IEEE 802.3bz-2016

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IEEE Standard for Ethernet Amendment 7: Media Access Control Parameters, Physical Layers, and Management Parameters for 2.5 Gb/s and 5 Gb/s Operation, Types 2.5GBASE-T and 5GBASE-T

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IEEE	2016

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Description

Amendment Standard – Superseded. Ethernet Media Access Control (MAC) parameters, Physical Layer specifications, and management objects for the transfer of Ethernet format frames at 2.5 Gb/s and 5 Gb/s over balanced twisted-pair transmission media used in structured cabling are defined in this amendment to IEEE Std 802.3-2015.

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PDF Pages	PDF Title
1	IEEE Std 802.3bz-2016 Front Cover
2	Title page
4	Important Notices and Disclaimers Concerning IEEE Standards Documents
7	Participants
10	Introduction
13	Contents
22	Important Notice
23	1. Introduction 1.1 Overview 1.1.3 Architectural perspectives 1.1.3.2 Compatibility interfaces 1.3 Normative references 1.4 Definitions
25	1.5 Abbreviations
26	4. Media Access Control 4.4 Specific implementations 4.4.2 MAC parameters
27	28. Physical Layer link signaling for Auto-Negotiation on twisted pair 28.3 State diagrams and variable definitions 28.3.1 State diagram variables
28	30. Management 30.3 Layer management for DTEs 30.3.2 PHY device managed object class 30.3.2.1 PHY device attributes 30.3.2.1.2 aPhyType 30.3.2.1.3 aPhyTypeList 30.5 Layer management for medium attachment units (MAUs) 30.5.1 MAU managed object class 30.5.1.1 MAU attributes 30.5.1.1.2 aMAUType 30.5.1.1.4 aMediaAvailable
29	30.5.1.1.24 aLDFastRetrainCount 30.5.1.1.25 aLPFastRetrainCount 30.6 Management for link Auto-Negotiation 30.6.1 Auto-Negotiation managed object class 30.6.1.1 Auto-Negotiation attributes 30.6.1.1.5 aAutoNegLocalTechnologyAbility
30	45. Management Data Input/Output (MDIO) Interface 45.1 Overview 45.2 MDIO Interface Registers 45.2.1 PMA/PMD registers 45.2.1.1 PMA/PMD control 1 register (Register 1.0)
31	45.2.1.1.3 Speed selection (1.0.13, 1.0.6, 1.0.5:2) 45.2.1.4 PMA/PMD speed ability (Register 1.4) 45.2.1.4.aa 5G capable (1.4.14) 45.2.1.4.ab 2.5G capable (1.4.13)
32	45.2.1.6 PMA/PMD control 2 register (Register 1.7) 45.2.1.7 PMA/PMD status 2 register (Register 1.8) 45.2.1.7.4 Transmit fault (1.8.11) 45.2.1.7.5 Receive fault (1.8.10)
33	45.2.1.8 PMD transmit disable register (Register 1.9) 45.2.1.10 PMA/PMD extended ability register (Register 1.11) 45.2.1.10.aaa 2.5G/5G extended abilities (1.11.14) 45.2.1.14c 2.5G/5G PMA/PMD extended ability register (Register 1.21) 45.2.1.14c.1 5GBASE-T ability (1.21.1)
34	45.2.1.14c.2 2.5GBASE-T ability (1.21.0) 45.2.1.62 MultiGBASE-T status (Register 1.129) 45.2.1.62.1 LP information valid (1.129.0) 45.2.1.64 MultiGBASE-T TX power backoff and PHY short reach setting (Register 1.131) 45.2.1.64.1 MultiGBASE-T TX power backoff settings (1.131.15:10)
35	45.2.1.65 MultiGBASE-T test mode register (Register 1.132) 45.2.1.65.1 Test mode control (1.132.15:13) 45.2.1.65.2 Transmitter test frequencies (1.132.12:10) 45.2.1.74 RX signal power channel A register (Register 1.141) 45.2.1.75 RX signal power channel B register (Register 1.142) 45.2.1.76 RX signal power channel C register (Register 1.143)
36	45.2.1.77 RX signal power channel D register (Register 1.144) 45.2.1.78 MultiGBASE-T skew delay register (Registers 1.145 and 1.146) 45.2.1.79 MultiGBASE-T fast retrain status and control register (Register 1.147) 45.2.1.79.1 LP fast retrain count (1.147.15:11) 45.2.1.79.2 LD fast retrain count (1.147.10:6)
