Hardware Congestion Management Configuration; Hardware Congestion Management Overview; Causes, Impacts, And Countermeasures - H3C SR6600 Configuration Manual

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Hardware Congestion Management Configuration

The features in this chapter are available only on routers that have a SAP interface card.
This chapter includes these sections:

Hardware Congestion Management Overview

Hardware Congestion Management Configuration Approach
Per-Queue Hardware Congestion Management
Hardware Congestion Management Overview

Causes, Impacts, and Countermeasures

Network congestion is a major factor contributed to service quality degrading on a traditional network.
Congestion is a situation where the forwarding rate decreases due to insufficient resources, resulting in
extra delay.
Congestion easily occurs in complex packet switching circumstances in the Internet. The following
figure shows two common cases:
Figure 7-1 Traffic congestion causes
100M
100M>10M
（1）
Congestion may bring these negative results:
Increased delay and jitter during packet transmission
Decreased network throughput and resource use efficiency
Network resource (memory in particular) exhaustion and even system breakdown
Congestion is unavoidable in switched networks and multi-user application environments. To improve
the service performance of your network, you must take some proper measures to address the
congestion issues.
100M
10M
10M
50M
（100M+10M+50M）>100M
（2）
100M
7-1