qpcom QP-W4400NUSB, Руководство пользователя

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Troubleshooting
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9 Glossary
1. IEEE 802.11 Standard
The IEEE 802.11 Wireless LAN standards subcommittee, which is formulating a standard for the
industry.
2. Access Point
An internetworking device that seamlessly connects wired and wireless networks together.
3. Ad Hoc
An Ad Hoc wireless LAN is a group of computers, each with a WLAN adapter, connected as an
independent wireless LAN. Ad Hoc wireless LAN is applicable at a departmental scale for a branch
or SOHO operation.
4. BSSID
A specific Ad Hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be
configured with the same BSSID.
5. DHCP
Dynamic Host Configuration Protocol - a method in which IP addresses are assigned by server
dynamically to clients on the network. DHCP is used for Dynamic IP Addressing and requires a
dedicated DHCP server on the network.
6. Direct Sequence Spread Spectrum
This is the method the wireless cards use to transmit data over the frequency spectrum. The other
method is frequency hopping. Direct sequence spreads the data over one frequency range (channel)
while frequency hopping jumps from one narrow frequency band to another many times per second.
7. ESSID
An Infrastructure configuration could also support roaming capability for mobile workers. More than
one BSS can be configured as an Extended Service Set (ESS). Users within an ESS could roam
freely between BSSs while served as a continuous connection to the network wireless stations and
Access Points within an ESS must be configured with the same ESSID and the same radio
channel.
8. Ethernet
Ethernet is a 10/100Mbps network that runs over dedicated home/office wiring. Users must be wired
to the network at all times to gain access.
9. Gateway
A gateway is a hardware and software device that connects two dissimilar systems, such as a LAN
and a mainframe. In Internet terminology, a gateway is another name for a router. Generally a
gateway is used as a funnel for all traffic to the Internet.
10. IEEE
Institute of Electrical and Electronics Engineers Infrastructure. An integrated wireless and wired LAN
is called an Infrastructure configuration. Infrastructure is applicable to enterprise scale for wireless
access to central database, or wireless application for mobile workers.
11. ISM Band
The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in
the so-called ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in
particular, is being made available worldwide. This presents a truly revolutionary opportunity to place
convenient high-speed wireless capabilities in the hands of users around the globe.
12. Local Area Network (LAN)
A LAN is a group of computers, each equipped with the appropriate network adapter card connected
by cable/air, that share applications, data, and peripherals. All connections are made via cable or
wireless media, but a LAN does not use telephone services. It typically spans a single building or
campus.
13. Network
A network is a system of computers that is connected. Data, files, and messages can be
transmitted over this network. Networks may be local or wide area networks.
14. Protocol
A protocol is a standardized set of rules that specify how a conversation is to take place, including
the format, timing, sequencing and/ or error checking.
15. SSID
A Network ID unique to a network. Only clients and Access Points that share the same SSID are
able to communicate with each other. This string is case-sensitive.
16. Static IP Addressing