Vigitron MaxiiNet Vi30126 Series, Operation Manual

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IGMP Querier
A router sends IGMP Query messages onto a particular link. This router is called
the Querier.
IP
IP is an acronym for Internet Protocol. It is a protocol used for communicating
data across an internet network.
IP is a "best effort" system, which means that no packet of information sent over
is assured to reach its destination in the same condition it was sent. Each device
connected to a Local Area Network (LAN) or Wide Area Network (WAN) is given
an Internet Protocol address, and this IP address is used to identify the device
uniquely among all other devices connected to the extended network.
The current version of the Internet protocol is IPv4, which has 32-bits Internet
Protocol addresses allowing for in excess of four billion unique addresses. This
number is reduced drastically by the practice of webmasters taking addresses in
large blocks, the bulk of which remain unused. There is a rather substantial
movement to adopt a new version of the Internet Protocol, IPv6, which would
have 128-bits Internet Protocol addresses. This number can be represented
roughly by a three with thirty-nine zeroes after it. However, IPv4 is still the
protocol of choice for most of the Internet.
L
LACP
LACP is an IEEE 802.3ad standard protocol. The Link Aggregation Control
Protocol, allows bundling several physical ports together to form a single logical
port.
LLC
The IEEE 802.2 Logical Link Control (LLC) protocol provides a link mechanism
for upper layer protocols. It is the upper sub-layer of the Data Link Layer and
provides multiplexing mechanisms that make it possible for several network
protocols (IP, IPX) to coexist within a multipoint network. LLC header consists of
1 byte DSAP (Destination Service Access Point), 1 byte SSAP (Source Service
Access Point), 1 or 2 bytes Control field followed by LLC information.
LLDP is an IEEE 802.1ab standard protocol.