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首页100Gbps Ethernet Amendment X: P802.3bj/D1.3 Draft Standard for Physical Layer & Management Parameters
IEEE P802.3bj/D1.3标准是IEEE制定的针对以太网(Ethernet)的第X个修正案,该标准专注于100吉比特每秒(100 Gb/s)数据传输在背板(backplane)和铜缆(copper cables)环境下的物理层(Physical Layer)规格与管理参数。这个草案由IEEE计算机协会的局域网/城域网(LAN/MAN)标准化委员会编制,旨在扩展和增强现有的IEEE Std 802.3-2012标准。
主要目标是提供高速数据传输能力,支持100 Gb/s的性能,这在工业和数据中心环境中尤其重要,以满足日益增长的数据流量需求。该标准不仅关注基本的物理层设计,还引入了可选的能源效率(Energy Efficient Ethernet, EEE)技术,以优化40 Gb/s和100 Gb/s运行时的能效。EET对于现代数据中心的能源管理和可持续性非常重要,它通过降低功耗来实现绿色通信。
草案规定了一系列详细的信号处理、编码、同步和连接机制,确保数据在不同类型的介质上稳定且高效的传输。此外,还包括了对错误检测和纠正机制、帧格式、物理层标识符(PHY ID)、以及可能的物理层管理功能的详细描述。管理参数的标准化有助于设备间的互操作性和网络的可管理性。
IEEE P802.3bj/D1.3的目标受众包括网络设备制造商、系统集成商、数据中心运营商和网络工程师,他们需要了解如何设计、部署和维护能够支持100 Gb/s速率的硬件和软件解决方案。该标准的审查任务组(Task Force)负责定期评估和更新草案,以适应技术的发展和市场需求的变化。
值得注意的是,此草案的有效期为发布日期后的六个月,或者当后续版本发布时,以较早者为准。版权属于美国电气和电子工程师学会(IEEE),强调了标准化工作的重要性以及对知识产权的尊重。
IEEE P802.3bj/D1.3标准是一个关键的里程碑,它为100 Gb/s的以太网技术提供了标准化的物理层规范,推动了数据中心和高性能网络环境的演进。随着其正式发布,它将促进全球范围内的技术进步和网络基础设施的升级。
IEEE P802.3bj/D1.3 Draft Amendment to IEEE Std 802.3-2012
17th December 2012
16 Copyright © 2012 IEEE. All rights reserved.
This is an unapproved IEEE Standards draft, subject to change.
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93.7.2 PMD Transmit function...................................................................................... 213
93.7.3 PMD Receive function........................................................................................ 214
93.7.4 Global PMD signal detect function .................................................................... 214
93.7.5 PMD lane-by-lane signal detect function ........................................................... 214
93.7.6 Global PMD transmit disable function............................................................... 214
93.7.7 PMD lane-by-lane transmit disable function...................................................... 215
93.7.8 Loopback mode................................................................................................... 215
93.7.9 PMD fault function............................................................................................. 215
93.7.10 PMD transmit fault function............................................................................... 215
93.7.11 PMD receive fault function................................................................................. 215
93.7.12 PMD control function......................................................................................... 216
93.8 100GBASE-KR4 electrical characteristics......................................................................... 216
93.8.1 Transmitter characteristics.................................................................................. 216
93.8.1.1 Transmitter test fixture.................................................................... 216
93.8.1.2 Signaling rate and range ................................................................. 218
93.8.1.3 Signal levels.................................................................................... 218
93.8.1.4 Transmitter output return loss......................................................... 219
93.8.1.5 Transition time................................................................................ 220
93.8.1.6 Transmitter output waveform ......................................................... 220
93.8.1.7 Transmitter far-end output noise..................................................... 223
93.8.1.8 Transmitter output jitter.................................................................. 223
93.8.2 Receiver characteristics ...................................................................................... 223
93.8.2.1 Receiver test fixture........................................................................ 224
93.8.2.2 Receiver input return loss ............................................................... 225
93.8.2.3 Receiver interference tolerance ...................................................... 226
93.9 Channel characteristics ....................................................................................................... 227
93.9.1 Channel operating margin................................................................................... 227
93.9.2 Insertion loss....................................................................................................... 227
93.9.3 Return loss .......................................................................................................... 229
93.9.4 AC-coupling........................................................................................................ 230
93.10 Environmental specifications.............................................................................................. 230
93.10.1 General safety ..................................................................................................... 230
93.10.2 Network safety.................................................................................................... 230
93.10.3 Installation and maintenance guidelines............................................................. 230
93.10.4 Electromagnetic compatibility............................................................................ 230
93.10.5 Temperature and humidity.................................................................................. 230
93.11 Protocol implementation conformance statement (PICS) proforma for Clause 93, Physical
Medium Dependent (PMD) sublayer and baseband medium, type 100GBASE-KR4....... 231
93.11.1 Introduction......................................................................................................... 231
93.11.2 Identification....................................................................................................... 231
93.11.2.1 Implementation identification......................................................... 231
93.11.2.2 Protocol summary........................................................................... 231
93.11.3 Major capabilities/options................................................................................... 232
93.11.4 PICS proforma tables for Physical Medium Dependent (PMD) sublayer and
baseband medium, type 100GBASE-KR4.......................................................... 232
93.11.4.1 Functional specifications ................................................................ 233
