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
. The rate of incoming interface GE
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
Color
Lower
Threshold (%)
Upper
Threshold (%)
Drop Percent
Voice
Green
80
100
10
Video
Yellow
60
80
20
Data
Red
40
60
40
Table 3-2
Congestion management parameters
Type of Services
CoS
WRR
Voice
EF
0
Video
AF3
100
Data
AF1
50
S3700HI Ethernet Switches
Configuration Guide - QoS
3 Congestion Avoidance and Congestion Management
Configuration
Issue 01 (2012-03-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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