Wred Parameters Configuration Example - H3C S9500 Series Operation Manual

Operation Manual – QoS/ACL
H3C S9500 Series Routing Switches
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2.3.6 WRED Parameters Configuration Example

I. Network requirements
Set WRED parameters and drop algorithm for packets at the port GE7/1/1: Configure
parameters for WRED 0; outbound queue ID is 7; green-min-threshold is 150;
green-max-threshold is 500; green-max-prob is 5; yellow-min-threshold is 100;
yellow-max-threshold is 150; yellow-max-prob is 10; red-min-threshold is 50;
red-max-threshold is 100; red-max-prob is 15; exponent is 10; the port is in WRED drop
mode; import the parameters of WRED 0.
II. Network diagram
VLAN2, VLAN2,
1.0.0.1/8 1.0.0.1/8
PC1 PC1
Figure 2-10 Network diagram for WRED parameters configuration
III. Configuration procedure
1) Configure WRED parameters
# Configure parameters for WRED 0.
[H3C] wred 0
[H3C-wred-0] queue 7 150 500 5 100 150 10 50 100 15 10
2) Set drop algorithm and thresholds.
# Define the port GE7/1/1 in WRED drop mode, set the parameters of WRED 0.
[H3C-GigabitEthernet7/1/1] drop-mode wred 0
wrr , group1
wrr , group2
wrr , group2
wrr , group2
sp
sp
GE7/1/8 GE7/1/8
GE7/1/2 GE7/1/2
GE7/1/1 GE7/1/1
30
20
20
40
0
0
VLAN3, VLAN3,
2.0.0.1/8 2.0.0.1/8
PC2 PC2
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Chapter 2 QoS Configuration