E is an acronym for
P
Po
ower
O
ver
E
thernet.
vices over
s,
cess points and other equipment, where it would be difficult or
expensive to connect the equipment to main power supply.
Power Over Ethernet is used to transmit electrical power, to remote de
standard Ethernet cable. It could for example be used for powering IP telephone
wireless LAN ac
Policer
A policer can limit the bandwidth of received frames. It is located in front of the
ingress queue.
Private VLAN
In a private VLAN, PVLANs provide layer 2 isolation between ports within the
same broadcast domain. Isolated ports configured as part of PVLAN cannot
unicate with each other. Member ports of a PVLAN can communicate with
comm
each other.
PTP
PTP is an acronym for
P
recision
T
ime
P
rotocol, a network protocol for
synchronizing the clocks of computer systems.
Q
QCE
QCE is an acronym for
Q
oS
C
ontrol
E
ntry. It describes QoS class associated
with a particular QCE ID.
There are six QCE frame types: Ethernet
Type, VLAN, UDP/TCP Port, DSCP, TOS, and Tag Priority. Frames can be
classified by one of 4 different QoS classes: "Low", "Normal", "Medium", and
for individual application.
"High"
QCL
QCL is an acronym for
Q
oS
C
ontrol
L
ist. It is the list table of QCEs,
containing QoS control entries that classify to a specific QoS class on specific
traffic objects.
Each accessible traffic object contains an identifier to its QCL. The privileges
determine specific traffic object to specific QoS class.
QL
QL In SyncE this is the Quality Level of a given clock source. This is received on
a port in a SSM indicating the quality of the clock received in the port.
QoS
QoS is an acronym for
Q
uality
o
f
S
ervice. It is a method to guarantee a
dth relationship between individual applications or protocols.
bandwi
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