93.11.4.2 Transmitter characteristics.............................................................. 235
93.11.4.3 Receiver characteristics .................................................................. 237
93.11.4.4 Channel characteristics ................................................................... 237
93.11.4.5 Environmental specifications.......................................................... 237
94. Physical Medium Attachment (PMA) sublayer, Physical Medium Dependent (PMD) sublayer, and
baseband medium, type 100GBASE-KP4........................................................................................... 238
Draft Amendment to IEEE Std 802.3-2012 IEEE P802.3bj/D1.3
17th December 2012
Copyright © 2012 IEEE. All rights reserved. 17
This is an unapproved IEEE Standards draft, subject to change.
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94.1 Overview............................................................................................................................. 238
94.2 Physical Medium Attachment (PMA) Sublayer ................................................................. 240
94.2.1 PMA Service Interface........................................................................................ 240
94.2.1.1 PMA:IS_UNITDATA_i.request..................................................... 240
94.2.1.2 PMA:IS_UNITDATA_i.indication ................................................ 241
94.2.1.3 PMA:IS_SIGNAL.indication ......................................................... 241
94.2.1.4 Effect of receipt .............................................................................. 242
94.2.2 PMA Transmit Functional Specifications........................................................... 242
94.2.2.1 FEC Interface.................................................................................. 242
94.2.2.2 Overhead Frame.............................................................................. 243
94.2.2.3 Overhead......................................................................................... 243
94.2.2.4 Termination Blocks......................................................................... 243
94.2.2.5 Gray Mapping................................................................................. 244
94.2.2.6 Precoding ........................................................................................ 245
94.2.2.7 PAM4 encoding.............................................................................. 245
94.2.2.8 PMD Interface................................................................................. 245
94.2.3 PMA Transmit EEE Operation........................................................................... 246
94.2.4 PMA Receive Functional Specifications............................................................ 246
94.2.4.1 Overhead......................................................................................... 246
94.2.5 PMA Receive EEE Operation............................................................................. 247
94.2.6 Skew constraints ................................................................................................. 247
94.2.7 Delay constraints................................................................................................. 247
94.2.8 Link status........................................................................................................... 247
94.2.9 PMA local loopback mode ................................................................................. 247
94.2.10 PMA remote loopback mode (optional) ............................................................. 248
94.2.11 PMA test patterns................................................................................................ 248
94.2.11.1 JP03A test pattern........................................................................... 248
94.2.11.2 JP03B test pattern ........................................................................... 248
94.2.11.3 Quaternary PRBS13 test pattern..................................................... 249
94.2.12 PMA MDIO function mapping........................................................................... 249
94.3 Physical Medium Dependent (PMD) Sublayer .................................................................. 250
94.3.1 Physical Medium Dependent (PMD) service interface ...................................... 250
94.3.1.1 PMD:IS_UNITDATA_i.request..................................................... 250
94.3.1.2 PMD:IS_UNITDATA_i.indication ................................................ 251
94.3.1.3 PMD:IS_SIGNAL.indication ......................................................... 251
94.3.2 PCS requirements for Auto-Negotiation (AN) service interface........................ 252
94.3.3 Delay constraints................................................................................................. 252
94.3.4 Skew constraints ................................................................................................. 252
94.3.5 PMD MDIO function mapping........................................................................... 252
94.3.6 PMD functional specifications............................................................................ 254
94.3.6.1 Link block diagram......................................................................... 254
94.3.6.2 PMD Transmit function.................................................................. 254
94.3.6.3 PMD Receive function.................................................................... 254
94.3.6.4 Global PMD signal detect function ................................................ 254
94.3.6.5 PMD lane-by-lane signal detect function ....................................... 255
94.3.6.6 Global PMD transmit disable function........................................... 255
94.3.6.7 PMD lane-by-lane transmit disable function.................................. 255
94.3.6.8 Loopback mode............................................................................... 256
94.3.7 PMD fault function............................................................................................. 256
94.3.8 PMD transmit fault function............................................................................... 256
94.3.9 PMD receive fault function................................................................................. 256
94.3.10 PMD control function......................................................................................... 256
