Digging deep into Unified Communications from Spain.
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I didn’t know how to approach this post because of its depth; therefore, I thought that giving an example would be a good idea keeping the post short and just as a brief reference on how to configure QoS. So, here I go.

Before you continue reading, you should have a good understanding of the QoS stages and the different mechanisms, because I am not going to explain the theory which can be found on my previous post.

The whole configuration posted here is based on the Cisco Catalyst 3750 which is on the lab exam.

I always keep in mind the stages to follow the same steps while I am configuring.

Classification > Policing/Marking > InputQ Mapping/Input queuing > Ingress scheduling > Stack Ring > OutputQ mapping/Output queuing > Egress Scheduling

Bellow a little diagram that it is always easier to remember and understand.

QoS Catalyst 3750 Continue reading…