From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Jun 11 2004 - 17:44:31 GMT-3
Dmitry,
It will be subject to shaping, but will be first to move from
the shaping queue to the transmit ring. Since it is guaranteed a
maximum of 500Kbps though, it will not be dropped from the shaping queue
(or even delayed) unless it exceeds that rate.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Dmitry Volkov
> Sent: Friday, June 11, 2004 8:53 AM
> To: Brian McGahan
> Cc: ccielab@groupstudy.com
> Subject: RE: CBWFQ in the real life
>
> Won't be in this case voice traffic subject of shaping during
congestion
> and
> perhaps delayed ?
>
> Thanks,
> Dmitry
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On
> > Behalf Of Brian McGahan
> > Sent: Thursday, June 10, 2004 10:46 AM
> > To: Patrick Torney; ccielab@groupstudy.com
> > Subject: RE: CBWFQ in the real life
> >
> >
> > I meant bandwidth. The class should read:
> >
> > policy-map RESERVE
> > class A
> > priority 500
> > class B
> > bandwidth 500
> > class C
> > bandwidth 1000
> >
> > Still early ;)
> >
> > Brian McGahan, CCIE #8593
> > bmcgahan@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987 x 705
> > Outside US: 775-826-4344 x 705
> >
> >
> > > -----Original Message-----
> > > From: Patrick Torney [mailto:ptorney@satx.rr.com]
> > > Sent: Thursday, June 10, 2004 9:41 AM
> > > To: Brian McGahan
> > > Subject: Re: CBWFQ in the real life
> > >
> > > Hi Brian:
> > >
> > > Why did you use 'priority xxx' under class B and C and not
> > 'bandwidth
> > > xxx'?
> > > Doesn't the way you did this result in all classes sharing the
LLQ?
> > >
> > > Thanks.
> > > Pat Torney
> > > ----- Original Message -----
> > > From: "Brian McGahan" <bmcgahan@internetworkexpert.com>
> > > To: <roih@012.net.il>; <ccielab@groupstudy.com>
> > > Sent: Thursday, June 10, 2004 9:17 AM
> > > Subject: RE: CBWFQ in the real life
> > >
> > >
> > > > Roi,
> > > >
> > > > Configure the voice traffic in the low latency queue (priority
> > > > statement under the class), and do a bandwidth reservation for
> > classes B
> > > > and C. Put this class inside another nested policy that
> > shapes out
> > to
> > > > 2Mbps.
> > > >
> > > > Example:
> > > >
> > > > policy-map RESERVE
> > > > class A
> > > > priority 500
> > > > class B
> > > > priority 500
> > > > class C
> > > > priority 1000
> > > >
> > > > policy-map SHAPE
> > > > class class-default
> > > > shape average 2000000
> > > > service-policy RESERVE
> > > >
> > > >
> > > > The above configuration gives 500Kbps of low latency to class A,
> > > > and guarantees at least 500Kbps and 1000Kbps for class B
> > and class C
> > > > respectively in the case of congestion. The congestion
> > condition is
> > > > bound by the outer service policy, which is shaping the
> > aggregate of
> > all
> > > > classes in RESERVE to 2Mbps. In the case of the absence
> > of traffic
> > for
> > > > a particular class, one or more of the other classes may use the
> > > > bandwidth allocated to the missing class.
> > > >
> > > > HTH,
> > > >
> > > > Brian McGahan, CCIE #8593
> > > > bmcgahan@internetworkexpert.com
> > > >
> > > > Internetwork Expert, Inc.
> > > > http://www.InternetworkExpert.com
> > > > Toll Free: 877-224-8987 x 705
> > > > Outside US: 775-826-4344 x 705
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > Behalf
> > > > Of
> > > > > roih@012.net.il
> > > > > Sent: Thursday, June 10, 2004 5:28 AM
> > > > > To: ccielab@groupstudy.com
> > > > > Subject: CBWFQ in the real life
> > > > >
> > > > > hi group.
> > > > >
> > > > > I need help in CBWFQ case in the real world.
> > > > > here it goes:
> > > > >
> > > > >
> > > > > 3 classes A,B,C the first is voice.
> > > > >
> > > > > I have fast Ethernet interface and I need the limit it to 2M
> > > > (that's
> > > > > what
> > > > > the
> > > > > customer wants to pay).
> > > > > in 2M I have the police the traffic the A and B will get
> > > > > 0.5M each and C the other 1M.
> > > > > Now for the problem: I want to be able the allocate the BW of
> > class A
> > > > if
> > > > > no
> > > > > packets of voice are arriving and use it
> > > > > in class B, the same case from B to C.
> > > > > So, my config file have to give me the option to use
> > the entire BW
> > > > even if
> > > > > A
> > > > > and B are empty. I've tried it in few ways (also
> > with the new
> > > > feature
> > > > > "two-
> > > > > rate
> > > > > policer" but no success.
> > > > > The BW remaining commands cant help here because it
> > define the way
> > the
> > > > > Allocate the left BW after the classes used the BW. My
challenge
> > is to
> > > > > "leak"
> > > > > BW from class to class and not from the remaining "bank" to
the
> > > > classes
> > > > >
> > > > >
> > > > > Experts, Any idea??
> > > > >
> > > > > p.s the version can be 12.3...
> > > > >
> > > > > Roi
> > > > >
> > > > >
> > > >
> > ______________________________________________________________
> > _________
> > > > > Please help support GroupStudy by purchasing your study
> > materials
> > > > from:
> > > > > http://shop.groupstudy.com
> > > > >
> > > > > Subscription information may be found at:
> > > > > http://www.groupstudy.com/list/CCIELab.html
> > > >
> > > >
> > ______________________________________________________________
> > _________
> > > > Please help support GroupStudy by purchasing your study
materials
> > from:
> > > > http://shop.groupstudy.com
> > > >
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
> >
> > ______________________________________________________________
> > _________
> > Please help support GroupStudy by purchasing your study
> > materials from:
> > http://shop.groupstudy.com
> >
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
This archive was generated by hypermail 2.1.4 : Sat Jul 03 2004 - 19:40:38 GMT-3