User`s guide

Ethernet or Token Ring Bridge xxiii

Figure 0.2 - Point-to-Multipoint Wireless Bridge

When connecting three or more LANs (usually in different buildings), each

building requires an Aironet Wireless Bridge and antenna. This is called a Mul-

tipoint Wireless Bridge Conﬁguration. One Wireless Bridge is designated as the

central site. Its antenna is conﬁgured to transmit and receive signals from the

Wireless Bridges at the other sites. Generally, the central site is equipped with

an omni-directional antenna that provides radio signal coverage in all direc-

tions. The other Wireless Bridges are typically served by directional antennas

that direct radio signals toward the central site.

Under a Multipoint Wireless Bridge Conﬁguration, workstations on any of the

LANs can communicate with other workstations or with any workstations on

the remote LANs.

The following example shows an example of a Point-to-Multipoint Conﬁgura-

tion. Packets sent between Workstation A and Workstation B are forwarded by

their respective Wireless Bridges to the root unit. Then the root unit forwards

these packets to the appropriate Wireless Bridge for routing to the worksta-

tions. Packets sent between the ﬁle server and the remote workstations are

routed through the root unit and the appropriate Wireless Bridge.

Root Unit

LAN Segment CLAN Segment B

File Server

LAN Segment A

Wireless

Bridge

Wireless

Bridge

Workstation A Workstation B