Ethernet Interface Features Supported By The Ar1200; Configuring General Attributes Of Ethernet Interfaces; Establishing The Configuration Task - Huawei AR1200 series Configuration Manual

Huawei AR1200 Series Enterprise Routers
Configuration Guide - Interface Management

3.2 Ethernet Interface Features Supported by the AR1200

This section describes the ethernet interface features supported by the AR1200.
Port Group
The port group function of the AR1200 allows you to configure multiple interfaces in a port
group at the same time. A command executed in the port group view applies to all the interfaces
in the port group.
Auto-Negotiation
The auto-negotiation function allows interfaces on both ends of a link to select the same operating
parameters by exchanging information. In auto-negotiation mode, interfaces negotiate their
operating parameters, including the duplex mode, rate, and flow control. If the negotiation
succeeds, the two interfaces use the same operating parameters.
Port Isolation
The simplest method of isolating interfaces on the AR1200 is to add different interfaces to
different VLANs, but this wastes VLAN resources. The port isolation function allows you to
add interfaces to a port isolation group so that these interfaces can be isolated from each other.
Therefore, this function helps implement secure and flexible networking schemes.
Layer 2 Ethernet interfaces support port isolation.

3.3 Configuring General Attributes of Ethernet Interfaces

This section describes how to configure general attributes of Layer 2 and Layer 3 Ethernet
interfaces.

3.3.1 Establishing the Configuration Task

Before configuring attributes for an Ethernet interface, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the data required for the
configuration. This will help you complete the configuration task quickly and accurately.
Applicable Environment
The configuration task is required in the following cases:
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Issue 01 (2012-04-20)
NOTE
By default, an Ethernet interface works in auto-negotiation mode. The default mode is recommended. If
auto-negotiation succeeds, interfaces on both ends work at the same duplex mode and rate.
NOTE
You can configure the description for an Ethernet interface to facilitate identification,
maintenance, and configuration of the interface.
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3 Ethernet Interface Configuration
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