
Chapter 4: Feature Description
Ethernet Features
Physical Interfaces
The physical interfaces refer the real traffic ports (layer 1) that are connected to the network. The
Media Type attribute defines the Layer 1 physical traffic interface type, which can be:
•
Radio interface
•
RJ-45 or SFP Ethernet interface
Physical Interface Attributes
The following physical interface parameters can be configured by users:
•
Admin – Enables or disables the physical interface. This attribute is set via the Interface
Manager section of the Web EMS.
•
Auto Negotiation – Enables or disables auto-negotiation on the physical interface. Auto
Negotiation is always off for radio and SFP interfaces.
•
Speed and Duplex – The physical interface speed and duplex mode. Permitted values are:
o
Ethernet RJ-45 interfaces: 10Mbps HD, 10Mbps FD, 100Mbps HD, 100Mbps FD and
1000Mpbs FD.
o
Ethernet SFP interfaces: Only 1000FD is supported
o
Radio interfaces: The parameter is read-only and set by the system to 1000FD.
•
Flow Control – The physical port flow control capability. Permitted values are: Symmetrical
Pause and/or Asymmetrical Pause. This parameter is only relevant in Full Duplex mode.
•
IFG – The physical port Inter-frame gap. Although users can modify the IFG field length, it is
strongly recommended not to modify the default value of 12 bytes without a thorough
understanding of how the modification will impact traffic. Permitted values are 6 to 15 bytes.
•
Preamble – The physical port preamble value. Although users can modify the preamble field
length, it is strongly recommended not to modify the default values of 8 bytes without a
thorough understanding of how the modification will impact traffic. Permitted values are 6 to
15 bytes.
•
Interface description – A text description of the interface, up to 40 characters.
Users can view the following read-only physical interface status parameters:
•
Operational State – The operational state of the physical interface (Up or Down).
•
Actual Speed and Duplex – The actual speed and duplex value for the Ethernet link as agreed
by the two sides of the link after the auto negotiation process.
•
Actual Flow Control State – The actual flow control state values for the Ethernet link as agreed
by the two sides after the auto negotiation process.
•
Actual Physical Mode (only relevant for RJ-45 interfaces) – The actual physical mode (master
or slave) for the Ethernet link, as agreed by the two sides after the auto negotiation process.
14
This functionality is planned for future release.
Page 4-51
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Страница 156: ...Chapter 6 Standards and Certifications This chapter includes Supported Ethernet Standards Page 6 1 ...
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