37	45.2.1.79.5 Fast retrain signal type (1.147.2:1) 45.2.1.79.6 Fast retrain enable (1.147.0) 45.2.3 PCS registers 45.2.3.1 PCS control 1 register (Register 3.0) 45.2.3.1.2 Loopback (3.0.14)
38	45.2.3.4 PCS speed ability register (Register 3.4) 45.2.3.4.6 2.5G capable (3.4.6) 45.2.3.4.7 5G Capable (3.4.7)
39	45.2.3.6 PCS control 2 register (Register 3.7) 45.2.3.7 PCS status 2 register (Register 3.8) 45.2.3.7.1a 5GBASE-T capable (3.8.13) 45.2.3.7.1b 2.5GBASE-T capable (3.8.12)
40	45.2.3.9a EEE control and capability 2 register (Register 3.21) 45.2.3.9a.2 5GBASE-T EEE supported (3.21.1) 45.2.3.9a.3 2.5GBASE-T EEE supported (3.21.0) 45.2.3.13 BASE-R and MultiGBASE-T PCS status 1 register (Register 3.32) 45.2.3.13.1 BASE-R and MultiGBASE-T receive link status (3.32.12) 45.2.3.13.4 BASE-R and MultiGBASE-T PCS high BER (3.32.1)
41	45.2.3.13.5 BASE-R and MultiGBASE-T block lock (3.32.0) 45.2.3.14 BASE-R and MultiGBASE-T PCS status 2 register (Register 3.33) 45.2.3.14.3 BER (3.33.13:8) 45.2.3.14.4 Errored blocks (3.33.7:0)
42	45.2.7 Auto-Negotiation registers 45.2.7.10 MultiGBASE-T AN control 1 register (Register 7.32) 45.2.7.10.4ca 5GBASE-T capability (7.32.8) 45.2.7.10.4cb 2.5GBASE-T capability (7.32.7)
43	45.2.7.10.4cc 5GBASE-T Fast retrain ability (7.32.6) 45.2.7.10.4cd 2.5GBASE-T Fast retrain ability (7.32.5) 45.2.7.11 MultiGBASE-T AN status 1 register (Register 7.33) 45.2.7.11.1 MASTER-SLAVE configuration fault (7.33.15)
44	45.2.7.11.2 MASTER-SLAVE configuration resolution (7.33.14) 45.2.7.11.7ba Link partner 5GBASE-T capability (7.33.6) 45.2.7.11.7bb Link partner 2.5GBASE-T capability (7.33.5) 45.2.7.11.7bc 5GBASE-T Fast retrain ability (7.33.4) 45.2.7.11.7bd 2.5GBASE-T Fast retrain ability (7.33.3) 45.2.7.13 EEE advertisement 1 (Register 7.60)
45	45.2.7.14 EEE link partner ability 1 (Register 7.61)
46	45.2.7.14aa EEE advertisement 2 (Register 7.62) 45.2.7.14aa.1 5GBASE-T EEE (7.62.1) 45.2.7.14aa.2 2.5GBASE-T EEE (7.62.0) 45.2.7.14ab EEE link partner ability 2 (Register 7.63)
47	45.2.7.14a MultiGBASE-T AN control 2 (Register 7.64) 45.2.7.14a.a 2.5GBASE-T THP Bypass Request
48	45.2.7.14a.b 5GBASE-T THP Bypass Request 45.2.7.14b MultiGBASE-T AN status 2 (Register 7.65) 45.2.7.14b.a 2.5GBASE-T Link Partner THP Bypass Request 45.2.7.14b.b 5GBASE-T Link Partner THP Bypass Request
49	45.5 Protocol implementation conformance statement (PICS) proforma for Clause 45, Management Data Input/Output (MDIO) interface 45.5.3 PICS proforma tables for the Management Data Input Output (MDIO) interface 45.5.3.2 PMA/PMD MMD options 45.5.3.3 PMA/PMD management functions
50	45.5.3.9 Auto-Negotiation management functions
51	46. Reconciliation Sublayer (RS) and 10 Gigabit Media Independent Interface (XGMII) 46.1 Overview 46.1.1 Summary of major concepts 46.1.2 Application 46.1.3 Rate of operation
52	46.3.1.1 TX_CLK (10 Gb/s transmit clock) 46.3.2.1 RX_CLK (receive clock) 46.5 XGMII electrical characteristics
53	46.6 Protocol implementation conformance statement (PICS) proforma for Clause 46, Reconciliation Sublayer (RS) and 10 Gigabit Media Independent Interface (XGMII) 46.6.3 PICS proforma Tables for Reconciliation Sublayer and 10 Gigabit Media Independent Interface 46.6.3.1 General 46.6.3.6 XGMII signal functional specifications
54	78. Energy-Efficient Ethernet (EEE) 78.1 Overview 78.1.4 PHY types optionally supporting EEE 78.2 LPI mode timing parameters description 78.3 Capabilities Negotiation
