June 30, 2006
Confidential
Document Number BDTM10001-A05 Standard
BelAir100 User Guide
System Overview
• one battery and charger
• one environmental enclosure with radomes
• an external connector field
In a BelAir100, one of the radio modules is also responsible for centralized
control of the unit, including packet forwarding and all OAM tasks.
BelAir100 Layer 2
View
At the layer 2 (data-link) layer, the BelAir100 acts as a bridge and layer 2 switch.
See Figure 4.
The layer 2 switch ports are connected to the BelAir100 input/output devices,
such as the access radio and backhaul radios. The BelAir100 layer 2 switch
forwards layer 2 frames to the output of one or multiple ports based on the
information contained in the frame header.
Figure 4: BelAir100 Layer 2 View, Typical Configuration
BelAir100 - Layer 2
LPM
eth0
eth1
Wireless
Access
Point
Line Interface
access radio
(ARM1)
backhaul radio
Layer 2 switch
(BRM1)
Backhaul and
Mesh Links