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[tecno13]

from where the priority shapes him on for instance determined packets: 
 
the packets voip have to have precedence on all the others

[danilovav]

By pipes your can limit other traffic or make guaranteed bandwidth for VoIP traffic
By pipe rules you can "move" traffic into pipes and also change precedence

[tecno13]

thanks

[chechito]

be sure of implement traffic shapping without leaving leaks of traffic without pipe, because you may have an unsuspected behavior of the connections.

[tecno13]

I had not thought there but it needs me for the VOIP that has to have precedence on everything

[chechito]

its because netdefend qos needs to be aware of all the traffic to make qos effective delaying other traffic to give free way to prioritized traffic, voip in your example.

another reason is that qos takes action to prioritize traffic only when pipe or pipes are full, because if not there is no need to action be taken, if all traffic is not pipes netdefend may see the pipes not filled when the reality is that bandwidth its really  exhausted an congestion its affecting critical traffic