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S3700HI Ethernet Switches
Configuration Guide - QoS
Networking Requirements
The Switch is connected to the router through GE 0/0/3; the 802.1p priorities of voice, video,
and data services on the Internet are 6, 5, and 2 respectively, and these services can reach users
through the router and Switch, as shown in
0/0/3 on the Switch is greater than the rates of outgoing interfaces GE 0/0/1 and GE 0/0/2;
therefore, congestion may occur on these two outgoing interfaces. To reduce the effect caused
by congestion and ensure that high-priority and short-delay services are processed first, the
requirements are as follows.
Table 3-1 Congestion avoidance parameters
Types of
Services
Voice
Video
Data
Table 3-2 Congestion management parameters
Type of Services
Voice
Video
Data
Issue 01 (2012-03-15)
Color
Green
Yellow
Red
CoS
EF
AF3
AF1
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Copyright © Huawei Technologies Co., Ltd.
3 Congestion Avoidance and Congestion Management
Figure
3-1. The rate of incoming interface GE
Lower
Upper
Threshold (%)
Threshold (%)
80
100
60
80
40
60
Configuration
Drop Percent
10
20
40
WRR
0
100
50
97
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