55	78.5 Communication link access latency
56	125. Introduction to 2.5 Gb/s and 5 Gb/s networks 125.1 Overview 125.1.1 Scope 125.1.2 Relationship of 2.5 Gigabit and 5 Gigabit Ethernet to the ISO OSI reference model 125.1.3 Nomenclature
57	125.1.4 Physical Layer signaling systems
58	125.2 Summary of 2.5 Gigabit and 5 Gigabit Ethernet sublayers 125.2.1 Reconciliation Sublayer (RS) and Media Independent Interface 125.2.2 Physical Coding Sublayer (PCS) 125.2.3 Physical Medium Attachment sublayer (PMA)
59	125.2.4 Auto-Negotiation, type BASE-T 125.2.5 Management interface (MDIO/MDC) 125.2.6 Management 125.3 Delay Constraints
60	126. Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA) sublayer, and baseband medium, types 2.5GBASE-T and 5GBASE-T 126.1 Overview 126.1.1 Nomenclature 126.1.2 Relationship of 2.5GBASE-T and 5GBASE-T to other standards
61	126.1.3 Operation of 2.5GBASE-T and 5GBASE-T
65	126.1.3.1 Summary of Physical Coding Sublayer (PCS) 126.1.3.2 Summary of Physical Medium Attachment (PMA) sublayer
66	126.1.3.3 Summary of EEE capability
67	126.1.4 Signaling 126.1.5 Interfaces
68	126.1.6 Conventions in this clause 126.2 2.5GBASE-T and 5GBASE-T service primitives and interfaces 126.2.1 Technology Dependent Interface 126.2.1.1 PMA_LINK.request 126.2.1.1.1 Semantics of the primitive
69	126.2.1.1.2 When generated 126.2.1.1.3 Effect of receipt 126.2.1.2 PMA_LINK.indication 126.2.1.2.1 Semantics of the primitive 126.2.1.2.2 When generated 126.2.1.2.3 Effect of receipt 126.2.2 PMA service interface
71	126.2.2.1 PMA_TXMODE.indication 126.2.2.1.1 Semantics of the primitive 126.2.2.1.2 When generated 126.2.2.1.3 Effect of receipt 126.2.2.2 PMA_CONFIG.indication 126.2.2.2.1 Semantics of the primitive 126.2.2.2.2 When generated
72	126.2.2.2.3 Effect of receipt 126.2.2.3 PMA_UNITDATA.request 126.2.2.3.1 Semantics of the primitive 126.2.2.3.2 When generated 126.2.2.3.3 Effect of receipt 126.2.2.4 PMA_UNITDATA.indication
73	126.2.2.4.1 Semantics of the primitive 126.2.2.4.2 When generated 126.2.2.4.3 Effect of receipt 126.2.2.5 PMA_SCRSTATUS.request 126.2.2.5.1 Semantics of the primitive 126.2.2.5.2 When generated 126.2.2.5.3 Effect of receipt 126.2.2.6 PMA_PCSSTATUS.request 126.2.2.6.1 Semantics of the primitive
74	126.2.2.6.2 When generated 126.2.2.6.3 Effect of receipt 126.2.2.7 PMA_RXSTATUS.indication 126.2.2.7.1 Semantics of the primitive 126.2.2.7.2 When generated 126.2.2.7.3 Effect of receipt 126.2.2.8 PMA_REMRXSTATUS.request 126.2.2.8.1 Semantics of the primitive
75	126.2.2.8.2 When generated 126.2.2.8.3 Effect of receipt 126.2.2.9 PMA_ALERTDETECT.indication 126.2.2.9.1 Semantics of the primitive 126.2.2.9.2 When generated 126.2.2.9.3 Effect of receipt 126.2.2.10 PCS_RX_LPI_STATUS.request 126.2.2.10.1 Semantics of the primitive
76	126.2.2.10.2 When generated 126.2.2.10.3 Effect of receipt 126.2.2.11 PMA_PCSDATAMODE.indication 126.2.2.11.1 Semantics of the primitive 126.2.2.11.2 When generated 126.2.2.11.3 Effect of receipt 126.2.2.12 PMA_FR_ACTIVE.indication 126.2.2.12.1 Semantics of the primitive
77	126.2.2.12.2 When generated 126.2.2.12.3 Effect of receipt 126.3 Physical Coding Sublayer (PCS) 126.3.1 PCS service interface (XGMII) 126.3.2 PCS functions
78	126.3.2.1 PCS Reset function
79	126.3.2.2 PCS Transmit function
80	126.3.2.2.1 Use of blocks 126.3.2.2.2 65B-LDPC transmission code 126.3.2.2.3 Notation conventions 126.3.2.2.4 Transmission order 126.3.2.2.5 Block structure
