Re: Typical lab wording

From: Narbik Kocharians (narbikk@gmail.com)
Date: Sun Jan 18 2009 - 04:24:20 ARST

DSCP has 64 values, which means that 6 bits are used, but they ONLY came up
with 21 standards (8 CS and 12 AF). But when you look at Class and drop
probability, they only used 5 of them.

On Sat, Jan 17, 2009 at 9:56 PM, Daniel Kutchin <daniel@kutchin.com> wrote:

> Hmm...to be precise, current DSCP values populate just 5 bits.
>
> ---
> Daniel
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Marko Milivojevic
> Sent: Samstag, 17. Januar 2009 22:07
> To: Narbik Kocharians
> Cc: Anthony Sequeira; TCP IP4; <ccielab@groupstudy.com>
> Subject: Re: Typical lab wording
>
> Oh, but I was asking more than that... :-)
>
> In addition to IPP compatibility, there are 802.1p and MPLS EXP that
> are also 3 bits. In a complex network that CCIE needs to mess around
> with, these all come to play and need to interact. Having 6 bits in
> one place and 3 bits elsewhere is a challenge that needs creativity to
> overcome -- at least awareness :-). This is what I was aiming for with
> my question.
>
> I never said that there WAS an incompatibility, take a careful look at
> how I worded the question. Sometimes question can ask you about
> something that is wrong and expects you to recognize that... ;-)
>
> I would really like to be a proctor! :-)
>
> On Sat, Jan 17, 2009 at 20:08, Narbik Kocharians <narbikk@gmail.com>
> wrote:
> > Totally agree with Anthony.
> >
> > On Sat, Jan 17, 2009 at 10:36 AM, Anthony Sequeira
> > <asequeira@internetworkexpert.com> wrote:
> >>
> >> I think Marko was just trying to get you to talk more about IP
> Precedence
> >> and the DSCP compatibility with it.
> >>
> >> Simply saying one uses three bits and the other uses six is not really
> >> enough.
> >>
> >> Anthony J. Sequeira, CCIE #15626, CCSI #23251
> >> Senior CCIE Instructor
> >>
> >> asequeira@internetworkexpert.com
> >>
> >> Internetwork Expert, Inc.
> >> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> >> Toll Free: 877-224-8987
> >> Outside US: 775-826-4344
> >>
> >> On Jan 17, 2009, at 1:23 PM, TCP IP4 wrote:
> >>
> >>> I can understand DSCP is back compatible with IPP with the extension
> >>> of the 3 more bits. Where are the incompatibility of IPP with DSCP?
> >>> Can you please share any links? Thanks a lot!
> >>>
> >>> On Sat, Jan 17, 2009 at 1:40 AM, Marko Milivojevic <markom@markom.info
> >
> >>> wrote:
> >>>>
> >>>> On Sat, Jan 17, 2009 at 03:26, TCP IP4 <tcp.ip4@gmail.com> wrote:
> >>>>>
> >>>>> First come out is 3 bits vs 6 bits. Do I need to drill more?
> >>>>
> >>>> Let's continue on the same note :-)
> >>>>
> >>>> How does that help you, especially when combined with other
> >>>> technologies that still use only 3 bits? Can you name those
> >>>> technologies and explain their compatibility or incompatibility with
> >>>> DSCP?
> >>>>
> >>>> --
> >>>> Marko
> >>>> CCIE #18427 (SP)
> >>>> My network blog: http://cisco.markom.info/
> >>
> >>
> >> Blogs and organic groups at http://www.ccie.net
> >>
> >> _______________________________________________________________________
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> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
> > --
> > Narbik Kocharians
> > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > www.MicronicsTraining.com <http://www.micronicstraining.com/>
> > www.Net-Workbooks.com <http://www.net-workbooks.com/>
> > Sr. Technical Instructor
>
>
> Blogs and organic groups at http://www.ccie.net
>
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>
> Blogs and organic groups at http://www.ccie.net
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> _______________________________________________________________________
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> 

-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
www.Net-Workbooks.com
Sr. Technical Instructor

Blogs and organic groups at http://www.ccie.net

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