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Interlogix NS3550-2T-8S User Manual User Manual

Page 623

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IFS NS3552-8P-2S AND NS3550-2T-8S User Manual

623

NFS

NFS is an acronym for 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

NTP is an acronym for Network Time Protocol, a network protocol for synchronizing the clocks of computer systems.

NTP uses UDP (datagrams) as transport layer.

O

Optional TLVs.

A LLDP frame contains multiple TLVs

For some TLVs it is configurable if the switch shall include 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

OUI is the 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 which forms the first 24 bits of a

MAC address.

P

PCP

PCP is an acronym for 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

PD is an acronym for 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

PHY is an abbreviation for Physical Interface Transceiver and is the device that implements the Ethernet physical layer

(IEEE-802.3).

PING

ping is a program that sends a series of packets over a network or the Internet to a specific computer in order to

generate a response from that computer. The other computer responds with an acknowledgment that it received the

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