Configuring A Sub-Interface; Configuring An Ethernet Sub-Interface; Establishing The Configuration Task - Huawei AR1200 series Configuration Manual

Huawei AR1200 Series Enterprise Routers
Configuration Guide - Interface Management
l For the configurations of Eth-Trunk interfaces and VLANIF interfaces, see the Huawei AR1200 Series
l For the configurations of MP group interfaces, MFR interfaces, and dialer interfaces, see the Huawei AR1200
l For the configuration of the tunnel interface, see the Huawei AR1200 Series Enterprise Routers
l For the configurations of WLAN-BSS interfaces and WLAN-Radio interfaces, see the Huawei AR1200

16.3 Configuring a Sub-interface

By configuring sub-interfaces, you can enable the AR1200 to communicate with multiple peer
devices.

16.3.1 Configuring an Ethernet Sub-interface

If a Layer 3 Ethernet interface needs to identify VLAN packets, configure sub-interfaces on the
Layer 3 Ethernet interface. Then different VLAN packets can be forwarded from different sub-
interfaces, providing great flexibility.

16.3.1.1 Establishing the Configuration Task

Before configuring an Ethernet sub-interface, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the required data. This will help
you complete the configuration task quickly and accurately.
Applicable Environment
On the AR1200, sub-interfaces can be configured on Layer 3 Ethernet interfaces.
Pre-configuration Tasks
Before configuring an Ethernet sub-interface, complete the following tasks:
l
l
Data Preparation
To configure an Ethernet sub-interface, you need the following data.
No.
1
2
Issue 01 (2012-04-20)
NOTE
Enterprise Routers Configuration Guide - LAN.
Series Enterprise Routers Configuration Guide - WAN.
Configuration Guide - VPN.
Series Enterprise Routers Configuration Guide - WLAN.
NOTE
l For the application of Ethernet sub-interfaces in VLANs, refer to VLAN Configuration.
Correctly connecting the physical interface of the sub-interface
Configuring a Layer 3 main interface
Data
Numbers of the main interface and sub-interfaces
IP Address of an Ethernet sub-interface
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