Re: bandwidth and shape/police in MQC

Bandwidth/priority statement only matters during congestion,
shaping/policing happens all the time.,,,,

I think, priority is minimum guaranteed bandwidth and any class assigned to
it is always given priority to the configured # regardless of congestion.
During congestion, extra traffic in the class will be dropped else extra
traffic will be dealt as default class.

bandwidth is the minimum guarnateed BW all the times.

Most welcome to correct if wrong.

On Fri, Jul 3, 2009 at 10:51 AM, andrew <andrew.coates_at_internode.on.net>wrote:

> While its for a cisco 10000 router here is a good example of how
> parent/child policy maps work compared to the policy map below:
>
>
> http://www.cisco.com/en/US/docs/ios/12_2sb/feature/guide/3levelsch.html#wp10
> 77234
>
> look at the buckets picture. From my perspective the implemenation of the
> child/parent policies is the opposite to the way its configured, ie from
> configuration it looks like the traffic should be tested against the parent
> then flow to the child, but it isn't its the opposite way around.
>
> cheers
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> andrew
> Sent: Saturday, July 04, 2009 12:37 AM
> To: 'S Malik'; 'Tortle Tang'
> Cc: ccielab_at_groupstudy.com
> Subject: RE: bandwidth and shape/police in MQC
>
>
> http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6558/white_pape
> r_c11-481499.html
>
> Priority with Explicit Policing Rate
> When a priority class is configured with an explicit policer, traffic is
> limited to the policer rate regardless of congestion conditions. In other
> words, even if bandwidth is available the priority traffic will not be able
> to exceed the rate specified with the explicit policer.
> policy-map p1
> class c1
> priority
> police cir 1000000 conform-action transmit exceed-action drop
>
>
> im making the assumption that it is the same with shape/bandwidth ( I see
> no
> reason why not)
>
> cheers
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of S
> Malik
> Sent: Saturday, July 04, 2009 12:20 AM
> To: Tortle Tang
> Cc: andrew.coates_at_internode.on.net; ccielab_at_groupstudy.com
> Subject: Re: bandwidth and shape/police in MQC
>
> I think BW is the minimum BW guaranteed for the class of traffic in this
> case and shaping would be based on interface BW not BW# defined under
> policy-map. Please correct if wrong.
>
>
>
> On Fri, Jul 3, 2009 at 8:48 AM, Tortle Tang <tortletang_at_hotmail.com>
> wrote:
>
> > Good explaination.
> >
> > Thanks your help. Now I am clear.
> >
> >
> >
> > Tortle
> >
> >
> >
> >
> >
> > > Wrom:
> >
> >
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Received on Fri Jul 03 2009 - 13:01:46 ART