CQF
E44307
CQF (Cyclic Queuing and Forwarding) is a time-sensitive networking mechanism defined in IEEE 802.1Qch that provides deterministic, low-latency packet forwarding using cyclic transmission queues.
Aliases (1)
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
time-sensitive networking mechanism
→
|
| abbreviation |
CQF
→
|
| appliesTo |
Time-Sensitive Networking bridges
→
bridged Ethernet networks → |
| belongsToDomain |
Time-Sensitive Networking
→
computer networking → |
| benefit |
improved determinism compared to best-effort Ethernet
→
reduced queuing delay variability → |
| category |
queuing and forwarding mechanism
→
traffic shaping mechanism → |
| compatibleWith |
IEEE 802.1AS time synchronization
→
|
| definedInStandard |
IEEE 802.1Qch
→
|
| deploymentScenario |
automotive Ethernet networks
→
industrial automation networks → professional audio-video networks → |
| ensures |
bounded end-to-end delay
→
predictable forwarding behavior → zero congestion loss under configured conditions → |
| fullName |
Cyclic Queuing and Forwarding
→
|
| introducedBy |
IEEE 802.1 Working Group
→
|
| layer |
Data Link Layer
→
|
| operatesOn |
Ethernet frames
→
egress queues → |
| OSIModelLayer |
Layer 2
→
|
| partOfStandardFamily |
IEEE 802.1Q
→
|
| primaryGoal |
bounded latency
→
deterministic packet forwarding → low-latency packet forwarding → |
| queueOperation |
cyclic open-and-close of transmission queues
→
|
| relatedTo |
IEEE 802.1Qav
→
IEEE 802.1Qbv → IEEE 802.1Qcr → |
| requires |
time synchronization between network nodes
→
|
| requiresConfiguration |
cycle time
→
queue gate control parameters → |
| schedulingModel |
time-slot based scheduling
→
|
| standardStatus |
IEEE standard amendment to 802.1Q
→
|
| supports |
bounded jitter for time-sensitive flows
→
deterministic latency for periodic traffic → |
| trafficType |
audio-video streams
→
industrial control traffic → real-time traffic → time-sensitive traffic → |
| usesMechanism |
cyclic transmission queues
→
time-based scheduling → time-synchronized operation → |
Referenced by (2)
| Subject (surface form when different) | Predicate |
|---|---|
|
Cyclic Queuing and Forwarding
→
IEEE 802.1Qch → |
abbreviation |