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Q
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.
Querier Election
Querier election is used to dedicate the Querier, the only one router sends Query messages, on a particular
link. Querier election rule defines that IGMP Querier or MLD Querier with the lowest IPv4/IPv6 address
wins the election.
404 - Glossary
RocketLinx MP1204-XT User Guide: 2000644 Rev. A
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