Interlogix NS3562-8P-2S, Руководство пользователя

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236 NS3562-8P-2S User Manual
NetBIOS Network Basic Input/Output System. It is a program that allows
applications on separate computers to communicate within a
Local Area Network (LAN), and it is not supported on a Wide
Area Network (WAN).
The NetBIOS provides each computer in the network both a
NetBIOS name and an IP address corresponding to a different
host name, as well as the session and transport services
described in the Open Systems Interconnection (OSI) model.
NFS Network File System. It allows hosts to mount partitions on a
remote system and use them as though they are local file
systems.
NFS allows the system administrator to store resources in a
central location on the network, providing authorized users
continuous access to them, which means NFS supports
sharing of files, printers, and other resources as persistent
storage over a computer network.
NTP Network Time Protocol. A network protocol for synchronizing
the clocks of computer systems. NTP uses UDP (datagrams)
as the transport layer.
O
OAM Operation Administration and Maintenance. It is a protocol
described in ITU-T Y.1731 used to implement carrier Ethernet
functionality. MEP functionality like CC and RDI is based on
this.
Optional TLVs A LLDP frame contains multiple TLVs
For some TLVs it is configurable if the switch includes the TLV
in the LLDP frame. These TLVs are known as optional TLVs. If
an optional TLVs is disabled, the corresponding information is
not included in the LLDP frame.
OUI Organizationally Unique Identifier. An OUI address is a globally
unique identifier assigned to a vendor by IEEE. You can
determine which vendor a device belongs to according to the
OUI address that forms the first 24 bits of a MAC address.
P
PCP Priority Code Point. It is a 3-bit field storing the priority level for
the 802.1Q frame. It is also known as User Priority.
PD Powered Device. In a PoE> system the power is delivered from
a PSE ( power sourcing equipment ) to a remote device. The
remote device is called a PD.
PHY Physical Interface Transceiver. It is the device that implements
the Ethernet physical layer (IEEE-802.3).