Re: OT: Catalys 6500 qos policing doubts

From: Juan <fferrer10_at_gmail.com>
Date: Wed, 23 May 2012 08:11:25 +0200

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
>>
>>
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>>
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-- 
Juan Faure
Blogs and organic groups at http://www.ccie.net
Received on Wed May 23 2012 - 08:11:25 ART

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