Re: OT: Catalys 6500 qos policing doubts

From: karthik thatikonda <get2explore_at_gmail.com>
Date: Thu, 24 May 2012 17:23:29 -0700

Hi,

It affects marking too. All the features policing and marking gets
inherited from svi.

Thanks,

Karthik.

On Tue, May 22, 2012 at 11:11 PM, Juan <fferrer10_at_gmail.com> wrote:

> Many thanks Karthik
>
> ... i have SVIs, but the case you are speaking about affects only to
> policing, or maybe it can also affect to mark ingress traffic?
>
> Best Regards
>
> 2012/5/22 karthik thatikonda <get2explore_at_gmail.com>
>
>> Hi Juan,
>>
>> Do you have SVI's configured?. In that case, use no platform qos
>> vlan-based for policy to hit on each L2 port.
>>
>> Thanks,
>>
>> Karthik.
>>
>> On Mon, May 21, 2012 at 11:30 PM, Juan <fferrer10_at_gmail.com> wrote:
>>
>>> Hi Marc,
>>>
>>> I am using something like this (at each input L2 interface i have only a
>>> different type of traffic i need to mark, the config i sent you is a
>>> simplified version ):
>>>
>>> ...
>>> access-list 10 permit any
>>>
>>> class-map class_in
>>> match access-group 10
>>>
>>> policy-map pol_in1
>>> class class_in
>>> set dscp dscp1
>>>
>>> policy-map pol_in2
>>> class class_in
>>> set dscp dscp2
>>> policy-map pol_in3
>>> class class_in
>>> set dscp dscp3
>>>
>>> interface TenGigabitEthernet2/3/14
>>> switchport
>>> switchport access vlan 200
>>> switchport mode access
>>> platform qos queue-mode mode-dscp
>>> service-policy input pol_in1
>>>
>>> interface TenGigabitEthernet2/3/15
>>> switchport
>>> switchport access vlan 20
>>> switchport mode access
>>> platform qos queue-mode mode-dscp
>>> service-policy input pol_in2
>>>
>>> interface TenGigabitEthernet2/3/16
>>> switchport
>>> switchport access vlan 2
>>> switchport mode access
>>> platform qos queue-mode mode-dscp
>>> service-policy input pol_in3
>>> ....
>>>
>>> This is, i am using a different policy-map at each input interface to
>>> mark
>>> with a different dscp value
>>>
>>>
>>> Regards.
>>>
>>>
>>>
>>> 2012/5/22 marc edwards <renorider_at_gmail.com>
>>>
>>> > This sounds accurate. You are attempting to use mutations in ingress
>>> then
>>> > police the new markings outgoing. It is a very thoughtful question. It
>>> > sounds like mutations are off missing or QoS isn't enabled. How are you
>>> > remarking on ingress?
>>> >
>>> >
>>> > On Mon, May 21, 2012 at 3:00 PM, marc edwards <renorider_at_gmail.com>
>>> wrote:
>>> > > Is mls qos enabled.
>>> > >
>>> > > can you do a show mls qos?
>>> > >
>>> > > On Mon, May 21, 2012 at 2:37 PM, Juan <fferrer10_at_gmail.com> wrote:
>>> > >> Carlos, maybe i am misunderstanding the 15.0.1 IOS for 6500 config
>>> > notes ,
>>> > >> but at:
>>> > >>
>>> > >>
>>> >
>>> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/15.0SY/configuration/guide/qos_class_mark_police.html
>>> > >>
>>> > >> you can see this note at "Overview of Policing":
>>> > >>
>>> > >> "For all policers, PFC QoS uses a configurable global table that
>>> maps
>>> > the
>>> > >> internal DSCP value to a marked-down DSCP value. When markdown
>>> occurs,
>>> > >> PFC QoS gets the marked-down DSCP value from the table. You cannot
>>> > specify
>>> > >> marked-down DSCP values in individual policers."
>>> > >> I am trying to do this:
>>> > >>
>>> > >> -mark some types of traffic entering Cat6500 layer 2 interfaces
>>> using
>>> > >> different DSCP values
>>> > >> -policing these same flows previously marked at a different output
>>> > >> interface (layer 3 interface of the same 6500) , by matching them
>>> > >> using dscp values "assigned" on the input. Then, i do not see
>>> clearly if
>>> > >> the comment "You cannot specify marked-down DSCP values in
>>> individual
>>> > >> policers." is a restriction for this type of config (i have done a
>>> SPAN
>>> > of
>>> > >> the output traffic, and i can not see the new dscp values... maybe
>>> this
>>> > is
>>> > >> normal because the dscp assigned at the input is only an "internal
>>> > dscp" ??)
>>> > >>
>>> > >> Many thanks newly & Best Regards
>>> > >>
>>> > >>
>>> > >>
>>> > >>
>>> > >> 2012/5/21 Carlos G Mendioroz <tron_at_huapi.ba.ar>
>>> > >>
>>> > >>> Where did you read that ?
>>> > >>> AFAIK, you can mark on input and do congestion management on output
>>> > even
>>> > >>> on a 6k.
>>> > >>> -Carlos
>>> > >>>
>>> > >>> JuanF @ 21/05/2012 15:40 -0300 dixit:
>>> > >>>
>>> > >>> Hi all,
>>> > >>>>
>>> > >>>> I have a 6509 Catalyst with:
>>> > >>>> -Supervisor card 2T
>>> > >>>> -Ios 15.0.SY1
>>> > >>>>
>>> > >>>> I need to do a QoS policing configuration on this hardware, with
>>> these
>>> > >>>> conditions:
>>> > >>>>
>>> > >>>> -Mark Dscp value from some types of IP traffic on several layer2
>>> INPUT
>>> > >>>> Interfaces of the 6509
>>> > >>>> -Use these DSCPs marks to aply different QoS policings to these
>>> flows
>>> > >>>>
>>> > >>>> Is it possible to do all this by configuring only the 6500 switch?
>>> > (this
>>> > >>>> is,
>>> > >>>> without depending of matching the dscp value marked by a diferent
>>> > >>>> device). I
>>> > >>>> read you can not mark the Dscp on the 65000 and also manipulate
>>> the
>>> > same
>>> > >>>> traffic using these Dscps values locally asigned on the 65000.
>>> > >>>>
>>> > >>>> TIA and Best Regards
>>> > >>>>
>>> > >>>>
>>> > >>>> Blogs and organic groups at http://www.ccie.net
>>> > >>>>
>>> > >>>> ______________________________**______________________________**
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>>> > >>>>
>>> > >>>>
>>> > >>>>
>>> > >>>>
>>> > >>>>
>>> > >>>>
>>> > >>>>
>>> > >>> --
>>> > >>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>> > >>>
>>> > >>
>>> > >>
>>> > >>
>>> > >> --
>>> > >> Juan Faure
>>> > >>
>>> > >>
>>> > >> Blogs and organic groups at http://www.ccie.net
>>> > >>
>>> > >>
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>>> > >>
>>> > >>
>>> > >>
>>> > >>
>>> >
>>> >
>>>
>>>
>>> --
>>> Juan Faure
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
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>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>
>
> --
> Juan Faure

Blogs and organic groups at http://www.ccie.net
Received on Thu May 24 2012 - 17:23:29 ART

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