From: Darby Weaver (ccie.weaver@gmail.com)
Date: Wed Nov 26 2008 - 14:17:36 ARST
Amen to this one.
Let me tell you it seems to be working wonders for Video Conferencing.
On 11/25/08, Pavel Bykov <slidersv@gmail.com> wrote:
>
> :) Only sometimes they don't. Beware of generalization.
>
> SHAPING is not possible in inbound direction.
> QUEUING is possible in inbound direction. "hold-queue in" command changes
> the parameters in routers on the most basic level. It is a queue where
> packets wait to be processed by CPU in case of congestion. In switches,
> there can be multiple input queues per port, where packets wait for
> arbitrer
> to grant them access to switch fabric. For example, you can place packets
> in
> different input queues based on their cos/dscp.
>
>
>
> On Wed, Nov 26, 2008 at 3:56 AM, Jason Madsen <madsen.jason@gmail.com
> >wrote:
>
> > eww yikes...I can't believe I wrote that. yes, queuing is OUTBOUND
> > only! sorry Mark.
> >
> > Jason
> >
> >
> > On Tue, Nov 25, 2008 at 7:53 PM, Pavel Bykov <slidersv@gmail.com> wrote:
> >
> >> correction: Shaping does queuing only OUTBOUND. It is not possible to
> >> shape on inbound.
> >> Also a note, policers do not work outbound everywhere - it is
> platform/ios
> >> dependent.
> >>
> >>
> >> On Wed, Nov 26, 2008 at 3:43 AM, Jason Madsen <madsen.jason@gmail.com
> >wrote:
> >>
> >>> hopefully others will add-to once they read your posting especially if
> I
> >>> missed anything.
> >>>
> >>> where will you be testing? I take mine at RTP this coming February. I
> >>> can
> >>> probably use the extra time, but I want to go test really badly. The
> >>> wait
> >>> is starting to get to me.
> >>>
> >>> Jason
> >>>
> >>> On Tue, Nov 25, 2008 at 7:31 PM, <mark.chandra@gmail.com> wrote:
> >>>
> >>> > Jason,
> >>> >
> >>> > Thank you very much, you have good explanation. Qos is my weak area
> >>> also,
> >>> > and multicast is the weakest :)
> >>> >
> >>> > Once again, thx a lot
> >>> > ------Original Message------
> >>> > From: Jason Madsen
> >>> > To: Mark Stephanus Chandra
> >>> > Cc: ccielab@groupstudy.com
> >>> > Sent: Nov 26, 2008 08:14
> >>> > Subject: Re: Different Between Rate-limit and traffic shape
> >>> >
> >>> > (again I'm no QoS expert (yet), but from what I believe to be true:)
> >>> >
> >>> > Yes, rate-limit is policing. It's the legacy way of doing it and It
> >>> does
> >>> > NOT queue / buffer...just limit the traffic rate. Unlike queuing,
> you
> >>> can
> >>> > do it inbound or outbound. Traffic Shaping, however, does queuing
> aka
> >>> only
> >>> > inbound.
> >>> >
> >>> > HTH a little
> >>> >
> >>> > Jason
> >>> >
> >>> >
> >>> >
> >>> >
> >>> >
> >>> > On Tue, Nov 25, 2008 at 6:05 PM, Mark Stephanus Chandra <
> >>> > mark.chandra@gmail.com <mailto:mark.chandra@gmail.com> > wrote:
> >>> > Guys.
> >>> >
> >>> >
> >>> >
> >>> > One more thing, what is the difference between rate-limit and
> >>> > traffic-shape
> >>> > on an interface ?
> >>> >
> >>> >
> >>> >
> >>> > Is rate-limit treat traffic like policing the traffic and
> >>> traffic-shape
> >>> > like
> >>> > shaping the traffic with buffer ?
> >>> >
> >>> >
> >>> >
> >>> > Thanks a lot guys, my lab date is on two weeks, very nervous about
> it.
> >>> >
> >>> >
> >>> >
> >>> > Regards
> >>> >
> >>> >
> >>> >
> >>> > Mark Stephanus Chandra
> >>> > IT Consultant
> >>> >
> >>> >
> >>> > Blogs and organic groups at http://www.ccie.net <
> http://www.ccie.net>
> >>> >
> >>> >
>
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> >>> >
> >>> >
> >>> >
> >>> >
> >>> >
> >>> >
> >>> >
> >>> >
> >>> >
> >>> > Sent from my BlackBerry(R) wireless device from XL GPRS/EDGE/3G
> network
> >>>
> >>>
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> >>>
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> >>>
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> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >> --
> >> Pavel Bykov
> >> ----------------
> >> Don't forget to help stopping the braindumps, use of which reduces value
> >> of your certifications. Sign the petition at
> >> http://www.stopbraindumps.com/
> >>
> >
> >
>
>
> --
> Pavel Bykov
> ----------------
> Don't forget to help stopping the braindumps, use of which reduces value of
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>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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