RE: iSCSI Boot: Technical Issues

[Black_David@emc.com]

Except that I think Luben got his left and right
reversed ... how about:

      Within a group of 4 hexadecimal digits, leading
	zeros MAY be omitted, but at least one digit MUST
	be present if the group is not otherwise omitted.
	A trailing zero-valued group or groups MAY be omitted;
	the recipient MUST assume that omitted groups are zero
	and MUST suffix the zeroes to the right of the supplied
	groups.  A zero group that is to the left of any non-zero
	group MUST NOT be omitted.

       Examples:
        4A = 004A-0000-0000-0000
        12C-4-32 = 012C-0004-0032-0000
	  0-5F-C = 0000-005F-000C-0000

Thanks,
--David

> -----Original Message-----
> From: Mark Bakke [mailto:mbakke@cisco.com]
> Sent: Monday, September 23, 2002 1:11 PM
> To: Luben Tuikov
> Cc: Prasenjit Sarkar; ips@ece.cmu.edu
> Subject: Re: iSCSI Boot: Technical Issues
> 
> 
> Luben-
> 
> I like it.
> 
> --
> Mark
> 
> Luben Tuikov wrote:
> > 
> > --- Mark Bakke <mbakke@cisco.com> wrote:
> > > I see your point.  In fact, we would take "4" as
> > > 0004-0000-0000-0000.  How about saying:
> > >
> > > Within dashes, zeroes to the left; e.g. 4A == 004A.
> > > Missing dashed fields become zeroes to the right.
> > >
> > > 4A = 004A-0000-0000-0000
> > > 12C-4-32 = 012C-0004-0032-0000
> > 
> > The examples are great, though the stipulation is not
> > formal as there are _only_ two groups ``within dashes''.
> > 
> > A clear an unambiguous stipulation would include
> > this definition plus your examples:
> > 
> >       Within each group of 4 hexacedimal digits zeros are
> >       filled to the right, and groups of zeros are filled
> >       to the left.
> > 
> >       Example:
> >         4A = 004A-0000-0000-0000
> >         12C-4-32 = 012C-0004-0032-0000
> > 
> > The advantage is that is is formal, and unambiguous
> > without a doubt. It implicitly defines what a group
> > is (four hexadecimal digits), if not defined anywhere
> > in the embedding document.
> > 
> > --
> > Luben
> > 
> > =====
> > --
> > 
> > __________________________________________________
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> 
> -- 
> Mark A. Bakke
> Cisco Systems
> mbakke@cisco.com
> 763.398.1054
>