Cambium Networks PTP 820 Series User Manual page 857

Chapter 18: Ethernet Services and Interfaces (CLI)
Configuring an Interface's IFG (CLI)
The IFG attribute represents the physical port Inter-frame gap. Although you 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.
To configure an Ethernet interface's IFG, go to interface view for the interface and enter the following command:
eth type eth [x/x]>ifg set <ifg>
Table 207 Interface IFG CLI Parameters
Parameter Input Type
ifg Number
The following command sets the ifg for Ethernet port 3 to 12:
eth type eth [1/3]>ifg set 12
The following displays the currently configured ifg for Ethernet port 1:
eth type eth [1/1]>ifg get
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 208 Interface Preamble CLI Parameters
Parameter Input Type
preamble Number
The following command sets the preamble for Ethernet port 6 to 8:
eth type eth [1/6]>preamble set 8
The following command displays the current preamble for Ethernet port 5:
eth type eth [1/5]>preamble get
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>
Permitted Values Description
6 - 15 Sets the interface's IFG (in bytes).
Permitted Values Description
6 - 15 Sets the interface's preamble (in bytes).
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Configuring Ethernet Interfaces (CLI)