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Frame Relay. A network interface providing high-speed packet transmission
with minimum delay. Uses variable-length packets called frames. Contrast
with packet.
with minimum delay. Uses variable-length packets called frames. Contrast
with packet.
Full Duplex. Capable of handling simultaneous data transmission between a
sending station and a receiving station.
sending station and a receiving station.
ICMP. Internet Control Message Protocol. Internet protocol that reports errors
and provides other information relevant to IP packet processing, such as
routing information.
and provides other information relevant to IP packet processing, such as
routing information.
IGMP. Internet Group Management Protocol. Transport layer multicasting
protocol used by IP hosts to register their dynamic multicast group
membership. It is also used by connected routers to discover these group
members.
protocol used by IP hosts to register their dynamic multicast group
membership. It is also used by connected routers to discover these group
members.
Inverse ARP. Inverse Address Resolution Protocol. Enables routers to obtain
the IP address of a known Ethernet address of a device associated with a
virtual circuit. Method of building dynamic routes in a network.
the IP address of a known Ethernet address of a device associated with a
virtual circuit. Method of building dynamic routes in a network.
IP. Internet Protocol. Part of the TCP/IP protocol. IP networks are
connectionless, packet switching networks.
connectionless, packet switching networks.
IP address. 32-bit address assigned to hosts using TCP/IP. An IP address
contains four octets separated by periods, also known as a dotted quad
address. Each address consists of a network number, an optional sub-network
number and a host number. The network and sub-network numbers together
are used for routing, while the host number is used to address an individual
host within the network or sub-network.
contains four octets separated by periods, also known as a dotted quad
address. Each address consists of a network number, an optional sub-network
number and a host number. The network and sub-network numbers together
are used for routing, while the host number is used to address an individual
host within the network or sub-network.
IP SNAP. Sub-network Access Protocol. Internet protocol that operates
between a network entity in the sub-network and a network entity in the end
system. SNAP specifies a standard method of encapsulating IP datagrams and
ARP messages on IEEE networks. The SNAP entity in the end system makes
use of the services of the sub-network and performs three essential functions:
data transfer, connection management and QOS selection.
between a network entity in the sub-network and a network entity in the end
system. SNAP specifies a standard method of encapsulating IP datagrams and
ARP messages on IEEE networks. The SNAP entity in the end system makes
use of the services of the sub-network and performs three essential functions:
data transfer, connection management and QOS selection.
LAN. Local Area Network. Privately owned network-connecting devices over
a limited geographic area—usually limited to an office or office complex.
Often connected to the Internet via IADs, with firewall software to limit
access to the LAN by authorized users. May use TCP/IP or one of several
other protocols.
a limited geographic area—usually limited to an office or office complex.
Often connected to the Internet via IADs, with firewall software to limit
access to the LAN by authorized users. May use TCP/IP or one of several
other protocols.
LMI. Local Management Interface. A set of the following enhancements to
the basic Frame Relay specification. Called LMT in ANSI terminology.
the basic Frame Relay specification. Called LMT in ANSI terminology.
•
a keep-alive mechanism that verifies that data is flowing.
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a multi-cast mechanism, which provides the network server with its local
DLCI and the multi-cast DLCI.
•
Global addressing; this gives DLCIs global rather than local significance in
Frame Relay networks.
•
a mechanism that provides an on-going status report on the DLCIs known to
the switch.