FibeAir IP-20C/S/E
User Guide
Ceragon Proprietary and Confidential
Page 445 of 597
17.3.8
Configuring an Interface’s Preamble (CLI)
Although you can modify an Ethernet interface’s preamble, it is strongly
recommended not to modify the default value of 8 bytes without a thorough
understanding of how the modification will impact traffic.
To configure an Ethernet interface’s preamble, go to interface view for the
interface and enter the following command:
eth type eth [x/x]>preamble set <preamble>
Table 143: Interface Preamble CLI Parameters
Parameter
Input Type
Permitted
Values
Description
preamble
Number
6 - 15
Sets the interface’s preamble (in bytes).
Example
The following command sets the preamble for GbE 1 to 8:
eth type eth [1/1]>preamble set 8
The following command displays the current preamble for GbE 1:
eth type eth [1/1]>preamble get
17.3.9
Adding a Description for the Interface (CLI)
You can add a text description for an interface. To add a description, go to
interface view for the interface and enter the following command:
eth type eth [x/x]>description set <description>
To delete a description, go to interface view for the interface and enter the
following command:
eth type eth [x/x]>description delete
To display an interface’s description, go to interface view for the interface and
enter the following command:
eth type eth [x/x]>description show
Table 144: Interface Description CLI Parameters
Parameter
Input Type
Permitted
Values
Description
description
Text String
Up to 40
characters
Adds a text description to the interface.
Example
The following command adds the description “Line” to GbE 1:
eth type eth [1/1]>description set Line
