Filter
Top Products
288 AT-TQ2403 - Management Software - User's Guide
In IEEE 802.11 parlance, roaming clients are mobile client stations or devices on a wireless network (WLAN)
that require use of more than one Access Point (AP) as they move out of and into range of different base
station service areas. IEEE 802.11f defines a standard by which APs can communicate information about
client associations and disassociations in support of roaming clients.
Router
A router is a network device which forwards packets between networks. It is connected to at least two
networks, commonly between two local area networks (LANs) or between a LAN and a wide-area network
(WAN), for example, the Internet. Routers are located at gateways—places where two or more networks
connect.
A router uses the content of headers and its tables to determine the best path for forwarding a packet. It
uses protocols such as the Internet Control Message Protocol (ICMP), Routing Information Protocol (RIP),
and Internet Router Discovery Protocol (IRDP) to communicate with other routers to configure the best
route between any two hosts. The router performs little filtering of data it passes.
RSSI
The Received Signal Strength Indication (RSSI) an 802.1x value that calculates voltage relative to the received
signal strength. RSSI is one of several ways of measuring and indicating radio frequency (RF) signal strength.
Signal strength can also be measured in mW (milliwatts), dBms (decibel milliwatts), and a percentage value.
RTP
Real-Time Transport Protocol (RTP) is an Internet protocol for transmitting real-time data like audio and
video. It does not guarantee delivery but provides support mechanisms for the sending and receiving
applications to enable streaming data. RTP typically runs on top of the UDP protocol, but can support other
transport protocols as well.
RTS
A request to send (RTS) message is a signal sent by a client station to the access point, asking permission to
send a data packet and to prevent other wireless client stations from grabbing the radio waves. This message
is a part of the IEEE 802.11 CSMA/CA protocol. (See also RTS Threshold and CTS.)
RTS Threshold
The RTS threshold specifies the packet size at which packet transmission is governed by the RTS/CTS
transaction.
S
Shared Key
A shared key is used in conventional encryption where one key is used both for encryption and decryption.
It is also called secret-key or symmetric-key encryption.
Also see Public Key.
SNMP
The Simple Network Management Protocol (
SNMP)
was developed to manage and monitor nodes on a
network. It is part of the TCP/IP protocol suite.
SNMP consists of managed devices and their agents, and a management system. The agents store data about
their devices in Management Information Bases (MIBs) and return this data to the SNMP management
system when requested.