One of the most common questions that CCIE candidates face when studying QOS MQC for the lab is “What is the difference between bandwidth percent and bandwidth remaining percent?”. Both are used in CBWFQ when implementing congestion management but what is the difference? The answer to this questions are the focus of this tutorial.
Well I’ve done lab 6 twice now and both times I learnt something new. First time through i finished the lab in just over 10 hours. Second time i did it 6 hours. The QoS and Security sections slowed me down the most first time through. I couldn’t figure out how to turn on WRED Congestion avoidance for HTTP traffic without using a bandwidth statement…
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Fairness for the Little Guy.
Weighted Fair Queue (WFQ) is another congestion management strategy. It is very different from the other two congestion management strategies we have looked at (PQ and CQ), in that it does not need classification options configured. Traffic is automatically sorted and put into different queues without any kind of access-list [...]