From: Kleberg, Jason (JKleberg@glhec.org)
Date: Mon Oct 20 2003 - 10:30:47 GMT-3
Here are the examples. in the rate-limit command the ios is looking for the
difference between the two configured Bc and Be, it is not looking for an
absolute value in the command.
Here is an excerpt from dqos p438:
"
The configuration requires a single rate-limit command under serial 1/0.1 on
router ISP-edge.
All the parameters are typed in the single command line: rate-limit input
96000 12000 18000
conform-action set-prec-transmit 0 exceed-action drop. The rate of 96 kbps
is listed with a
Bc of 12,000 bytes, and a Be of 6000 bytes. (Remember, the burst-excess
parameter of 18,000
is actually Bc + Be.)"
and here is a quote from here:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos
_c/fqcprt4/qcfpolsh.htm#39988
<http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqo
s_c/fqcprt4/qcfpolsh.htm#39988>
"Extended Burst Value
wp1000990Extended burst is BM_1011532configured by setting the extended
burst value greater than the normal burst value. Setting the extended burst
value equal to the normal burst value excludes the extended burst
capability."
-----Original Message-----
From: kasturi cisco [mailto:kasturi_cisco@hotmail.com]
Sent: Saturday, October 18, 2003 8:23 AM
To: kwchen@netvigator.com; JKleberg@glhec.org; ccielab@groupstudy.com
Subject: Re: Traffic Policing Setting
Jason,
I am little confused now ? I thought the Burst Max is Bc+Be. How come Be
itself is Bc+Be.Am i not understanding this right or is the book wrong ?
The way i understand it is Bc is the max burst we can have while Be is the
excess over Bc. But total is Bc+Be. why is Be itself Bc+ Be ?? ? Have not
seen this anywhere else in the Cisco documentation.
Anyone else ..Qos Gurus ? can u please clear this confusion. The
Brian's,Scott et al ??.
Good Luck,
Kasturi.
>
>
> > p391 of the ciscopress dqos book states that the Be setting in CB
policing
> > statement is actually comprised of Bc+Be,
> > p399 says the same for CAR. So I would set the Be on both of these to
>3000,
> > not 1000.
> >
> > If i am wrong , please let me know
> > jason
> >
> > -----Original Message-----
> > From: kasturi cisco [mailto:kasturi_cisco@hotmail.com]
> > Sent: Friday, October 17, 2003 9:30 AM
> > To: kwchen@netvigator.com; ccielab@groupstudy.com
> > Subject: Re: Traffic Policing Setting
> >
> >
> > I think the config should be
> >
> > Using CB Policing: I should set: "police 160000 2000 1000 conform-action
> >
> > Usng CAR, I should set "rate-limit 16000 2000 1000 conform-action ...."
> >
> > The reason i set Be to 1000 bytes is as its given. Also Max burst is
> > 1000+2000 when it happens.If u set the Be to 3000 then it will become
> > 2000+3000 when traffic passes.
> >
> > HTH.
> >
> > Good Luck,
> > Kasturi.
> >
> > >From: "Chen Kwong Wai William" >Reply-To: "Chen Kwong Wai William" >To:
> > >Subject: Traffic Policing Setting >Date: Fri, 17 Oct 2003 07:56:38
+0800
> > > >Dear group, > > If the question asked to police the traffice at
> > 16000bps, 2000Byte Bc, >1000Byte Be. > > Are the settings correct? It is
> > because the burst-max is actually Bc+Be. > >Best Regards, >William Chen
>
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