Network Router User Manual

5/26/05 Glossary
OL-7426-03
802.11i
A developing IEEE wireless LAN security standard. A subset of the 802.11i standard, WPA, is being
deployed at this time.
802.1X
An IEEE authentication framework for 802.11 networks. Allows multiple authentication algorithms,
including EAP and RADIUS.
Access Point
A wireless LAN transceiver or “base station” that can connect a wired LAN to one or many wireless
devices. Some access points can also bridge to each other.
ACL
ACL
Access Control List. ACLs define what traffic types will be allowed or denied across one or more Inter-
faces. Each traffic type can be used in multiple ACLs, depending on up to 64 Rules defined for each ACL.
If no ACL is applied to an Interface, all traffic types are allowed.
Ad-Hoc Mode
A client setting that provides independent peer-to-peer connectivity in a wireless LAN. An alternative
set-up is one where PCs communicate with each other through an AP. See access point and Infrastruc-
ture mode.
AES
Advanced Encryption Standard. An encryption algorithm selected by the 802.11i task group to provide
robust security in wireless networks.
Operating System
Operating System. Software that controls Cisco 4100 Series Wireless LAN Controllers and Cisco 1000
Series Lightweight Access Points. Includes Radio Resource Management (RRM) and Operating System
Security functions.
Operating System Security
Part of the Operating System that controls all aspects of Security and roaming for the Cisco Wireless
LAN Solution (Cisco WLAN Solution), providing seamless access to business-critical resources.
Radio Resource Management (RRM)
Part of the Operating System that continually monitors associated Cisco 1000 Series lightweight access
points for Traffic Load, Interference, Noise, Coverage, and Nearby access points.
Using the collected information, the Radio Resource Management (RRM) dynamically reassigns
channels, adjusts the transmit power to load balance coverage and capacity, allows the operator to
group nearby Cisco 1000 Series lightweight access points, automatically detects and configures new
Cisco 1000 Series lightweight access points, automatically detects and configures new Cisco Wireless
LAN Controllers, and detects and reports coverage holes.
AP
See Access Point.
API
API
Application Programming Interface. The interface an application uses to call the operating system and
other services. The API is usually defined at the source code level, and provides an interface between
the application and the operating system.