Disabling And Enabling Short Radio Preambles - Allen-Bradley Stratix 5100 User Manual

Disabling and Enabling Short
Radio Preambles
9. Return to global configuration mode.
exit
In this example, the profile southside is enabled on the access point 802.11g
radio:
ap# configure terminal
ap(config)# dot11 lbs southside
ap(dot11-lbs)# server-address 10.91.105.90 port
1066
ap(dot11-lbs)# interface dot11 0
ap(dot11-lbs)# exit
The radio preamble (sometimes called a header) is a section of data at the head of
a packet that contains information that the wireless access point and client
devices need when sending and receiving packets. You can set the radio preamble
to long or short:
• Short
A short preamble improves throughput performance. Cisco Aironet
Wireless LAN Client Adapters support short preambles. Early models of
Cisco Aironet's Wireless LAN Adapter (PC4800 and PC4800A) require
long preambles.
• Long
A long preamble verifies compatibility between the wireless access point
and all early models of Cisco Aironet Wireless LAN Adapters (PC4800
and PC4800A). If these client devices don't associate to the wireless access
points, you can use short preambles.
TIP
Beginning in privileged EXEC mode, follow these steps to disable short radio
preambles:
1. Enter global configuration mode.
configure terminal
2. Enter interface configuration mode for the 2.4 GHz radio interface.
interface dot11radio { 0 }
3. Disable short preambles and enable long preambles.
no preamble-short
4. Return to privileged EXEC mode.
end
Rockwell Automation Publication 1783-UM006A-EN-P - May 2014
You cannot configure short or long radio preambles on the 5 GHz radio.
Configuring Radio Settings Chapter 7
265