The new smart sensors in the AirDefense 3.5 system include dual radios to simultaneously monitor all three wireless LAN
standards -- 802.11b and 802.11g WLAN activity on the 2.4 GHz frequency spectrum and 802.11a traffic on the 5.0 GHz frequency spectrum.
(The school took over support, and under the new wireless system provided free access to owners of the rogue points.) Thanks to these efforts, he adds, today it's rare that students access the wireless LAN
at speeds less than 5 or 6 mbps.
If the public is not clamoring for access, how have fast-food chains and coffee houses been beguiled into thinking wireless LAN
connections are going to bring diners into their establishments?
segments are bridged within a backbone router to create virtual LANs
Thus, even if your office is not expensively wired for a LAN
, you can exchange files with a colleague down the hall as long as both of you are connected to the Internet.
So, while you, as the end user, may see only the PC at your desk, your management memos, source data, and final report documents may be stored on different computers on different LANs
. If you send a review copy of your report by electronic mail, it may traverse several more LANs
before reaching its destination.
Downsizing, departmental LAN
computing, and other changes in organizational computing have made network computing a routine and essential part of the daily operation of business-from law and accounting firms, sales branches, medical groups and administrative departments, to retail and manufacturing offices, not to mention typewriters and hand calculators.
(8)In contrast to CD-ROM's static nature, which is similar to a WORM (Write Once Read Many) disk, erasable optical disks are beginning to appear, especially with LANs
. An erasable optical disk also uses laser technology but can be written over and reused just like a floppy or hard disk.
Level II LANs
integrate other networks and intelligent devices within a facility.
The first layer of protection in an IP SAN is the wall separating the internal network or Local Area Network (LAN
) from the outside networks.
So what makes Antonio Mata, executive committee president of Aerolineas Argentinas, think he can overtake top gun Chilean airline LAN
and become the region's first bona fide mega-carrier?
"AirPatrol secures wireless LANs
with enterprise solutions that go beyond encryption and authentication to provide effective intrusion detection for wireless LANs
," said Jeff McConocha, president of NCS DataCom.