OvisLink Corp. AIRMAX2 Manuel D’Utilisation

13. Wireless Network Glossary 

 

 

 
 
 

 
802.11g 
A standard provides a throughput up to 54 Mbps using OFDM technology.    It also 
operates in the 2.4 GHz frequency band as 802.11b.    802.11g devices are backward 
compatible with 802.11b devices. 
 
 
802.11i 
The IEEE standard for wireless security.    802.11i standard includes TKIP, CCMP, and 
AES encryption to improve wireless security.    It is also know as WPA2. 
 
 
802.1x 
802.1x is a security standard for wired and wireless LANs. In the 802.1x parlance, there are 
usually supplicants (client), authenticator (switch or AP), and authentication server (radius 
server) in the network.    When a supplicants request a service, the authenticator will pass 
the request and wait for the authentication server to grant access and register accounting.   
The 802.1x is the most widely used method of authentication by WISP. 
 
 
Adhoc 
A Peer-to-Peer wireless network.    An Adhoc wireless network do not use wireless AP or 
router as the central hub of the network. Instead, wireless client are connected directly to 
each other. The disadvantage of Adhoc network is the lack of wired interface to Internet 
connections.    It is not recommended for network more than 2 nodes. 
 
 
Access Point (AP) 
The central hub of a wireless LAN network.    Access Points have one or more Ethernet 
ports that can connect devices (such as Internet connection) for sharing.    Multi-function 
Access Point can also function as an Ethernet client, wireless bridge, or repeat signals from 
other AP.    Access Points typically have more wireless functions comparing to wireless 
routers. 
 
 
ACK Timeout 
Acknowledgement Timeout Windows. When a packet is sent out from one wireless station 
to the other, it will waits for an Acknowledgement frame from the remote station.  The 
station will only wait for a certain amount of time, this time is called the ACK timeout.    If the 
ACK is NOT received within that timeout period then the packet will be re-transmitted 
resulting in reduced throughput. If the ACK setting is too high then throughput will be lost