MeshLinx MWI-5000 User Guide
MESHLINX CONFIDENTIAL
9
any gateway (where one network meets another), including each Internet point-of-
presence. A router is often included as part of a network switch.
Routing is a function associated with the Network layer (layer 3) in the standard
model of network programming, the Open Systems Interconnection (OSI) model. A
layer-3 switch is a switch that can perform routing functions.
RRM
: Radio Resource Measurement (RRM) refers to 802.11k amendment.
SDMA:
Spatial Division Multiple Access (SDMA) is a communications mode that
optimizes the use of the radio spectrum and minimizes the system cost by taking
advantage of methods to segment geographic areas.
SIFS:
Short Inter-Frame Space are found in IEEE 802.11 networks. Employed for
the highest priority transmissions that enables stations with this type of
SNMP:
Simple Network Management Protocol (SNMP) is the protocol governing
network management and the monitoring of network devices and their functions. It
is not necessarily limited to TCP/IP networks.
SNMP is described formally in the Internet Engineering Task Force (IETF)
Request for Comment (RFC) 1157 and in a number of other related RFCs.
Switch:
In telecommunications, a switch is a network device that selects a path or
circuit for sending a unit of data to its next destination. A switch may also include
the function of the router, a device or program that can determine the route and
specifically what adjacent network point the data should be sent to. In general, a
switch is a simpler and faster mechanism than a router, which requires knowledge
about the network and how to determine the route.
Relative to the layered Open Systems Interconnection (OSI) communication model,
a switch is usually associated with layer 2, the Data-Link layer. However, some
newer switches also perform the routing functions of layer 3, the Network layer.
Layer 3 switches are also sometimes called
IP switches
.
TCP:
Transmission Control Protocol (TCP) is a set of rules (protocol) used along
with the Internet Protocol (IP) to send data in the form of message units between
computers over the Internet. While IP handles the actual delivery of the data, TCP
keeps track of the individual units of data (called packets) that a message is divided
into for efficient routing through the Internet.
TCP is a connection-oriented protocol, which means that a connection is
established and maintained until such time as the message or messages to be
exchanged by the application programs at each end have been exchanged. TCP is
responsible for ensuring that a message is divided into the packets that IP manages
and for reassembling the packets back into the complete message at the other end.
In the Open Systems Interconnection (OSI) communication model, TCP is in layer
4, the Transport Layer.
TCP/IP:
Transmission Control Protocol/Internet Protocol(TCP/IP) is the basic
communication language or protocol of the Internet. It can also be used as a
communications protocol in a private network (either an intranet or an extranet).
When you are set up with direct access to the Internet, your computer is provided
