Procedure
Step 1 Configure the VLAN for each interface so that the devices can communicate with each other.
<Quidway> system-view
[Quidway] sysname Switch
[Switch] vlan batch 2 5 6
[Switch] interface gigabitethernet1/0/1
[Switch-GigabitEthernet1/0/1] port link-type trunk
[Switch-GigabitEthernet1/0/1] port trunk allow-pass vlan 2 5 6
[Switch-GigabitEthernet1/0/1] quit
[Switch] interface gigabitethernet1/0/2
[Switch-GigabitEthernet1/0/2] port link-type trunk
[Switch-GigabitEthernet1/0/2] port trunk allow-pass vlan 2 5 6
[Switch-GigabitEthernet1/0/2] quit
[Switch] interface gigabitethernet2/0/1
[Switch-GigabitEthernet2/0/1] port link-type trunk
[Switch-GigabitEthernet2/0/1] port trunk allow-pass vlan 2 5 6
[Switch-GigabitEthernet2/0/1] quit
Step 2 Configure priority mapping based on simple traffic classification.
# Create DiffServ domain ds1, map packets of 802.1p priorities being 6, 5, and 2 to PHBs CS6,
EF, and AF2, and color packets as green, yellow, and red.
[Quidway] sysname Switch
[Switch] diffserv domain ds1
[Switch-dsdomain-ds1] 8021p-inbound 6 phb ef green
[Switch-dsdomain-ds1] 8021p-inbound 5 phb af3 yellow
[Switch-dsdomain-ds1] 8021p-inbound 2 phb af1 red
[Switch-dsdomain-ds1] quit
# Bind incoming interface GE 2/0/1 on the Switch to DiffServ domain ds1.
[Switch] interface gigabitethernet2/0/1
[Switch-GigabitEthernet2/0/1] trust upstream ds1
[Switch-GigabitEthernet2/0/1] trust 8021p inner
[Switch-GigabitEthernet2/0/1] quit
Step 3 Configure congestion avoidance.
# Create drop profile wred1 on the Switch and set parameters of packets of three colors.
[Switch] drop-profile wred1
[Switch-drop-wred1] color green low-limit 80 high-limit 100 discard-percentage 10
[Switch-drop-wred1] color yellow low-limit 60 high-limit 80 discard-percentage 20
[Switch-drop-wred1] color red low-limit 40 high-limit 60 discard-percentage 40
[Switch-drop-wred1] quit
# Apply drop profile wred1 on outgoing interfaces GE 1/0/1 and GE 1/0/2 of the Switch.
[Switch] interface gigabitethernet1/0/1
[Switch-GigabitEthernet1/0/1] qos wred wred1
[Switch-GigabitEthernet1/0/1] qos queue 5 wred wred1
[Switch-GigabitEthernet1/0/1] qos queue 3 wred wred1
[Switch-GigabitEthernet1/0/1] qos queue 1 wred wred1
[Switch-GigabitEthernet1/0/1] quit
[Switch] interface gigabitethernet1/0/2
[Switch-GigabitEthernet1/0/1] qos wred wred1
[Switch-GigabitEthernet1/0/1] qos queue 5 wred wred1
[Switch-GigabitEthernet1/0/1] qos queue 3 wred wred1
[Switch-GigabitEthernet1/0/1] qos queue 1 wred wred1
[Switch-GigabitEthernet1/0/1] quit
Step 4 Configure congestion management.
# Set scheduling parameters of queues of different CoS on outgoing interfaces GE 1/0/1 and
GE 1/0/2 of the Switch.
Quidway S7700 Smart Routing Switch
Configuration Guide - QoS
3 Congestion Avoidance and Congestion Management
Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
91
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