OmniSwitch AOS Release 7 Network Configuration Guide March 2011 page 21-5
1 Classification—Packets are classified and marked according to policies and traffic behavior. This is
accomplished on the ingress using technologies, such as 802.1p, IP precedence and Diffserv Code Point
(DSCP). See “Classification” on page 21-6 for more information.
2 Congestion Management—Classified packets are prioritized and funneled from ingress to egress
using queuing technologies, such as Class of Service (CoS) VOQs, to ensure preferential treatment to high
priority traffic. See “Congestion Management” on page 21-10.
3 Congestion Avoidance—Weighted Random Early Detection (WRED) is used for admission control
and bandwidth management. Packets that are not high priority are randomly dropped to help avoid “tail
drop” on the queues. See “Congestion Avoidance” on page 21-18.
4 Traffic Policing and Shaping—Packet flows are policed or shaped to limit the rate of traffic received
or sent by the switch. See “Traffic Policing and Shaping” on page 21-20.
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