Re: bandwidth and shape/police in MQC

Correction please'

 I think, priority is maximum 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.

On Fri, Jul 3, 2009 at 1:01 PM, S Malik <ccie.09_at_gmail.com> wrote:

> 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 - 13:02:56 ART