KTI Networks KGS-2421 User Manual page 139

clocks of computer systems. NTP uses
O
OAM
OAM is an acronym for Operation Administration and Maintenance.
It is a protocol described in ITU-T Y.1731 used to implement carrier Ethernet functionality.
MEP functionality like
Optional TLVs.
A LLDP frame contains multiple
For some TLVs
These TLVs
information is not included in the LLDP frame.
P
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 implement 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
PoE is an acronym for Power Over Ethernet.
Power Over Ethernet is used to transmit electrical power, to remote devices over standard
Ethernet cable. It could for example be used for powering IP telephones, wireless LAN access
points and other equipment, where it would be difficult or expensive to connect the equipment
to main power supply.
Policer
A policer can limit the bandwidth of received frames. It is located in front of the ingress
queue.
POP3
POP3 is an acronym for Post Office Protocol version 3. It is a protocol for email clients to
retrieve email messages from a mail server.
CC and RDI
it is configurable if the switch shall include the
are known as optional TLVs. If an optional
UDP (datagrams) as transport layer.
is based on this
TLVs
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TLV in the LLDP frame.
TLVs is disabled the corresponding