3Com 3c17300 Implementation Guide - Page 97

Internet Group, Management, Protocol, Intranet, IP address, Jitter, latency, line speed

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99 Internet Group Management Protocol Internet Group Management Protocol (IGMP) is a protocol that runs between hosts and their immediate neighboring multicast routers. The protocol allows a host to inform its local router that it wishes to receive transmissions addressed to a specific multicast group. Based on group membership information learned from the IGMP, a router is able to determine which if any multicast traffic needs to be forwarded to each of its subnetworks. Intranet An Intranet is an organisation wide network using Internet protocols such as web services, TCP/IP, HTTP and HTML. An Intranet is normally used for internal communication and information, and is not accessible to computers on the wider Internet. IP Internet Protocol. IP is a layer 3 network protocol that is the standard for sending data through a network. IP is part of the TCP/IP set of protocols that describe the routing of packets to addressed devices. IPX Internetwork Packet Exchange. IPX is a layer 3 and 4 network protocol designed for networks that use Novell® Netware®. IP address Internet Protocol address. A unique identifier for a device attached to a network using TCP/IP. The address is written as four octets separated with periods (full-stops), and is made up of a network section, an optional subnet section and a host section. Jitter An expression often used to describe the end-to-end delay variations during the course of a transmission. See also latency. LAN Local Area Network. A network of endstations (such as PCs, printers, servers) and network devices (hubs and switches) that cover a relatively small geographic area (usually not larger than a floor or building). LANs are characterized by high transmission speeds over short distances (up to 1000 m). LLC Logical Link Control. A sublayer of the IEEE data link layer that is located above the MAC sublayer. The LLC sublayer is responsible for MAC sublayer addressing, flow control, error control, and framing. latency The delay between the time a device receives a packet and the time the packet is forwarded out of the destination port. line speed See baud.

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99
Internet Group
Management
Protocol
Internet Group Management Protocol (IGMP) is a protocol that runs
between hosts and their immediate neighboring multicast routers. The
protocol allows a host to inform its local router that it wishes to receive
transmissions addressed to a specific multicast group. Based on group
membership information learned from the IGMP, a router is able to
determine which if any multicast traffic needs to be forwarded to each
of its subnetworks.
Intranet
An Intranet is an organisation wide network using Internet protocols
such as web services, TCP/IP, HTTP and HTML. An Intranet is normally
used for internal communication and information, and is not accessible
to computers on the wider Internet.
IP
Internet Protocol. IP is a layer 3 network protocol that is the standard
for sending data through a network. IP is part of the TCP/IP set of
protocols that describe the routing of packets to addressed devices.
IPX
Internetwork Packet Exchange. IPX is a layer 3 and 4 network protocol
designed for networks that use Novell
®
Netware
®
.
IP address
Internet Protocol address. A unique identifier for a device attached to a
network using TCP/IP. The address is written as four octets separated
with periods (full-stops), and is made up of a network section, an
optional subnet section and a host section.
Jitter
An expression often used to describe the end-to-end delay variations
during the course of a transmission. See also
latency
.
LAN
Local Area Network. A network of endstations (such as PCs, printers,
servers) and network devices (hubs and switches) that cover a relatively
small geographic area (usually not larger than a floor or building). LANs
are characterized by high transmission speeds over short distances (up
to 1000 m).
LLC
Logical Link Control. A sublayer of the IEEE data link layer that is
located above the MAC sublayer. The LLC sublayer is responsible for
MAC sublayer addressing, flow control, error control, and framing.
latency
The delay between the time a device receives a packet and the time the
packet is forwarded out of the destination port.
line speed
See
baud
.