Figure 1-6 Network diagram of Layer 3 link aggregation
RouterA RouterB
GE1/0/0
GE2/0/0
GE1/0/0
GE2/0/0
Eth-Trunk1
Eth-Trunk1
100.1.1.1/24
100.1.1.2/24
Configuration Roadmap
The configuration roadmap is as follows:
1. Create a Layer 3 Eth-Trunk interface on each device and configure an IP addresses for each
Eth-Trunk interface.
2. Add GE interfaces to the Eth-Trunk.
Data Preparation
To complete the configuration, you need the following data:
l Numbers of Layer 3 GE interfaces between RouterA and RouterB
l IP address of the Eth-Trunk interface on RouterA
l IP address of the Eth-Trunk interface on RouterB
Procedure
Step 1 Configure RouterA.
<Huawei> system-view
[Huawei] sysname RouterA
# Create a Layer 3 Eth-Trunk interface (Eth-Trunk 1) and configure an IP addresses for the Eth-
Trunk interface.
[RouterA] interface eth-trunk 1
[RouterA-Eth-Trunk1] undo portswitch
[RouterA-Eth-Trunk1] ip address 100.1.1.1 24
[RouterA-Eth-Trunk1] quit
# Add GE1/0/0 and GE2/0/0 to Eth-Trunk 1.
[RouterA] interface gigabitethernet 1/0/0
[RouterA-GigabitEthernet1/0/0] eth-trunk 1
[RouterA-GigabitEthernet1/0/0] quit
[RouterA] interface gigabitethernet 2/0/0
[RouterA-GigabitEthernet2/0/0] eth-trunk 1
[RouterA-GigabitEthernet2/0/0] quit
Step 2 Configure RouterB.
<Huawei> system-view
[Huawei] sysname RouterB
# Create a Layer 3 Eth-Trunk interface Eth-Trunk 1 and configure an IP addresses for the Eth-
Trunk interface.
[RouterB] interface eth-trunk 1
[RouterB-Eth-Trunk1] undo portswitch
[RouterB-Eth-Trunk1] ip address 100.1.1.2 24
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 1 Link Aggregation Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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