RE: ISCSI: Urgent Flag requirement violates TCP.

["Douglas Otis" <dotis@sanlight.net>]

Matt,

In the same manner an urgent pointer would be useful to an analyzer, it
would also be useful to a snooper in that this mechanism can be seen to
weaken security.  Yet another reason to make this an optional feature.  As
an analyzer would need to be fully in the path to see switched packets, an
analyzer should be able to remain synchronous with the stream.

Doug


> This has already been discussed at length on this reflector.  Please see
> Julian Satran's message on 11/7 "Re: iSCSI: new draft"
>
> -Matt
>
> Silvano Gai wrote:
>
>
> > I understand that "regaining iSCSI PDU framing" may be useful
> for iSCSI protocol analyzers (I assume protocol analyzers don't
> reconstruct the TCP stream across multiple packets), but I am not
> able to figure out how this can allow more efficient hardware
> implementation of iSCSI (you need anyhow to receive the bytes in
> order). Can you comment ?
> >
> > Thanks
> >
> > -- Silvano
> >
> > Silvano Gai
> > Cisco Systems                  Empowering the Internet Generation
> > 170 West Tasman Drive                         Tel. (408) 527 2690
> > San Jose, CA, 95134-1706                      Fax. (408) 527 2690
> >                                                    sgai@cisco.com
>
>