Lan-To-Lan Network Configuration - Cabletron Systems RoamAbout Access Point Manual

LAN-to-LAN Network Configuration

LAN-to-LAN Network Configuration
There are two types of LAN-to-LAN configurations. The LAN-to-LAN Endpoint Bridge
mode is used in a Point-to-Point configuration to connect two separate wired LANs. The
LAN-to-LAN Multipoint Bridge mode is used in a Point-to-Multipoint configuration to
connect multiple wired LANs. Typically, the LANs are in different buildings and the
configuration requires the RoamAbout outdoor antenna kit.
Consider the following:
•
Type of antenna. Use two directional antennas in a Point-to-Point link. Use one
omni-directional antenna and up to six directional antennas in a Point-to-Multipoint
configuration.
•
Outdoor antenna installation. You should use a professional antenna installation
company to install the outdoor antennas.
•
Grounding system. The Access Point and the outdoor antenna must use the same
grounding system.
•
Connecting of the outdoor antenna to the Access Point, and connecting the Access
Point to the wired LAN.
Refer to the RoamAbout Outdoor Antenna Site Preparation and Installation Guide for the
detailed procedures to determine distances and install an outdoor configuration.
If you are not using an antenna, the Access Points should be within each other's coverage
area. The speed you wish to use for your wireless link is one factor that determines the
distance between the Access Points. Other factors include physical obstructions and noise
levels. The following is an example of the coverage area in a semi-open environment,
which is defined as work space divided by shoulder-height, hollow wall elements. The
distances in your environment may be different.
— 11 Mbit/s - 165 feet (50 meters)
— 5.5 Mbit/s - 230 feet (70 meters)
— 2 Mbit/s - 300 feet (90 meters)
— 1 Mbit/s - 375 feet (115 meters)
Before mounting the Access Point, review the hardware requirements described in the
installation documentation that came with the RoamAbout Access Point.
3-6 Designing and Implementing a Wireless Network