83	126.3.2.2.6 Control codes 126.3.2.2.7 Ordered sets 126.3.2.2.8 Idle (/I/)
85	126.3.2.2.9 LPI (/LI/) 126.3.2.2.10 Start (/S/) 126.3.2.2.11 Terminate (/T/) 126.3.2.2.12 ordered set (/O/)
86	126.3.2.2.13 Error (/E/) 126.3.2.2.14 Transmit process 126.3.2.2.15 PCS Scrambler 126.3.2.2.16 LDPC framing and LDPC encoder
87	126.3.2.2.17 Substitution for zero-bit fill 126.3.2.2.18 PAM16 bit mapping
88	126.3.2.2.19 EEE capability
89	126.3.2.3 PCS Receive function
90	126.3.2.3.1 Frame and block synchronization
91	126.3.2.3.2 PCS descrambler 126.3.2.3.3 Invalid blocks
92	126.3.3 Test-pattern generators 126.3.4 PMA training side-stream scrambler polynomials
93	126.3.4.1 Generation of bits San, Sbn, Scn, Sdn 126.3.4.2 Generation of 4D symbols TAn, TBn, TCn, TDn
94	126.3.4.3 PMA training mode descrambler polynomials 126.3.5 LPI signaling
95	126.3.5.1 LPI Synchronization
96	126.3.5.2 Quiet period signaling 126.3.5.3 Refresh period signaling 126.3.6 Detailed functions and state diagrams 126.3.6.1 State diagram conventions
97	126.3.6.2 State diagram parameters 126.3.6.2.1 Constants 126.3.6.2.2 Variables
99	126.3.6.2.3 Timers
100	126.3.6.2.4 Functions
101	126.3.6.2.5 Counters
102	126.3.6.3 State diagrams 126.3.7 PCS management 126.3.7.1 Status
103	126.3.7.2 Counters
110	126.3.7.3 Loopback 126.4 Physical Medium Attachment (PMA) sublayer 126.4.1 PMA functional specifications
111	126.4.2 PMA functions 126.4.2.1 PMA Reset function 126.4.2.2 PMA Transmit function 126.4.2.2.1 Alert signal
113	126.4.2.2.2 Link failure signal 126.4.2.3 PMA transmit disable function 126.4.2.3.1 Global PMA transmit disable function 126.4.2.3.2 PMA pair by pair transmit disable function 126.4.2.3.3 PMA MDIO function mapping
114	126.4.2.4 PMA Receive function
115	126.4.2.5 PHY Control function
116	126.4.2.5.1 Infofield notation 126.4.2.5.2 Start of Frame Delimiter 126.4.2.5.3 Current transmitter settings
117	126.4.2.5.4 Next transmitter settings 126.4.2.5.5 Requested transmitter settings 126.4.2.5.6 Message field
118	126.4.2.5.7 SNR_margin
119	126.4.2.5.8 Transition counter 126.4.2.5.9 Coefficient exchange handshake 126.4.2.5.10 Ability fields 126.4.2.5.11 Reserved fields 126.4.2.5.12 Vendor-specific field
120	126.4.2.5.13 Coefficient field 126.4.2.5.14 CRC16 126.4.2.5.15 Startup sequence
123	126.4.2.5.16 Fast retrain function
124	126.4.2.6 Link Monitor function 126.4.2.7 Refresh Monitor function 126.4.2.8 Clock Recovery function 126.4.3 MDI 126.4.3.1 MDI signals transmitted by the PHY
126	126.4.3.2 Signals received at the MDI 126.4.4 Automatic MDI/MDI-X configuration
127	126.4.5 State variables 126.4.5.1 State diagram variables
130	126.4.5.2 Timers
131	126.4.5.3 Functions 126.4.5.4 Counters
132	126.4.6 State diagrams 126.4.6.1 PHY Control state diagram
133	126.4.6.2 Transition counter state diagrams
135	126.4.6.3 Link Monitor state diagram
136	126.4.6.4 EEE Refresh monitor state diagram
137	126.4.6.5 Fast retrain state diagram 126.5 PMA electrical specifications 126.5.1 Isolation requirement 126.5.2 Test modes
140	126.5.2.1 Test fixtures
141	126.5.3 Transmitter electrical specifications 126.5.3.1 Maximum output droop
142	126.5.3.2 Transmitter nonlinear distortion 126.5.3.3 Transmitter timing jitter
143	126.5.3.4 Transmitter power spectral density (PSD) and power level
144	126.5.3.5 Transmit clock frequency 126.5.4 Receiver electrical specifications 126.5.4.1 Receiver differential input signals 126.5.4.2 Receiver frequency tolerance
