Additional Wireless Terms - ZyXEL Communications P-870HN-51B - V1.0 Manual

Chapter 7 Wireless LAN
The wireless network is the part in the blue circle. In this wireless network,
devices A and B use the access point (AP) to interact with the other devices (such
as the printer) or with the Internet. Your ZyXEL Device is the AP.
Every wireless network must follow these basic guidelines.
• Every device in the same wireless network must use the same SSID.
The SSID is the name of the wireless network. It stands for Service Set IDentity.
• If two wireless networks overlap, they should use a different channel.
Like radio stations or television channels, each wireless network uses a specific
channel, or frequency, to send and receive information.
• Every device in the same wireless network must use security compatible with
the AP.
Security stops unauthorized devices from using the wireless network. It can also
protect the information that is sent in the wireless network.

7.10.2 Additional Wireless Terms

The following table describes some wireless network terms and acronyms used in
the ZyXEL Device's Web Configurator.
Table 35 Additional Wireless Terms
TERM
RTS/CTS Threshold
Preamble
Authentication
Fragmentation
Threshold
122
DESCRIPTION
In a wireless network which covers a large area, wireless devices
are sometimes not aware of each other's presence. This may cause
them to send information to the AP at the same time and result in
information colliding and not getting through.
By setting this value lower than the default value, the wireless
devices must sometimes get permission to send information to the
ZyXEL Device. The lower the value, the more often the devices must
get permission.
If this value is greater than the fragmentation threshold value (see
below), then wireless devices never have to get permission to send
information to the ZyXEL Device.
A preamble affects the timing in your wireless network. There are
two preamble modes: long and short. If a device uses a different
preamble mode than the ZyXEL Device does, it cannot communicate
with the ZyXEL Device.
The process of verifying whether a wireless device is allowed to use
the wireless network.
A small fragmentation threshold is recommended for busy networks,
while a larger threshold provides faster performance if the network
is not very busy.
P-870HN-51b User's Guide