From: ying c (bf5tgh1@yahoo.com)
Date: Fri Sep 20 2002 - 19:05:58 GMT-3
The confusion part is bc and be are not the same as bc
and be we deal in the Frame Relay. Here's the link
that explains them in great detail:
http://www.cisco.com/warp/public/cc/pd/iosw/tech/carat_wp.htm
--- Rick <ccie_2003@hotmail.com> wrote:
> This bottom part is great
> > with yours you are giving a little more bandwidth
> > when bc=be there is no bursting ...you are
> allowing to burst
> but, there is one thing I'm still missing. You are
> saying if they are equal
> bc=be there is no bursting. Then what is the purpose
> of normal burst? This
> subject is killing me!
>
> Thanks,
> Rick
> ----- Original Message -----
> From: "elping" <elpingu@acedsl.com>
> To: "Rick" <ccie_2003@hotmail.com>
> Cc: "Ccielab (E-mail)" <ccielab@groupstudy.com>
> Sent: Thursday, September 19, 2002 3:36 PM
> Subject: Re: CAR question for QOS expert
>
>
> > just remember the different calculation in
> > traffic shaping and policing
> >
> > all calculations stem from these two
> > in you example it really does not limit the speed
> to 15meg
> > the one below will allow only 15meg
> >
> > rate-limit output 15000000 2812500 2812500
> conform-action transmit
> > exceed-action drop
> >
> > with yours you are giving a little more bandwith
> > when bc=be there is no bursting ...you are
> allowing to burst
> >
> > Rick wrote:
> >
> > > Lets say I want to rate limit a connection to
> 15Mbs on a 45Mbs
> interface. I
> > > looking a Cisco example and it shows they have
> the burst normal and
> burst
> > > exceed allowing 2,812,500 bytes. Why must we
> have the burst statements.
> If you
> > > bought a tiered 15Meg connection from a ISP,
> aside from frame-relay you
> don't
> > > get any more BW than you pay for right? I'm just
> trying to relate this
> to
> > > something because I don't understand the burst
> statements. Can someone
> please
> > > explain. I have read about the token bucket and
> all, but I'm a litte
> confused.
> > > Here is the syntax of the example I was looking
> at.
> > > int HSSI 0/0/0
> > > rate-limit output 15000000 2812500 5625000
> conform-action transmit
> > > exceed-action drop
> > > ip add 10.1.0.9 255.255.255.0
> > >
> > > On a side note, How does one remember all this
> QOS stuff..??? I guess
> the
> > > trick is once you learn it you must know where
> to reference it on the
> DOC CD.
> > >
> > > Thanks and Good Luck to all!
> > > Rick
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