Introduction To Ethernet Interfaces; Ethernet Interface Features Supported By The S7700 - Huawei Quidway S7700 Configuration Manual - Ethernet

Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet

1.1 Introduction to Ethernet Interfaces

This section describes the Ethernet interfaces.
The Ethernet is flexible, simple, and easy to implement; therefore, it becomes an important local
area network (LAN) networking technology.
Table 1-1
Table 1-1 Attributes of Ethernet interfaces
Interface
Type
Ethernet
electrical
interface
Ethernet
optical
interface
If the local interface works in auto-negotiation mode, the peer interface must also work in auto-
negotiation mode; otherwise, packet loss may occur.

1.2 Ethernet Interface Features Supported by the S7700

This section describes the Ethernet interface features supported by the S7700.
Port Group
The port group function enables you to configure multiple interfaces at the same time. You can
run commands in the port group view to configure all the interfaces in the group.
Auto-Negotiation
The auto-negotiation function allows interfaces on both ends of a link to select the same operating
parameters by exchanging capability information. Each interface sends its capability information
to the remote end and checks capabilities of the remote end. After both interfaces receive the
capability information from each other, they adopt the highest capability they support to
communicate with each other.
The interfaces negotiate the duplex mode, speed, and flow control parameters. After a successful
negotiation, the interfaces use the same duplex mode, speed, and flow control parameters.
Issue 01 (2011-07-15)
shows the attributes of Ethernet electrical interfaces and Ethernet optical interfaces.
Rate (Mbit/ Auto-negotiation
s)
Full
Duplex
10 Yes
100 Yes
1000 Yes
100 No
1000 Yes
10000 No
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1 Ethernet Interface Configuration
Non-negotiation
Half Full
Duplex Duplex
Yes Yes
Yes Yes
No Yes
No Yes
No Yes
No Yes
Half
Duplex
Yes
Yes
No
No
No
No
2