If i have a 50 Meg pipe for my wan and I have X amount of data that is tranmitted over the circuit a week, how do I calculate the amount of data that should be reserved for that traffic. The traffic include voice. I know we can use a LLQ. I am currently sending 9.1 Gigabytes. Is there a typical formula that can be used so that I can figure out how much bandwidth the allocate out of my 50 Meg circuit.
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Cisco's recommendation is to allocate about 1/3 your bandwidth for LLQ. If your actual LLQ traffic uses less, the excess is available to other traffic. If the LLQ traffic actually uses more, you'll need a bigger pipe. (NB: In my experience, LLQ traffic can usually allocate up to 40% without issues.)