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Chapter 10 Quality of Service (QoS)
VMG8825-B Series User’s Guide
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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.
The VMG 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 162 for more information on each
metering algorithm.
10.3 The Quality of Service General Screen
Click Network Setting > 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 149
for more information.
Figure 74 Network Settings > QoS > General
Traffi
c
Time
Traffic Rate
Traffic
Time
Traffic Rate
(Before Traffic Policing) (After Traffic Policing)