[Point – to – (Multi) point Deployment)]

In the real world of networking, a wired network is generally preferable
to a wireless connection.  However, a wired connection is not always
possible, due to a prohibitively high cost of running Ethernet or
fiber.  In some cases, it may simply not be physically possible to
run cabling.

An alternative to a wired link is a wireless bridge, known as a wireless
distribution system (WDS).  A wireless bridge connects two or more
networks together and acts like a “wireless wire” from the
perspective of both sides of the link. The bridge itself is transparent to
Layer 2/3 traffic transmitted over the link.

This article provides recommendation to EnGenius users/installers on how
to ensure a stable and reliable wireless backhaul deployment. 

  • Manually initiate channel scan process at any time. This can be done by
    using Wi-Fi Analyzer, such as MetaGeek inSSIDer, or a spectrum analyzer,
    such as the MetaGeek WiSpy dBx.
    http://www.metageek.com/support/downloads/

  • EnGenius recommends manually running the channel optimizer again each
    time additional non root bridges are added (after the aiming process is
    complete). This allows the bridges to accommodate any RF interference at
    the new non-root bridge that would prevent optimal performance. 
  • Whenever possible, EnGenius recommends using the DFS channels (UNII-2
    and UNII-2e shown in yellow below) for a wireless bridge link, as these
    frequencies are generally less used compared to the UNII-1 and UNII-3
    bands (shown in white), which are popular for consumer Wi-Fi.

  • If performance is still poor after channel optimization and power
    adjustment, this may be due to nearby RF interference or positioning; in
    first case, check for a different channel. In the second case, try to
    re-aim the units. If none of these procedures works, a change of
    location for one or more of the units may be required.