94.3.10.1 Overview......................................................................................... 256
94.3.10.2 Training frame structure ................................................................. 257
IEEE P802.3bj/D1.3 Draft Amendment to IEEE Std 802.3-2012
17th December 2012
18 Copyright © 2012 IEEE. All rights reserved.
This is an unapproved IEEE Standards draft, subject to change.
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94.3.10.3 Training Frame Words.................................................................... 257
94.3.10.4 Frame marker.................................................................................. 257
94.3.10.5 Control Channel Encoding.............................................................. 257
94.3.10.6 Coefficient update field .................................................................. 258
94.3.10.7 Status report field............................................................................ 260
94.3.10.8 Training Pattern .............................................................................. 261
94.3.10.9 Transition from training to data...................................................... 263
94.3.10.10 Frame lock state diagram................................................................ 263
94.3.10.11 Training state diagram .................................................................... 264
94.3.10.12 Coefficient update state diagram .................................................... 264
94.3.11 PMD LPI function .............................................................................................. 264
94.3.11.1 Alert Signal..................................................................................... 264
94.3.12 PMD Transmitter electrical characteristics......................................................... 267
94.3.12.1 Test Fixture..................................................................................... 267
94.3.12.2 Signaling rate and range ................................................................. 269
94.3.12.3 Signal levels.................................................................................... 269
94.3.12.4 Transmitter output return loss......................................................... 270
94.3.12.5 Transition time................................................................................ 270
94.3.12.6 Transmitter output waveform ......................................................... 271
94.3.12.7 Transmitter far-end output noise..................................................... 273
94.3.12.8 Transmitter output jitter.................................................................. 274
94.3.12.9 Transmitter output noise and distortion.......................................... 275
94.3.13 PMD Receiver electrical characteristics............................................................. 275
94.3.13.1 Test Fixture..................................................................................... 276
94.3.13.2 Receiver input return loss ............................................................... 276
94.3.13.3 Receiver interference tolerance ...................................................... 276
94.3.13.4 Receiver interference tolerance test method................................... 277
94.4 Channel characteristics ....................................................................................................... 279
94.4.1 Channel operating margin................................................................................... 279
94.4.2 Channel insertion loss......................................................................................... 279
94.4.3 Channel Return Loss........................................................................................... 281
94.4.4 Channel AC-coupling ......................................................................................... 282
94.5 Environmental specifications.............................................................................................. 282
94.5.1 General safety ..................................................................................................... 282
94.5.2 Network safety.................................................................................................... 282
94.5.3 Installation and maintenance guidelines............................................................. 282
94.5.4 Electromagnetic compatibility............................................................................ 283
94.5.5 Temperature and humidity.................................................................................. 283
94.6 Protocol implementation conformance statement (PICS) proforma for Clause 94, Physical
Medium Attachment (PMA) and Physical Medium Dependent (PMD) sublayer and baseband
medium, type 100GBASE-KP4..........................................................................................
284
94.6.1 Introduction......................................................................................................... 284
94.6.2 Identification....................................................................................................... 284
94.6.2.1 Implementation identification......................................................... 284
94.6.2.2 Protocol summary........................................................................... 284
94.6.3 Major capabilities/options................................................................................... 285
94.6.4 PICS proforma tables for Physical Medium Dependent (PMD) sublayer and
baseband medium, type 100GBASE-KP4.......................................................... 285
94.6.4.1 PMA functional specifications........................................................ 285
94.6.4.2 PMD functional specifications........................................................ 287
94.6.4.3 PMD transmitter characteristics...................................................... 291
94.6.4.4 PMD receiver characteristics.......................................................... 293
94.6.4.5 Channel characteristics ................................................................... 293
94.6.4.6 Environment specifications............................................................. 293
Draft Amendment to IEEE Std 802.3-2012 IEEE P802.3bj/D1.3
17th December 2012
Copyright © 2012 IEEE. All rights reserved. 19
This is an unapproved IEEE Standards draft, subject to change.
