IEEE 802.3by
E507675
IEEE 802.3by is an Ethernet standard that defines 25 Gigabit per second (25GbE) operation over fiber optic and twinaxial copper cabling for high-speed network interconnects.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | Ethernet standard ⓘ |
| belongsToFamily | IEEE 802 standards NERFINISHED ⓘ |
| defines | 25 Gigabit Ethernet NERFINISHED ⓘ |
| definesAbbreviation | 25GbE ⓘ |
| definesApplication |
data center networking
ⓘ
high-speed network interconnects ⓘ server-to-switch interconnects ⓘ switch-to-switch interconnects ⓘ |
| definesCompatibility | Ethernet MAC layer ⓘ |
| definesConnectorUsage | SFP28 form factor modules ⓘ |
| definesDataRate | 25 Gbit/s ⓘ |
| definesForwardErrorCorrection | optional FEC mechanisms ⓘ |
| definesInterfaceType |
copper Ethernet interface
ⓘ
optical Ethernet interface ⓘ |
| definesLaneConfiguration | single-lane 25 Gbit/s operation ⓘ |
| definesLayer |
physical layer (PHY)
ⓘ
reconciliation sublayer aspects ⓘ |
| definesMedium |
multimode fiber
ⓘ
twinaxial copper ⓘ |
| definesOperationOver |
direct attach copper (DAC) cables
ⓘ
fiber optic cabling ⓘ twinaxial copper cabling ⓘ |
| definesPhysicalLayer |
25GBASE-CR
NERFINISHED
ⓘ
25GBASE-CR-S ⓘ 25GBASE-R ⓘ 25GBASE-SR ⓘ 25GBASE-SR-S ⓘ 25GBASE-SR2 ⓘ |
| definesReach |
short-reach copper links
ⓘ
short-reach fiber links ⓘ |
| definesSignalingRate | 25.78125 Gbaud ⓘ |
| goal |
cost-effective 25 Gbit/s Ethernet
ⓘ
efficient server attachment speed ⓘ higher port density compared to 40GbE ⓘ |
| partOf | IEEE 802.3 NERFINISHED ⓘ |
| relatedTo |
IEEE 802.3ba
NERFINISHED
ⓘ
IEEE 802.3bj NERFINISHED ⓘ IEEE 802.3bm NERFINISHED ⓘ IEEE 802.3bq NERFINISHED ⓘ |
| standardizedBy |
IEEE 802.3 Working Group
NERFINISHED
ⓘ
Institute of Electrical and Electronics Engineers NERFINISHED ⓘ |
| supportsUseCase |
cloud data center fabrics
ⓘ
high-density switch ports ⓘ leaf-spine architectures ⓘ top-of-rack switching ⓘ |
| usesEncoding | 64b/66b line coding ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.