Re: mls Qos

Hello Singh,
                   Check this example, the Ether-channel is up , and will be
up unless you apply the cmd *mls qos*.
.
Which will break the ether-channel immediately, as both links got different
QOS HW capabilities in the tx queues

these 2 devices have an ether-channel up, the ether-channel is connected on
2 different line cards for redundancy.
one line card having a CFC module * [type = 2q8t]* and another having a
DFC module. * [type = 1q8t]:*

*6509-MLS1#sh etherchannel port-channel | b Index*

*Index Load Port EC state No of bits*

*------+------+------+------------------+-----------*

* 0 55 Gi7/11 On 4*

* 1 AA Gi8/11 On 4*

* *

*OBR-6509-MLS1#sh mod | i Dist*

* 7 Distributed Forwarding Card WS-F6700-DFC3C SAL1202CB3F 1.0 Ok*

* 8 Distributed Forwarding Card WS-F6700-DFC3C SAL1201BQSQ 1.0 Ok*

*6509-MLS1#*

*6509-MLS1# *

*6509-MLS2#**sh etherchannel port-channel | b Index*

*Index Load Port EC state No of bits*

*------+------+------+------------------+-----------*

* 0 55 Gi8/11 On 4*

* 1 AA Gi9/11 On 4*

* *

*6509-MLS2#****sh mod | i Dist*

* 7 Distributed Forwarding Card WS-F6700-DFC3C SAL1202CB31 1.0 Ok
( NO DFC cards , just CFC )*

*6509-MLS2#***

**

*6509-MLS2#****#*sh queueing int Gi7/47 | i type

* Transmit queues [type = 1p3q8t]:*

* Receive queues [type = 2q8t]:*

Hope this might help :)

------------------------------
>
> -----
> Thanks & B.regards
> Ahmed Elhoussiny,CCIE# 21988 (R&S)
> Network Consultant & Cisco Academy Instructor

On Sun, Jul 26, 2009 at 9:14 PM, Ramanpreet Singh
<sikandar.raman_at_gmail.com>wrote:

