[c-nsp] QoS for videoconferencing

[Peter Salanki]

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I would let all traffic except VC traffic be handled by class- 
default. Your first config should be rejected, as you assign 100% of  
the interface bandwidth to classes which exceeds the default maximum  
reservable bandwidth (which is 75% of link capacity). This can be  
changed with the max-reserved-bandwidth interface command.

8 feb 2007 kl. 18.04 skrev Vincent De Keyzer:

> Oliver,
>
>> you can simplify this by
>>
>> policy-map AAUR02i
>>  class AAUR02i-VideoConferencing
>>    bandwidth 512
>>  class class-default
>>   ...
>>
>> you can apply RED or something else to class-default, no need to  
>> reserve
>> the remaining bandwidth there..
>> you can also evaluate to use LLQ ("priority"), but regular CBWFQ  
>> should
>> also work..
>
> You mean "class class-default" followed by "random-detect", that's  
> all?
>
> Does it mean I can drop 'class-map AAUR02i-Other', and ACL 199 ? I  
> would
> like this (simple is beautiful).
>
>>> int ATM 2/0.159
>>>  service-policy output AAUR02i
>>
>> did you configure any vbr/abr on this PVC? I think we need this to
>> properly create backpressure..
>>
>> See http://www.cisco.com/warp/public/121/where_policy.html and  
>> related
>> links.
>
> Thanks for the hint, will look at that!
>
> Vincent
>
>
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Sincerely

Peter Salanki
Chief Network Engineer
Bahnhof AB (AS8473)
www.bahnhof.se
Office: +46855577132
Cell: +46709174932


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