ifs NS3562-8P-2S-V2, Руководство пользователя

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346 NS3562-8P-2S-V2 Industrial Managed Switch User Manual
IP Internet Protocol. It is a protocol used for communicating data
across a internet network.
IP is a "best effort" system, which means that no packet of
information sent over it 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
IP address, and this IP address is used to identify the device
uniquely among all other devices connected to the extended
network.
The most widely used version of the Internet protocol is IPv4,
which has 32-bit IP addresses allowing for over four billion
unique addresses. There is a substantial movement to adopt a
new version of the Internet Protocol, IPv6, which would have
128-bit IP 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.
IPMC IP MultiCast
IP Source Guard IP Source Guard is a secure feature used to restrict IP traffic
on DHCP snooping untrusted ports by filtering traffic based on
the DHCP Snooping Table or manually configured IP Source
Bindings. It helps prevent IP spoofing attacks when a host tries
to spoof and use the IP address of another host.
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.
LLDP Link Layer Discovery Protocol is an IEEE 802.1ab standard
protocol.
The LLDP specified in this standard allows stations attached to
an IEEE 802 LAN to advertise to other stations attached to the
same IEEE 802 LAN the major capabilities provided by the
system incorporating that station, the management address or
addresses of the entity or entities that provide management of
those capabilities, and the identification of the station
’s point of
attachment to the IEEE 802 LAN required by those
management entity or entities. The information distributed via
this protocol is stored by its recipients in a standard
Management Information Base (MIB), making it possible for
the information to be accessed by a Network Management
System (NMS) using a management protocol such as the
Simple Network Management Protocol (SNMP).
LLDP-MED LLDP-MED is an extendsion of IEEE 802.1ab and is defined by
the telecommunication industry association (TIA-1057).
LOC LOC is an acronym for Loss Of Connectivity and is detected by
a MEP and indicates lost connectivity in the network. Can be
used as a switch criteria by EPS.