSI draft 03 might benefit from the following additions:
>
> 1. Version number text fields should be placed in both login requests
>    and responses.  the request could either specify the version of the
>    protocol the initiator wishes to run, or perhaps a list of versions
>    that the initiator is capable of running.
>
> Version: 1.0
>
> -OR-
>
> Version: 1.0 1.1 1.2
>
>   The target would then choose the highest version that it supported
>   in common with those requested, and return it in the response:
>
> Version: 1.1

Is there any plans to support a mechanism like this in the next iSCSI
draft?

In addition, perhaps a one byte field in the login command and response
headers
(byte 3?) could be added which would contain the major protocol version
number.
This could then be used to determine the proper format of the header in
cases
where major header layout changes occur (e.g. the last draft's size change
from
40 to 48 bytes).


--
Dave Thompson
NuSpeed, Inc.
dave.thompson@nuspeed.com