From: Peng Zheng (zpnist@yahoo.com)
Date: Tue Sep 17 2002 - 22:53:50 GMT-3
I received another solution:
1. enable random detect
random-detect
2. random-detect precedence p min-threshold
max-threshold
mark-prob-denominator
random-detect prededence X 40
100
40
Which one is correct?
--- Kris Keen <kkeen@bigpond.net.au> wrote:
> Peng,
>
> The comands you want are:
>
> random-detect dscp (if you are using dscp) <dscp
> value> <min thres> <max
> thres> <drop rate>
>
> I believe this can be done with precedeance, you'd
> need to match the source
> ranges with an access list and define a policy map
> tied to a class which
> will define your drop rates.
>
> drop rate will be the number it will drop once your
> thresholds are exceeded
> for instance, drop 20 is drop 1 out of 20 packets.
> The lower the value the
> more aggresive the drops are
> You can set also under the class a queue-limit, this
> will define your queue
> size.
>
> I do some work with DSCP but never Precedance, so I
> guess this email is at
> least pointing you in the right direction.
>
> here is a sample of a class we have defined for data
>
>
> class DSCP-OUT-Data2
> bandwidth percent 33
> random-detect dscp-based
> random-detect exponential-weighting-constant 6
> random-detect dscp 18 15 28 15
> random-detect dscp 20 1 13 3
> queue-limit 200
> fair-queue
>
>
> As you can see, DSCP 20 which was set and matched
> with an access list has a
> more aggressive drop rate with smaller queue sizes
> (0 to 1 packet, 1 to 13
> packets and then when exceeded drop 1 in 3 packets.
> DSCP 18 is less
> aggresive.
>
> Hope that helps
> Kris
> ----- Original Message -----
> From: "Peng Zheng" <zpnist@yahoo.com>
> To: <ccielab@groupstudy.com>
> Sent: Wednesday, September 18, 2002 8:36 AM
> Subject: Random Detect
>
>
> > Hi,
> >
> > Asked to configure:
> >
> > Wred under some interface.
> >
> > requirement:
> >
> > 1) for specific precedence, for example, critical,
> > specify drop 1 out of 40
> >
> > 2) minimum queue 40, maximum queue 100
> >
> >
> > Thanks for help.
> >
> >
> > Best Wishes,
> > Peng Zheng
> >
> > __________________________________________________
> > Do you Yahoo!?
> > Yahoo! News - Today's headlines
> > http://news.yahoo.com
>
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:43:55 GMT-3