145	126.5.4.3 Rejection of External EM Fields 126.5.4.4 Alien crosstalk noise rejection
146	126.6 Management interfaces 126.6.1 Support for Auto-Negotiation 126.6.1.1 2.5GBASE-T and 5GBASE-T use of registers during Auto-Negotiation
147	126.6.1.2 2.5GBASE-T and 5GBASE-T Auto-Negotiation page use
149	126.6.1.3 Sending Next Pages 126.6.2 MASTER-SLAVE configuration resolution
151	126.7 Link segment characteristics
152	126.7.1 Cabling system characteristics 126.7.2 Link segment transmission parameters
153	126.7.2.1 Insertion loss 126.7.2.2 Differential characteristic impedance 126.7.2.3 Return loss
154	126.7.2.4 Coupling parameters between duplex channels comprising one link segment 126.7.2.4.1 Differential near-end crosstalk 126.7.2.4.2 Multiple disturber near-end crosstalk (MDNEXT) loss
155	126.7.2.4.3 Multiple disturber power sum near-end crosstalk (PSNEXT) loss 126.7.2.4.4 Attenuation to crosstalk ratio, far-end (ACRF)
156	126.7.2.4.5 Multiple disturber attenuation to crosstalk ratio, far-end (MDACRF)
157	126.7.2.4.6 Multiple disturber power sum attenuation to crosstalk ratio, far-end (PS ACRF) 126.7.2.5 Maximum link delay 126.7.2.6 Link delay skew 126.7.3 Coupling parameters between link segments 126.7.3.1 Alien crosstalk limited signal-to-noise ratio criteria
163	126.8 MDI specification 126.8.1 MDI connectors
164	126.8.2 MDI electrical specifications 126.8.2.1 MDI FEXT 126.8.2.2 MDI return loss 126.8.2.3 MDI impedance balance
165	126.8.2.4 MDI fault tolerance 126.9 Environmental specifications 126.9.1 General safety
166	126.9.2 Network safety 126.9.3 Installation and maintenance guidelines 126.9.4 Telephone voltages 126.9.5 Electromagnetic compatibility
167	126.9.6 Temperature and humidity 126.10 PHY labeling 126.11 Delay constraints
168	126.12 Protocol implementation conformance statement (PICS) proforma for Clause 126—Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA) sublayer, and baseband medium, types 2.5GBASE-T and 5GBASE-T 126.12.1 Identification 126.12.1.1 Implementation identification 126.12.1.2 Protocol summary
169	126.12.2 Major capabilities/options 126.12.3 Physical Coding Sublayer (PCS) 126.12.3.1 PCS Transmit functions
171	126.12.3.2 PCS Receive functions 126.12.3.3 Other PCS functions 126.12.4 Physical Medium Attachment (PMA)
174	126.12.5 PMA Electrical Specifications
176	126.12.6 PMA Management Interface
177	126.12.7 Characteristics of the link segment 126.12.8 MDI requirements
178	126.12.9 General safety and environmental requirements 126.12.10 Timing requirements
179	Annex 28B IEEE 802.3 Selector Base Page definition 28B.3 Priority resolution
180	Annex 28C Next Page Message Code field definitions 28C.11 Message code 9—MultiGBASE-T and 1000BASE-T technology message code
181	Annex 28D Description of extensions to Clause 28 and associated annexes 28D.9 Extensions required for Clause 126 (2.5G/5GBASE-T)
182	Annex 31B MAC Control PAUSE operation 31B.3 Detailed specification of PAUSE operation 31B.3.7 Timing considerations for PAUSE operation
183	31B.4 Protocol implementation conformance statement (PICS) proforma for MAC Control PAUSE operation 31B.4.3 Major capabilities/options
184	31B.4.6 PAUSE command MAC timing considerations
185	Back Cover

Additional information

Standard Title	IEEE Standard for Ethernet Amendment 7: Media Access Control Parameters, Physical Layers, and Management Parameters for 2.5 Gb/s and 5 Gb/s Operation, Types 2.5GBASE-T and 5GBASE-T
Published Code	IEEE
Publication Date	2016

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