IEEE 802.1Qbu frame preemption standard
E2825
The IEEE 802.1Qbu frame preemption standard defines mechanisms for interrupting and resuming Ethernet frame transmission to reduce latency for time-critical traffic in time-sensitive networking.
Aliases (3)
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
Ethernet networking standard
→
IEEE standard → frame preemption standard → |
| appliesTo |
bridged Ethernet networks
→
full-duplex Ethernet links → |
| category |
Time-Sensitive Networking (TSN)
→
|
| concernsLayer |
data link layer
→
|
| concernsTechnology |
Ethernet
→
|
| defines |
mechanisms for Ethernet frame preemption
→
mechanisms for interrupting Ethernet frame transmission → mechanisms for resuming Ethernet frame transmission → |
| dependsOn |
IEEE 802.3br for MAC-level preemption support
→
|
| developedBy |
IEEE 802.1 Working Group
→
|
| extends |
IEEE 802.1Q bridge operation
→
|
| focusesOn |
latency reduction for time-sensitive traffic
→
quality of service in bridged networks → |
| fullName |
IEEE 802.1Qbu Frame Preemption
→
|
| goal |
to improve determinism in Ethernet networks
→
to minimize blocking delay for high-priority frames → |
| mechanism |
preemption of lower-priority frames by higher-priority frames
→
resumption of preempted frames after express traffic transmission → |
| organization |
Institute of Electrical and Electronics Engineers (IEEE)
→
|
| partOf |
IEEE 802.1 family of standards
→
Time-Sensitive Networking (TSN) standards → |
| purpose |
to reduce latency for time-critical traffic
→
to support time-sensitive networking applications → |
| relatedTo |
IEEE 802.3br Interspersing Express Traffic
→
|
| requires |
support in both transmitting and receiving MACs for preemption
→
|
| standardizes |
control of preemptable and express queues
→
coordination of frame preemption between bridges and end stations → management of preemption parameters → |
| supports |
coexistence of time-critical and best-effort traffic
→
low-latency transmission of critical traffic → |
| usedIn |
automotive Ethernet networks
→
industrial automation networks → other time-sensitive networking deployments → professional audio-video networks → |
| usesConcept |
express traffic
→
frame fragmentation for preemption → frame reassembly after preemption → preemptable traffic → |
Referenced by (6)
| Subject (surface form when different) | Predicate |
|---|---|
|
IEEE 802.1AS
("IEEE 802.1Qbu")
→
IEEE 802.1Qbu ("IEEE 802.3br Interspersing Express Traffic") → IEEE 802.1Qdw TSN for edge computing standard ("IEEE 802.1Qbu Frame Preemption") → |
relatedTo |
|
IEEE Standards Association
→
|
develops |
|
IEEE 802.1 TSN Task Group
("IEEE 802.1Qbu Frame Preemption")
→
|
developsStandard |
|
IEEE 802.1Qbu
("IEEE 802.1Qbu Frame Preemption")
→
|
fullName |