Re: QoS eating up mind ..

Show interface shows # of packets in queue. This is the software queue.
Any non zero number indicates "congestion". There is not really a need
of ever dropping a packet...

-Carlos

ron.wilkerson_at_gmail.com @ 17/12/2010 13:40 -0300 dixit:
> Is there a show command to see if an int is congested at the time of the sh command? Besides looking at the qos related sh commands, wondering if there is an int related command that shows that an int is congested. Or is the output drops the only one?
>
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: Carlos G Mendioroz <tron_at_huapi.ba.ar>
> Sender: nobody_at_groupstudy.com
> Date: Fri, 17 Dec 2010 13:25:27
> To: GAURAV MADAN<gauravmadan1177_at_gmail.com>
> Reply-To: Carlos G Mendioroz <tron_at_huapi.ba.ar>
> Cc: Cisco certification<ccielab_at_groupstudy.com>
> Subject: Re: QoS eating up mind ..
>
> Only when the link is not congested. If the interface is congested, then
> the implicit policer will top this class to 2M.
>
> -Carlos
>
> GAURAV MADAN @ 17/12/2010 12:56 -0300 dixit:
>> Ok .. still not clear 100 % ..
>> Let me take one more example :
>>
>> !
>> class C1
>> priority 2000
>> police 3000000 conform-action transmit exceed-action drop violate-action drop
>> !
>> Now ; I think I should be able to send 3 M ( 2M in priority ) .. Over
>> 3M data rate ; I should see drops
>>
>> Am I clear now ?
>>
>> Thanks
>> Gaurav Madan
>>
>>
>> On Fri, Dec 17, 2010 at 8:40 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
>>> Priority is a schedulling config, plus an implicit policer.
>>> There you have at most 2M for C1 and 5M for C2 when congested.
>>> (And try to provide 2M service to these classes using LLQ)
>>>
>>> Then you have explicit policers, 1M for C1 and 1M for C2.
>>>
>>> They are not added, they are applied simultaneously.
>>>
>>> So you should see drops even with 1.5M in class C1...
>>>
>>> -Carlos
>>>
>>> GAURAV MADAN @ 17/12/2010 11:43 -0300 dixit:
>>>> I am sure my understanding is Wrong as I see the drops when I send 3
>>>> Mbps traffic in C1 .
>>>> Can someone please please clarify in this ?
>>>>
>>>> Thanks
>>>> Gaurav Madan
>>>>
>>>> On Fri, Dec 17, 2010 at 7:50 PM, GAURAV MADAN <gauravmadan1177_at_gmail.com>
>>>> wrote:
>>>>> Can someone please confirm me what does following do :
>>>>>
>>>>> !
>>>>> class C1
>>>>> priority 2000
>>>>> police 1000000 conform-action transmit exceed-action drop violate-action
>>>>> drop
>>>>> !
>>>>> class C2
>>>>> priority 5000
>>>>> police 1000000 conform-action transmit exceed-action drop violate-action
>>>>> drop
>>>>> !
>>>>>
>>>>>
>>>>> 1) In C1 .. I am pumping 3 Mbps traffic
>>>>> 2) In C2 .. I am pumping 6 Mbps traffic
>>>>>
>>>>> I feel that there should not be any drop .
>>>>>
>>>>> The reason why i feel so is that in C1 ; 3 Mbps should be allowed ( 2
>>>>> Mbps priority + 1 Mbps ) .
>>>>>
>>>>> Please correct me if I am wrong in this ..
>>>>>
>>>>> Thanks in advance
>>>>> Gaurav Madan
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>> --
>>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>>
>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net