Re: Ip Precedence or DSCP

From: Godswill Oletu (oletu@inbox.lv)
Date: Fri Jul 07 2006 - 12:20:14 ART


Aamir,

If you have the time, read RFC 791....

http://www3.ietf.org/proceedings/98aug/I-D/draft-ietf-diffserv-precedence-00.
txt

http://rfc.net/rfc791.html

RFC 791 reserve IP precedence values 6 & 7 for control traffics like routing
protocols, etc.

HTH

Godswill Oletu
CCIE #16464(R&S),CCNP,CCDP,CCSP,INFOSEC.

>>>
  ----- Original Message -----
  From: Aamir Aziz
  To: Godswill Oletu
  Cc: ccielab@groupstudy.com
  Sent: Friday, July 07, 2006 9:29 AM
  Subject: Re: Ip Precedence or DSCP

  Hi there Godswill

  I see what you mean but why set-prec-transmit 5? I mean max value of Ip
precedenc is 7 right? So why use 5 here?

  thanks
  Aamir

  On 7/7/06, Godswill Oletu <oletu@inbox.lv> wrote:
    Aamir,

    If there is no restriction or leading toward a particular solution, then
any
    of them should be fine. Rememeber that ip precedence over laps with the
    DSCP.

    So something like:

    ..... conform-action set-dscp-transmit 46 exceed-action set-dscp-transmit
46

    OR

    ..... conform-action set-prec-transmit 5 exceed-action set-prec-transmit
5

    Are good candidates, when in doubt do ask the proctor and do not forget to
    enable or confirm that 'ip cef' is enabled.

    HTH.

    Godswill Oletu
    CCIE #16464

    ----- Original Message -----
    From: "Aamir Aziz" <aamiraz77@gmail.com >
    To: <ccielab@groupstudy.com>
    Sent: Friday, July 07, 2006 5:41 AM
    Subject: Ip Precedence or DSCP

> Hello ppl,
>
> I have a small question. If there is a CAR question which says
Prioritize
> tcp traffic with MAX PRIORITY so are we going to use Ip Precedence or
    DSCP?
> and what values?
>
> Thanks
> Aamir
>
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