Configuring Congestion Avoidance; Configuration Prerequisites; Configuration Procedure - H3C S7500 Series Operation Manual

Operation Manual – QoS
H3C S7500 Series Ethernet Switches
weight of queue 8: 10
COS configuration:
Config (max queues): 8
Schedule mode: weighted round-robin
Weighting (in packets):
COSQ 0 = 10 packets
COSQ 1 = 5 packets
COSQ 2 = 10 packets
COSQ 3 = 10 packets
COSQ 4 = 5 packets
COSQ 5 = 10 packets
COSQ 6 = 5 packets
COSQ 7 = 10 packets
Egress port queue statistics(in bytes):
Priority
0
1
2
3
4
5
6
7
common queue statistics(in bytes):

1.10 Configuring Congestion Avoidance

When congestion occurs, the switch will drop packets as soon as possible to release
queue resources and try not to put packets into high-delay queues in order to eliminate
congestion. The switch adopts the RED algorithm for congestion avoidance.

1.10.1 Configuration Prerequisites

The indexes of queues to be dropped at random, the queue length that starts the
drop action, the queue length that causes all the packets to be dropped and the
drop probability are specified.
The ports that need this configuration are specified.

1.10.2 Configuration Procedure

Follow these steps to configure RED parameters:
CosQ Threshold
2 18432
0 2560
1 2560
3 2560
4 2560
5 2560
6 2560
7 2560
49152
1-25
Chapter 1 QoS Configuration
Count Used(%):
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0