> Ahmed,
>
> Can you explain in more detail what you are talking about mls qos.
>
> I'll appreciate if you can also provide a example .
>
> Thanks!
>
> On Sun, Jul 26, 2009 at 12:58 PM, Ahmed Elhoussiny <aelhoussiny_at_gmail.com>wrote:
>
>> Hello guys,
>> Also remember before using this command *(mls qos)* to
>> check if there is any *ether-channel *configured between switches.
>> if yes, check the platform & line card HW capabilities in QOS ( queuing
>> 2q8t
>> or 1q4t...ect)
>> cause if they doesn't match , the ether-channel will be broken, even if u
>> didn't configure any QOS parameters on it.
>>
>> -----------------------------------
>> Thanks & B.regards
>> Ahmed Elhoussiny,CCIE# 21988 (R&S)
>> Network Consultant & Cisco Academy Instructor
>>
>>
>> On Sun, Jul 26, 2009 at 8:33 PM, S Malik <ccie.09_at_gmail.com> wrote:
>>
>> > I think, I would look into the source and destination of traffic and the
>> > possible paths taken. Any device invloved in the path involved should
>> have
>> > it and for CAT switches modify maps accordingly.
>> >
>> > Police or shaping depends on the requirement. Police will provide
>> maximum
>> > guaranteed BW configured and drop extra traffic during congestion and
>> > shapping will buffer it .Usually ISP implement Policing and Customer
>> > shapping. Shapping is outbound and policing can be configured both ways
>> > (double check) mostly for in coming traffic.
>> >
>> > I think, for policing,, extra traffic is treated as default (normal)
>> > traffic
>> > if there is no congestion.
>> >
>> >
>> > On Sun, Jul 26, 2009 at 1:16 PM, Narbik Kocharians <narbikk_at_gmail.com
>> > >wrote:
>> >
>> > > hahahahaha
>> > >
>> > > I am with you on that.
>> > >
>> > > On Sun, Jul 26, 2009 at 10:12 AM, Anthony Sequeira <asequeira_at_ine.com
>> > > >wrote:
>> > >
>> > > > Yes - and let me clarify - I never have my students insert commands
>> > > "brute
>> > > > force".
>> > > >
>> > > > For example, entering MLS QOS on all switches at the beginning of
>> the
>> > > lab.
>> > > > :-)
>> > > >
>> > > > Another one that turns my stomach is adding next-hop-self to every
>> > > peering
>> > > > in BGP.
>> > > >
>> > > > Warmest Regards,
>> > > >
>> > > > Anthony J. Sequeira, CCIE #15626
>> > > > http://www.INE.com <http://www.ine.com/> <http://www.ine.com/> <
>> http://www.ine.com/>
>> > > >
>> > > > On Jul 26, 2009, at 1:00 PM, Narbik Kocharians wrote:
>> > > >
>> > > > Remember,
>> > > >>
>> > > >> If hosts should retain their marking, and you enable "MLS QOS" you
>> > will
>> > > >> effect their traffic, so i would recommend enabling it ONLY when
>> you
>> > > need
>> > > >> to
>> > > >> apply QOS of any kind.
>> > > >> Always remember, whenever you configure a router or a switch you
>> > should
>> > > >> ask
>> > > >> yourself why am i using this command or this keyword, Do i need it?
>> if
>> > > the
>> > > >> command that you are configuring is required, go for it, if NOT,
>> you
>> > > >> should
>> > > >> NOT. You should make that a habit.
>> > > >> BTW, i am NOT picking on Anthony, he is an excellent instructor, i
>> am
>> > > ONLY
>> > > >> stating my opinion.
>> > > >>
>> > > >> On Sun, Jul 26, 2009 at 9:43 AM, Anthony Sequeira <
>> asequeira_at_ine.com>
>> > > >> wrote:
>> > > >>
>> > > >> Yeah, this is definitely one of those commands that you should
>> insert
>> > > in
>> > > >>> the configuration whenever you are in doubt. It should not
>> penalize
>> > you
>> > > >>> if
>> > > >>> in fact it was not required.
>> > > >>>
>> > > >>> Also, thinking ahead to troubleshooting Cisco gear, you can
>> > definitely
>> > > >>> envision this as one that would be missing from a pre-configured
>> > > switch.
>> > > >>> :-)
>> > > >>>
>> > > >>> Warmest Regards,
>> > > >>>
>> > > >>> Anthony J. Sequeira, CCIE #15626
>> > > >>> http://www.INE.com <http://www.ine.com/> <http://www.ine.com/> <
>> http://www.ine.com/> <
>> > > http://www.ine.com/>
>> > > >>>
>> > > >>>
>> > > >>> Test your Core Knowledge today!
>> > > >>> Q: Four NAT terms are used to describe IP addresses in a NAT
>> > scenario.
>> > > >>> The
>> > > >>> address of HostB (an outside host) as it is seen on the outside
>> > network
>> > > >>> is
>> > > >>> typically referred to as which term?
>> > > >>> A: The Outside Global Address
>> > > >>> More Info:
>> > > >>>
>> > > >>>
>> > >
>> >
>> http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094831.shtml
>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>> On Jul 26, 2009, at 1:07 AM, kaniyath minha wrote:
>> > > >>>
>> > > >>> Dear
>> > > >>>
>> > > >>>>
>> > > >>>> where mls qos should enable and where it is not required..its
>> > > confusing
>> > > >>>> me.
>> > > >>>>
>> > > >>>> Is Police require it or not?
>> > > >>>>
>> > > >>>> please give in detail.
>> > > >>>>
>> > > >>>> thanks and regards
>> > > >>>>
>> > > >>>>
>> > > >>>> Blogs and organic groups at http://www.ccie.net
>> > > >>>>
>> > > >>>>
>> > >
>> _______________________________________________________________________
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>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>>
>> > > >>
>> > > >> --
>> > > >> Narbik Kocharians
>> > > >> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>> > > >> www.MicronicsTraining.com <http://www.micronicstraining.com/> <
>> http://www.micronicstraining.com/> <
>> > > http://www.micronicstraining.com/>
>> > > >> Sr. Technical Instructor
>> > > >>
>> > > >>
>> > > >> Blogs and organic groups at http://www.ccie.net
>> > > >>
>> > > >>
>> > _______________________________________________________________________
>> > > >> Subscription information may be found at:
>> > > >> http://www.groupstudy.com/list/CCIELab.html
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >>
>> > > >
>> > >
>> > >
>> > > --
>> > > Narbik Kocharians
>> > > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>> > > www.MicronicsTraining.com <http://www.micronicstraining.com/> <
>> http://www.micronicstraining.com/>
>> > > Sr. Technical Instructor
>> > >
>> > >
>> > > Blogs and organic groups at http://www.ccie.net
>> > >
>> > >
>> _______________________________________________________________________
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>> >
>> >
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>> >
>> >
>> >
>> >
>> >
>> >
>>
>>
>> --
>>
>>
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>>
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Received on Sun Jul 26 2009 - 21:59:25 ART