Calrec IP Primer Part 6: Quality of Service (QoS)
QoS is short for ‘Quality of Service’ and covers a lot of ground – it is a blanket term for a variety of tools, systems, technologies and protocols to provide greater control over network performance.
It gives network designers the ability to mitigate potential issues by assigning priorities to certain network traffic, and it can be applied in a number of ways. However, it is not a catch-all – it does not guarantee protection against all network conditions.
If a network undergoes unexpected demands, QoS cannot guarantee that all traffic will be passed; it can only prioritise higher priority traffic. It applies a logical hierarchy to guarantee priority traffic.
In this chapter of Calrec’s IP Primer we break down QoS into the component parts which make up the full QoS feature set, from Admission Control, Classification, Marking, Traffic Policing and Shaping and Egress Queuing.
We will explain how the Differentiated Services Code Point (DSCP) is fundamental to QoS policy decisions, and how to define what those DSCP values are, and we offer some advice on how to prioritise different kinds of traffic on the same network.
Keep an eye out for other parts of this Primer over the coming weeks, and for more like this sign up to our Soundwaves Newsletter below.
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