Additional Wireless Terms - ZyXEL Communications NWA-3160 User Manual

• If IEEE 802.1x user authentication is enabled and to be done locally on the
access point, the new access point must have the user profile for the wireless
station.
• The adjacent access points should use different radio channels when their
coverage areas overlap.
• All access points must use the same port number to relay roaming information.
• The access points must be connected to the Ethernet and be able to get IP
addresses from a DHCP server if using dynamic IP address assignment.
To enable roaming on your NWA, click WIRELESS > Wireless. The screen
appears as shown.
Figure 83 Enabling Roaming
Select the Enable Roaming check box and click Apply.
Note: Roaming cannot be enabled in Bridge / Repeater mode.

8.3.8 Additional Wireless Terms

Table 32 Additional Wireless Terms
TERM
Intra-BSS Traffic
RTS/CTS Threshold
Preamble
Fragmentation
Threshold
NWA-3160 Series User's Guide
DESCRIPTION
This describes direct communication (not through the NWA)
between two wireless devices within a wireless network. You might
disable this kind of communication to enhance security within your
wireless network.
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
NWA. 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 NWA.
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 NWA does, it cannot communicate with
the NWA.
A small fragmentation threshold is recommended for busy
networks, while a larger threshold provides faster performance if
the network is not very busy.
Chapter 8 Wireless Screen
135