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Annex 83A (normative) 40 Gb/s Attachment Unit Interface (XLAUI) and 100 Gb/s Attachment Unit Inter-
face (CAUI) ................................................................................................................................................. 294
83A.3.2a EEE operation..................................................................................................... 294
83A.3.3.6 Global transmit disable function..................................................... 294
83A.3.4.7 Global energy detect function......................................................... 294
83A.7 Protocol implementation conformance statement (PICS) proforma for Annex 83A, 40 Gb/s
Attachment Unit Interface (XLAUI) and 100 Gb/s Attachment Unit Interface (CAUI).... 296
83A.7.3 Major Capabilities/Options................................................................................. 296
83A.7.4 XLAUI/CAUI transmitter requirements............................................................. 296
83A.7.5 XLAUI/CAUI receiver requirements ................................................................. 296
Annex 83C (informative) PMA sublayer partitioning examples................................................................. 297
83C.1 Partitioning examples with FEC......................................................................................... 297
83C.1.1 FEC implemented with PCS............................................................................... 297
83C.1.2 FEC implemented with PMD ............................................................................. 298
83C.1aPartitioning examples with RS FEC ................................................................................... 299
83C.1a.1 Single PMA sublayer with RS FEC.................................................................... 299
83C.1a.2 Single CAUI with RS FEC................................................................................. 299
Annex 91A (informative) RS-FEC codeword examples............................................................................. 300
91A.1 Input to the 64B/66B to 256B/257B transcoder ................................................................. 300
91A.2 Output of the RS(528,514) encoder.................................................................................... 301
91A.3 Output of the RS(544,514) encoder.................................................................................... 301
91A.4 Reed-Solomon encoder model............................................................................................ 302
91A.4.1 Global variable declarations for RS(528,514).................................................... 302
91A.4.2 Global variable declarations for RS(544,514).................................................... 303
91A.4.3 Other global variable declarations...................................................................... 303
91A.4.4 GF(2
10
) multiplier function ................................................................................ 303
91A.4.5 Reed-Solomon encoder function ........................................................................ 303
91A.4.6 Main function...................................................................................................... 304
Annex 92A (informative) 100GBASE-CR4 TP0 and TP5 test point parameters and channel characteristics .
305
92A.1 Overview............................................................................................................................. 305
92A.2 Transmitter characteristics at TP0 ...................................................................................... 305
92A.3 Receiver characteristics at TP5........................................................................................... 305
92A.4 Transmitter and receiver differential printed circuit board trace loss................................. 305
92A.5 Channel insertion loss......................................................................................................... 306
92A.6 Channel return loss ............................................................................................................. 308
92A.7 Channel insertion loss deviation (ILD)............................................................................... 308
92A.8 Channel operating margin (COM)...................................................................................... 309
Annex 93A (normative) Characteristics of electrical backplanes................................................................ 310
93A.1 Channel operating margin................................................................................................... 310
93A.1.1 Measurement of the channel............................................................................... 310
93A.1.2 Path terminations ................................................................................................ 311
93A.1.3 Filters .................................................................................................................. 312
93A.1.3.1 Transmitter filter............................................................................. 313
93A.1.3.2 Receiver noise filter........................................................................ 313
IEEE P802.3bj/D1.3 Draft Amendment to IEEE Std 802.3-2012
17th December 2012
20 Copyright © 2012 IEEE. All rights reserved.
This is an unapproved IEEE Standards draft, subject to change.
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93A.1.3.3 Transmitter equalizer ...................................................................... 313
93A.1.3.4 Receiver equalizer........................................................................... 313
93A.1.4 Single bit response.............................................................................................. 313
93A.1.5 Signal amplitude ................................................................................................. 314
93A.1.6 Interference and noise amplitude........................................................................ 315
93A.1.6.1 Interference amplitude distribution................................................. 315
93A.1.6.2 Noise amplitude distribution........................................................... 315
93A.1.6.3 Combination of interference and noise distributions...................... 316
93A.2 Fitted insertion loss............................................................................................................. 317
Annex 93B (informative) Electrical backplane reference model ................................................................ 318
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