Re: QOS

From: Raj Arora (neenakamina@gmail.com)
Date: Fri Sep 19 2008 - 11:53:02 ART


It's funny I read this email string but I am taking Narbik's boot camp at
ASM in Maryland right now and we just went through this yesterday. Narbik's
explanation is AMAZING!!! He really gives you an awesome class and he goes
through all the options that they can throw at you. I highly recommend it.

On Fri, Sep 19, 2008 at 12:27 AM, John Wayne <john.wayne.ccie@gmail.com>wrote:

> Really nice explanation Narbik. Is your class this detailed and easy to
> follow?
>
> On Thu, Sep 18, 2008 at 11:19 PM, Narbik Kocharians <narbikk@gmail.com
> >wrote:
>
> > *Sorry for the long post and please understand that there are other ways
> to
> > do this, but here are some ways to configure FRTS:*
> >
> > * *
> >
> > *Example #1:*
> >
> > *In the first example ONLY the traffic shaping is enabled:*
> >
> >
> >
> > R1(config-map-class)#*int s0/0*
> >
> > R1(config-if)#*frame-relay traffic-shaping*
> >
> >
> >
> > *R1#Show traffic-shape*
> >
> >
> >
> > Interface Se0/0
> >
> > Access Target Byte Sustain Excess Interval Increment
> > Adapt
> >
> > VC List Rate Limit bits/int bits/int (ms) (bytes)
> > Active
> >
> > *103 56000 875 7000 0 125 875
> > - *
> >
> > *104 56000 875 7000 0 125 875
> > - *
> >
> > *105 56000 875 7000 0 125 875
> > - *
> >
> > *106 56000 875 7000 0 125 875
> > - *
> >
> > *112 56000 875 7000 0 125 875
> > - *
> >
> > *102 56000 875 7000 0 125 875
> > - *
> >
> >
> >
> > *Note once the traffic shaping is enabled, all the DLCIs are affected and
> > they are shaped to 56k.*
> >
> >
> >
> > *Example #2:*
> >
> > *In this example a map-class called "TST" is configured and it is applied
> > to
> > the main interface:*
> >
> >
> >
> > R1(config)#*map-class frame TST*
> >
> > R1(config-map-class)#*frame-relay cir 64000*
> >
> > R1(config-map-class)#*frame-relay bc 8000*
> >
> > R1(config-map-class)#*frame-relay adaptive-shaping becn*
> >
> >
> >
> > R1(config-map-class)#*int s0/0*
> >
> > R1(config-if)#*frame-relay traffic-shaping*
> >
> > R1(config-if)#*frame-relay class TST*
> >
> >
> >
> > *To verify:*
> >
> >
> >
> > *R1#Show traffic-shape *
> >
> >
> >
> > Interface Se0/0
> >
> > Access Target Byte Sustain Excess Interval Increment
> > Adapt
> >
> > VC List Rate Limit bits/int bits/int (ms)
> (bytes)
> > Active
> >
> > *103 64000 1000 8000 0 125
> 1000
> > BECN*
> >
> > *104 64000 1000 8000 0 125
> 1000
> > BECN*
> >
> > *105 64000 1000 8000 0 125
> 1000
> > BECN*
> >
> > *106 64000 1000 8000 0 125
> 1000
> > BECN*
> >
> > *112 64000 1000 8000 0 125
> 1000
> > BECN*
> >
> > *102 64000 1000 8000 0 125
> 1000
> > BECN*
> >
> >
> >
> > *Note because the frame-relay class was applied to the main interface,
> it's
> > policy is applied to all the DLCIs under that interface.*
> >
> >
> >
> > *Example #3*
> >
> > *In this example the frame-relay class was applied to one of the DLCIs
> > (102):*
> >
> >
> >
> > R1(config-if)#*frame-relay interface-dlci 102*
> >
> > R1(config-fr-dlci)#*class TST*
> >
> >
> >
> > *R1#Show traffic-shape*
> >
> >
> >
> > Interface Se0/0
> >
> > Access Target Byte Sustain Excess Interval Increment
> > Adapt
> >
> > VC List Rate Limit bits/int bits/int (ms)
> > (bytes) Active
> >
> > 103 56000 875 7000 0 125
> > 875 -
> >
> > 104 56000 875 7000 0 125
> > 875 -
> >
> > 105 56000 875 7000 0 125
> > 875 -
> >
> > 106 56000 875 7000 0 125
> > 875 -
> >
> > 112 56000 875 7000 0 125
> > 875 -
> >
> > *102 64000 1000 8000 0 125
> > 1000 BECN*
> >
> >
> >
> > *Note since the policy (map-class frame-relay TST) was applied to DLCI
> 102,
> > it effected DLCI 102 ONLY, but because the "Frame-relay traffic-shaping"
> > command is still configured under the physical interface, the other DLCIs
> > are shaped to 56000 just like the first example. *
> >
