Port Physical Characteristics Configuration

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Table of Contents

Table of Contents

Chapter 1 Port Physical Characteristics Configuration............................................................................. 1
1.1 Setting the Ethernet Interface.........................................................................................................1

1.1.1 Setting the Rate.................................................................................................................... 1
1.1.2 Setting the Duplex Mode of an Interface...........................................................................1
1.1.3 Setting Flow Control on an Interface................................................................................. 1

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Port Physical Characteristics Configuration

Chapter 1 Port Physical Characteristics Configuration

1.1 Setting the Ethernet Interface
1.1.1 Setting the Rate

The Ethernet rate can be realized not only through auto-negotiation but also
through interface configuration.

Command Function

Speed {10|100|auto} (TX port) Sets the rate of fast Ethernet to 10M, 100M, 1000M

speed {100 | 1000 | auto }（Optical port or auto-negotiation.
）

No speed Resumes the default settings. The rate is
auto-negotiation.

Note:
The speed of the optical interface is fixed. If the auto parameter is behind the
speed command, it means that you can enable the auto-negotiation function on
the optical interface. Otherwise, you cannot enable the auto-negotiation function
on the optical interface. The gigabit optical interface enables auto-negotiation
function by default. The gigabit combo port does not support configuration of
speed 1000 and force full duplex mode simultaneously.

1.1.2 Setting the Duplex Mode of an Interface
By default, the Ethernet interface can be auto, half duplex or full duplex. The
gigabit combo port does not support configuration of speed 1000 and force full
duplex mode simultaneously.

Command Function

duplex {full | half | auto} Sets the duplex mode of an Ethernet interface.

No duplex Resumes the default settings. The duplex mode is
auto-negotiation.

1.1.3 Setting Flow Control on an Interface
When an interface is in full duplex mode, flow control is realized through the
802.3X-defined PAUSE frame; when an interface is in half duplex mode, flow
control is realized through backpressure.

Command Usage Guidelines

flow-control {on | off | auto} Configuring Flow Control on the Interface

no flow-control Resumes the default settings, that is, there is no
flow control on an interface.

Note:
The difference between “flow-control auto” and “flow-control on” is in the “auto”
mode the device sends flow control frame only when it negotiates successfully with
the opposite end as the system is compelled to receive flow control frame in both
modes.

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Port Physical Characteristics Configuration

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