I have been studying QoS for some time now and am familiar with the tools and commands that Cisco provides for configuring QoS.
Recently, my company has given me the task of creating a QoS policy. We will be deploying VoIP and video very soon and my task is to prepare the network for this endeavor.
While there are lots of documents describing how to configure QoS, I only find a few documents on how to design a policy. In particular, let's say that I have a packeteer or other similar device that can classify traffic and tell me what the average / peak traffic rates are. What is the proper way of setting up queuing if you have this information?
I know that for voice, I need to look at the codecs that will be used (G729 in my case) and the Call Admission Controls to determine what my voice BW requirements are (as well as the other basics such as future traffic growth, etc).
What I don't know is how to size my other traffic queues? Should I classify the traffic and just add up the average BW usage for the class? Or should I provide a BW to provide for the peak rates (I doubt I have that much BW to divide up).
I guess - what are your recommendations? Currently I am looking at LLQ to provide for my voice / video traffic (perhaps 2 priority queues, 1 for each type of traffic). Any and all help is appreciated!