Unanswered Question
Jul 1st, 2007

Hi all, can anyone give me a good and simple explanation how to set up and apply qos, ie if the cisco phone gives its own cos value, how to do get the switch to prioritize and trust the traffic, and what you do if you dont have the device at the end providing the cos or qos, how do you make read the traffic and then apply the policy to it? also what is the difference between cos and qos, is cos layer 2 and qos layer 3? what exactly is the difference here ?

many thanks to everyone

I have this problem too.
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thomas.chen Fri, 07/06/2007 - 06:19

Class of Service (CoS) and Quality of Service (QoS).:

With QoS, you can give preferential treatment to certain types of traffic at the expense of others. QoS assigns the CoS value specified with the mls qos cos interface configuration command


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