Vigitron MaxiiNet Vi32226, Operational Manual

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NTP
Network Time Protocol (NTP) is a network protocol for synchronizing the clocks
of computer systems. NTP uses UDP (datagrams) as transport layer.
O
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.
Option 82
Option 82 provides information about the DHCP client network location. The
DHCP server than uses this information to implement the IP address and other
client information. Option 82 supports RFC 3046 which is the DHCP Relay Agent
Information Option. Its use helps in protection the spoofing (forging) of IP and
MAC addresses.
P
PCP
Priority Code Point (PCP) 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
Physical Interface Transceiver (PHY) 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 packets.
Ping was created to verify whether a specific computer on a network or the
Internet exists and is connected.
Ping uses Internet Control Message Protocol (ICMP) packets. The PING Request
is the packet from the origin computer, and the PING Reply is the packet
response from the target.
PoE
Power over Ethernet (PoE) is used to transmit electrical power to remote devices
over standard Ethernet cable. It could be used for powering IP telephones,