Interlogix NS3702-24P-4S User Manual - Manual (Page 398)

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Q
QCE
QCE is an acronym for QoS Control Entry. 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 "High" for individual application.
QCL
QCL is an acronym for QoS Control List. 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 Quality of Service. It is a method to guarantee a bandwidth relationship between individual
applications or protocols.
A communications network transports a multitude of applications and data, including high-quality video and delay-sensitive
data such as real-time voice. Networks must provide secure, predictable, measurable, and sometimes guaranteed
services.
Achieving the required QoS becomes the secret to a successful end-to-end business solution. Therefore, QoS is the set of
techniques to manage network resources.
QoS class
Every incoming frame is classified to a QoS class, which is used throughout the device for providing queuing, scheduling
and congestion control guarantees to the frame according to what was configured for that specific QoS class. There is a
one to one mapping between QoS class, queue and priority. A QoS class of 0 (zero) has the lowest priority.