> > * *
> >
> > *Example #4*
> >
> > *Note the "Frame-relay traffic-shaping", the "class TST", and the
> > "map-class
> > frame-relay TST" are removed. *
> >
> > *A Policy-map called "TST" is configured and applied to a new map-class
> > called "QOS" using "service-policy out TST" command, and finally the
> > "Map-class frame-relay QOS" is applied to DLCI 102. *
> >
> > * *
> >
> > R1(config)#*int s0/0*
> >
> > R1(config-if)#*no frame-relay traffic-shaping*
> >
> >
> >
> > R1(config-if)#*frame-relay interface-dlci 102*
> >
> > R1(config-fr-dlci)#*no class TST*
> >
> >
> >
> > R1(config)#*no map-class frame TST*
> >
> >
> >
> > R1(config)#*policy-map TST*
> >
> > R1(config-pmap)#*class class-default*
> >
> > R1(config-pmap-c)#*shape average 64000 8000* *0*
> >
> > R1(config-pmap-c)#*Shape adaptive 32000*
> >
> >
> >
> > R1(config)#*map-class frame-relay QOS*
> >
> > R1(config-map-class)#*service-policy out TST*
> >
> >
> >
> > R1(config-map-class)#*int s0/0*
> >
> > R1(config-if)#*frame-relay interface 102*
> >
> > R1(config-fr-dlci)#*class QOS*
> >
> > * *
> >
> > *To verify:*
> >
> >
> >
> > *R1#Show policy-map interface S0/0 *
> >
> >
> >
> > Serial0/0: DLCI 102 -
> >
> > Service-policy output: TST
> >
> > Class-map: class-default (match-any)
> >
> > 0 packets, 0 bytes
> >
> > 5 minute offered rate 0 bps, drop rate 0 bps
> >
> > Match: any
> >
> > Traffic Shaping
> >
> > Target/Average Byte Sustain Excess Interval Increment
> >
> > Rate Limit bits/int bits/int (ms)
> > (bytes)
> >
> > *64000/64000 1000 8000 0 125
> > 1000
> > *
> >
> >
> >
> > Adapt Queue Packets Bytes Packets Bytes
> > Shaping
> >
> > Active Depth Delayed
> Delayed
> > Active
> >
> > *BECN* 0 0 0 0
> > 0 no* *
> >
> >
> > On Thu, Sep 18, 2008 at 12:39 PM, Scott Morris <
> > smorris@internetworkexpert.com> wrote:
> >
> > > Follow the flow of traffic. If you left everything alone, where does
> the
> > > IP
> > > packet go? Once you apply one mechanism (physical/subint/per-dlci),
> does
> > > anything change?
> > >
> > > Remember to look at "show frame pvc" and see exactly how many dlcis
> > report
> > > to that particular interface. Because applying a policy to an
> interface
> > > will equally affect all dlci's that are there...
> > >
> > > So it's picking and choosing exactly what you do, or do not, want
> > affected.
> > >
> > > HTH,
> > >
> > > Scott
> > >
> > > -----Original Message-----
> > > From: olumayokun fowowe [mailto:olumayokun@gmail.com]
> > > Sent: Thursday, September 18, 2008 2:40 PM
> > > To: smorris@internetworkexpert.com
> > > Cc: ccielab@groupstudy.com
> > > Subject: QOS
> > >
> > > Hello guys,
> > > I am a bit confused about QOS. Apart from when I am doing FRTS, if I do
> > > policing on a frame relay interface, how do I differentiate when to
> apply
> > > the service policy inside a map-class frame-relay from when to apply it
> > > directly to the interface.
> > >
> > > Any help will be greatly appreciated.
> > >
> > > Thanks,
> > >
> > > 'Mayokun
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
> > > _______________________________________________________________________
> > > Subscription information may be found at:
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> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> > --
> > Narbik Kocharians
> > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > www.MicronicsTraining
> > www.Net-Workbooks.com <http://www.net-workbooks.com/> <
> http://www.net-workbooks.com/>
> > Sr. Technical Instructor
> >
> >
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> >
> > _______________________________________________________________________
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>
>
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>
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