System Manual 3. System Architecture
76.7300FP11/2, Rev A 8/09 Page 2-15
3.10 These services can be used to create differential services on your network.
Some of these services include the following items:
• Give preferential treatment to different classes of network traffic.
• Ensure sufficient bandwidth to supply average network loads.
• Determine the network response during times of congestion.
• Classify traffic so that different applications or traffic classes receive
treatment in accordance with defined requirements.
Overview of QoS Operations 3.11 The following flowchart gives the overall view of packet flow and the
various QoS parameters that are applied to it. Refer to Figure 3.1, page 2-15.
Figure 3.1 QoS Operations
ingress port classification
policing
(metering)
congestion
management
(optional)
queuing and
shaping
scheduling
egress port
incoming
packet
outgoing
packet