Chapter 10 Quality of Service (QoS)

Traffic Policing

Traffic policing is the limiting of the input or output transmission rate of a class of traffic on the basis of user-defined criteria. Traffic policing methods measure traffic flows against user-defined criteria and identify it as either conforming, exceeding or violating the criteria.

Traffic Rate

Traffic Rate

Traffic

Time

Traffic

Time

(Before Traffic Policing)

(After Traffic Policing)

The ZyXEL Device supports three incoming traffic metering algorithms: Token Bucket Filter (TBF), Single Rate Two Color Maker (srTCM), and Two Rate Two Color Marker (trTCM). You can specify actions which are performed on the colored packets. See Section 10.8 on page 166 for more information on each metering algorithm.

10.3 The Quality of Service General Screen

Click Network Settings > QoS > General to open the screen as shown next.

Use this screen to enable or disable QoS and set the upstream bandwidth. See Section 10.1 on page 151 for more information.

Figure 52 Network Settings > QoS > General

 

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VSG1432-B101 Series User’s Guide