Method used to configure congestion avoidance and congestion management on S series switches

For S series switches (except the S1700), congestion avoidance prevents a network from being overloaded using a packet discarding policy. Congestion management ensures that high-priority services are preferentially processed based on the specified packet scheduling sequence.
On a traditional network, quality of services (QoS) is affected by network congestion. Congestion means the low data forwarding rate and delay resulting from insufficient network resources. Congestion results in delay of packet transmission, low throughput rate, and high resource consumption. Congestion often occurs in a complex networking environment where packet transmission and provision of various services are both required.
Congestion avoidance and congestion management are two flow control mechanisms for resolving congestion on a network.
For the configuration of congestion management on S series fixed switches, see "Example for Configuring Congestion Management (Schedule Template Mode)" in the Typical QoS Configuration.
For the comprehensive configuration example of S series fixed and modular switches, see "Example for Configuring Congestion Avoidance and Congestion Management (Using WRR Scheduling and an SRED Policy)" or "Example for Configuring Congestion Avoidance and Congestion Management (Using PQ+DRR Scheduling and a WERD Profile)" in the Typical QoS Configuration.

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