Avaya 580 - Manual (Page 680)

25-6 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 25
Diagram of QoS Process
Figure 25-1 illustrates the QoS process from when a frame enters the switch
to when the frame exits the switch.
Figure 25-1. QoS Process
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Frame is forwarded
from ingress priority
queue to egress port.
NOTE: If policing is
enabled, the switch
forwards traffic that
falls within the
maximum bit rate and
drops traffic that
exceeds the maximum
bit rate.
Frame is stored in 1
of 8 egress priority
queues on egress port. Frame is forwarded from
egress priority queue to
destination.
The switch uses queue-
servicing algorithms to
schedule transmission of
frames from the egress
queues.
Frame is stored in 1 of
8 ingress priority
queues
Priority of frame is
identified.
Frame received on
switch port.
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