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Re: QOS for real scenerio posted 03/09/2004
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I agree. I was thinking MQC.

  access-list 100 permit ip host 172.16.10.1 any

 Class-map
 match access-group 100

 policy-map shape-cbwfq
 class Server1
 shape average 256
 bandwidth 256

 interface s0/0
 service-pol out QOS

Alsontra


----- Original Message ----- 
From: "Edwards, Andrew M" <andrew.m.edwards@xxxxxxxxxx>
To: <alsontra@xxxxxxxxxxx>; "Marvin Greenlee" <marvingreenlee@xxxxxxxxx>;
"Ahmed Mustafa" <ahmed.mustafa@xxxxxxxxxxxxx>
Cc: <ccielab@xxxxxxxxxxxxxx>
Sent: Tuesday, March 09, 2004 6:54 AM
Subject: RE: QOS for real scenerio


> Shaping, in my mind, would be the  better choice.  Of course, if you have
a specific bandwidth requirement that MUST be ensured, I would go with RSVP.
>
> That way you know the bandwidth is there...
>
> Another option would be custom que lists where you can use bandwidth as a
consideration for the link.  But if its end to end I would use RSVP.
>
> andy
>
> -----Original Message-----
> From: alsontra@xxxxxxxxxxx [mailto:alsontra@xxxxxxxxxxx]
> Sent: Tuesday, March 09, 2004 2:10 AM
> To: Marvin Greenlee; Ahmed Mustafa
> Cc: ccielab@xxxxxxxxxxxxxx
> Subject: Re: QOS for real scenerio
>
>
> Would you want police or shape?  Although policing would keep your servers
utilization 256k, wouldn't shaping provide you with smoother traffic
patterns, in addition to less packet loss??? Rookie question, I know.  :-)
>
> Alsontra
>
>
>
> ----- Original Message ----- 
> From: "Marvin Greenlee" <marvingreenlee@xxxxxxxxx>
> To: "Ahmed Mustafa" <ahmed.mustafa@xxxxxxxxxxxxx>
> Cc: <ccielab@xxxxxxxxxxxxxx>
> Sent: Monday, March 08, 2004 11:56 PM
> Subject: Re: QOS for real scenerio
>
>
> > For assigned maximum bandwidth, you can use the police command.
> >
> > Policy-map GURANTEED
> >  class QOS
> >  police 256000 8000 exceed-action drop
> >
> > Port numbers will give you more granularity for the
> > traffic you are limiting.
> >
> > Assuming that you want the QoS for the link between
> > the server and the clients, you will need to configure
> > it on both sides.
> >
> > Sincerely,
> > Marvin Greenlee
> > Network Learning, Inc
> > Senior Technical Advisor
> >
> > --- Ahmed Mustafa <ahmed.mustafa@xxxxxxxxxxxxx> wrote:
> > > I am working on a real scenerio where specfically
> > > asked for assigned bandwidth
> > > 256K for ip address 172.16.10.1 (Running as an
> > > application server) regardless
> > > of congestion.
> > >
> > > If I configure CBWFQ where I can assign bandwidth:
> > >
> > > Router (Where Application Server)
> > > ---------------------------------------------------
> > >
> > >
> > >
> > >
> > >
> > > Remote Router (Where hosts are)
> > > ---------------------------------------------------
> > >
> > > access-list 100 permit ip any host 172.16.10.1
> > >
> > > class-map QOS
> > > match access-group 100
> > >
> > > Policy-map GURANTEED
> > > class QOS
> > > bandwidth 256
> > >
> > > int s0/0:0
> > > service-policy output GURANTEED.
> > >
> > >
> > ----------------------------------------------------------------------
> > --
> > >
> > >
> > > The above QOS only occurs incase of congestion.
> > >
> > > What QOS can be configured  regardless of
> > > congestion, and always gurantee
> > > bandwidth 256KB only.  When I Say 256KB only I mean
> > > it shouldn't exceed 256KB
> > > regardless of bandwidth availble or not.
> > >
> > >
> > > In access-list, will port numbers make any huge
> > > difference.  It's an old
> > > application and port# is not known unless we through sniffer.
> > >
> > >
> > > Should QOS configurations apply both ways as I am
> > > mentioning above, or on a
> > > router only where the application server is.
> > >
> > > Thanks
> > >
> > >
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