User's Manual

hwc_glossary.fm
Glossary
Controller, Access Points and Convergence Software terms and abbreviations
A31003-W1050-U100-2-7619,
March 2008
HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide 369
Mobility manager (and mobility
agent)
The technique in Controller, Access Points and Convergence Software by which multiple
HiPath Wireless Controllers on a network can discover each other and exchange information
about a client session. This enables a wireless device user to roam seamlessly between
different Wireless APs on different HiPath Wireless Controllers, to provide mobility to the
wireless device user.
One HiPath Wireless Controller on the network must be designated as the mobility manager.
All other HiPath Wireless Controllers are designated as mobility agents. Relying on SLP, the
mobility manager registers with the Directory Agent and the mobility agents discover the
location of the mobility manager.
Data Collector The Data Collector is an application on the HiPath Wireless Controller that receives and
manages the Radio Frequency (RF) scan messages sent by the Wireless AP. This
application is part of the Mitigator technique, working in conjunction with the scanner
mechanism and the Analysis Engine to assist in detecting rogue access points.
Virtual Network Services
(VNS)
The Virtual Network Services (VNS) technique is Siemens's means of mapping wireless
networks to the topology of an existing wired network. When you set up Virtual Network
Services (VNS) on the HiPath Wireless Controller, you are defining subnets for groups of
wireless users. This VNS definition creates a virtual IP subnet where the HiPath Wireless
Controller acts as a default gateway for wireless devices. This technique enables policies
and authentication to be applied to the groups of wireless users on a VNS, as well as the
collecting of accounting information. When a VNS is set up on the HiPath Wireless Controller,
one or more Wireless APs (by radio) are associated with it. A range of IP addresses is set
aside for the HiPath Wireless Controller's DHCP server to assign to wireless devices.
Wireless AP The Wireless AP is a wireless LAN thin access point (IEEE 802.11) provided with unique
software that allows it to communicate only with a HiPath Wireless Controller. (A thin access
point handles the radio frequency (RF) communication but relies on a controller to handle
WLAN elements such as authentication.) The Wireless AP also provides local processing
such as encryption. The Wireless AP is a dual-band access point, with 802.11a/b/g/n radios.
Term Explanation
Table 30