GE MDS SD Series Technical Manual page 62

the data VLAN. This ID is used for filtering and tagging purposes. Any valid ID from
to may be entered. The Default Mgmt VLAN ID is
4095
•
Access Mode Tag
•
Native VLAN (Trunk)
default setting is
untagged traffic. If it is disabled then both interfaces require traffic to be tagged with a
VLAN ID.
NOTE When VLAN mode is set to anything other than
seen by the
Mgmt VLAN
IP address of the radio as seen by
menu. This removes the need for the
NOTE The
VLAN Mode
for data to flow correctly. Failure to do so may result in data not being transported cor-
rectly even when the radios are able to communicate over-the-air via an RF link.
Listen Before Transmit (LBT) Settings
The transceiver provides a legacy collision avoidance scheme called Listen Before Transmit
(LBT). It employs P-Persistent CSMA protocol, which senses channel usage and inhibits trans-
mission if the channel is currently in use. CSMA is an abbreviation for Carrier Sense Multiple
Access. This setting is superseded by Packet w/MAC and should only be used in legacy systems
and special use cases. Packet w/MAC is the preferred method for collision avoidance.
NOTE The Listen Before Transmit (LBT) feature requires radios to be configured for Packet
Mode operation. Packet w/MAC operation provides an alternative method for media ac-
cess.
•
Listen Before Transmit
Packet Radio Mode.
• — LBT can be configured to behave in one of two ways; either listen on the
LBT Behavior
radio's transmit frequency (TX) or listen on the radio's receive frequency (RX). Typical-
ly, Remote radios are configured to
with the Master unit. In split frequency operation,
choices depend on the data transmission characteristics of the connected system.
52
— Read only parameter (Reserved for Future use)
— Defines the native VLAN interface as
. Enabling this feature on an interface tells that interface to allow
Disabled
should be specified in the
Data VLAN
parameter must be consistent at both the AP and Remote radios in order
— Used to activate or deactivate LBT when the radio is running in
Listen on RX
SD Series Technical Manual
.
1
, the IP address of the radio as
Disabled
IP Configuration
should be specified in the
parameter.
Gateway IF
(the default selection) to avoid collisions
Listen on TX
or
Mgmt, Data, Disabled
menu. Additionally, the
IP2 Configuration
may be preferred. Optimal
MDS 05-4846A01, Rev. I
1
. The