IEEE 802.3-2018 Section 2: 100Mb/s Ethernet Management & Power Over Twisted Pair

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802.3-2018标准的Section Two涵盖了第21到第33条款以及附录22A至33E，这部分内容专门针对100Mb/s基带网络管理属性、速度操作规范及电力通过双绞线（Twisted Pair）提供支持，适用于多速运行。本部分详细阐述了100 Mb/s操作的通用信息，以及大部分物理层规格。首先，第21节介绍了100Mb/s baseband网络的基础，被称为100BASE-T3，这部分包括了对Reconciliation Sublayer (RS) 和 Media Independent Interface (MII) 的概述。RS负责信号的协议独立处理，而MII则确保了物理层接口的媒体无关性，使得不同类型的传输介质可以互换使用。物理层信号系统在这里也进行了详述，包括不同的传输模式和信号调制方式，确保数据的可靠传输。重复器（Repeater）在这一节中占据了重要地位，它作为网络中的信号放大和转发设备，对于100 Mb/s网络的扩展和信号覆盖至关重要。Auto-Negotiation功能被提及，这是为了自动检测并适应连接两端设备的速率和双工模式，实现即插即用的便利性。此外，管理属性是Section Two的核心组成部分，它涵盖了网络的监控、配置和维护功能，如数据链路层的管理和控制帧，以及与外部管理系统交互的接口。第21.5节中，作者提供了状态图示例，通过状态块的动作、变量、转换和操作符来描绘协议执行过程，有助于理解和实现正确的行为规范。 Protocol Implementation Conformance Statement (PICS) proforma是另一关键内容，用于确保产品的兼容性和互操作性。这一部分提供了一个模板，指导制造商填写关于其产品如何符合标准的声明，包括缩写解释、填写指南以及额外信息。用户授权和限制也被明确指出，仅限大连理工大学在特定日期下载，且可能存在使用权限的限制。 802.3-2018 Section Two是关于100 Mb/s Ethernet技术的详细规范，涉及了从物理层到网络管理的多个层面，为设计者、开发者和维护人员提供了全面的技术依据。理解并遵循这些规定，对于构建高质量的高速网络基础设施至关重要。

28.5.3 Major capabilities/options................................................................................................. 318

28.5.4 PICS proforma tables for Physical Layer link signaling for Auto-Negotiation on

twisted pair........................................................................................................................ 318

28.5.4.1 Scope ...................................................................................................... 318

28.5.4.2 Auto-Negotiation functions .................................................................................... 319

28.5.4.3 Transmit function requirements.............................................................................. 319

28.5.4.4 Receive function requirements ............................................................................... 321

28.5.4.5 Arbitration functions............................................................................................... 322

28.5.4.6 Management function requirements ....................................................................... 325

28.5.4.7 Technology-dependent interface............................................................................. 327

28.5.4.8 State diagrams......................................................................................................... 328

28.5.4.9 Electrical characteristics ......................................................................................... 329

28.5.4.10 Auto-Negotiation annexes ...................................................................................... 329

28.6 Auto-Negotiation expansion ..................................................................................................... 332

29. System considerations for multisegment 100BASE-T networks ....................................................... 333

29.1 Overview................................................................................................................................... 333

29.1.1 Single collision domain multisegment networks .............................................................. 334

29.1.2 Repeater usage .................................................................................................................. 335

29.2 Transmission System Model 1.................................................................................................. 335

29.3 Transmission System Model 2.................................................................................................. 335

29.3.1 Round-trip collision delay ................................................................................................ 337

29.3.1.1 Worst-case path delay value (PDV) selection ........................................................ 337

29.3.1.2 Worst-case PDV calculation................................................................................... 338

29.4 Full duplex 100 Mb/s topology limitations............................................................................... 339

30. Management........................................................................................................................................ 341

30.1 Overview................................................................................................................................... 341

30.1.1 Scope................................................................................................................................. 342

30.1.2 Relationship to objects in IEEE 802.1F............................................................................ 342

30.1.3 Systems management overview........................................................................................ 342

30.1.4 Management model........................................................................................................... 343

30.2 Managed objects ....................................................................................................................... 344

30.2.1 Introduction....................................................................................................................... 344

30.2.2 Overview of managed objects........................................................................................... 344

30.2.2.1 Text description of managed objects ...................................................................... 344

30.2.2.2 Functions to support management .......................................................................... 348

30.2.2.2.1 DTE MAC sublayer functions ...................................................................... 348

30.2.2.2.2 Repeater functions ........................................................................................ 348

30.2.3 Containment...................................................................................................................... 351

30.2.4 Naming.............................................................................................................................. 354

30.2.5 Capabilities ....................................................................................................................... 354

30.3 Layer management for DTEs.................................................................................................... 380

30.3.1 MAC entity managed object class .................................................................................... 380

30.3.1.1 MAC entity attributes ............................................................................................. 380

30.3.1.1.1 aMACID ....................................................................................................... 380

30.3.1.1.2 aFramesTransmittedOK................................................................................ 380

30.3.1.1.3 aSingleCollisionFrames ................................................................................ 381

30.3.1.1.4 aMultipleCollisionFrames ............................................................................ 381

30.3.1.1.5 aFramesReceivedOK .................................................................................... 381

30.3.1.1.6 aFrameCheckSequenceErrors....................................................................... 381

30.3.1.1.7 aAlignmentErrors.......................................................................................... 382

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30.3.1.1.8 aOctetsTransmittedOK ................................................................................. 382

30.3.1.1.9 aFramesWithDeferredXmissions.................................................................. 382

30.3.1.1.10 aLateCollisions ............................................................................................. 382

30.3.1.1.11 aFramesAbortedDueToXSColls ................................................................... 383

30.3.1.1.12 aFramesLostDueToIntMACXmitError ........................................................ 383

30.3.1.1.13 aCarrierSenseErrors ...................................................................................... 383

30.3.1.1.14 aOctetsReceivedOK...................................................................................... 383

30.3.1.1.15 aFramesLostDueToIntMACRcvError .......................................................... 384

30.3.1.1.16 aPromiscuousStatus ...................................................................................... 384

30.3.1.1.17 aReadMulticastAddressList .......................................................................... 384

30.3.1.1.18 aMulticastFramesXmittedOK....................................................................... 385

30.3.1.1.19 aBroadcastFramesXmittedOK ...................................................................... 385

30.3.1.1.20 aFramesWithExcessiveDeferral.................................................................... 385

30.3.1.1.21 aMulticastFramesReceivedOK ..................................................................... 385

30.3.1.1.22 aBroadcastFramesReceivedOK .................................................................... 386

30.3.1.1.23 aInRangeLengthErrors.................................................................................. 386

30.3.1.1.24 aOutOfRangeLengthField............................................................................. 386

30.3.1.1.25 aFrameTooLongErrors.................................................................................. 386

30.3.1.1.26 aMACEnableStatus....................................................................................... 387

30.3.1.1.27 aTransmitEnableStatus ................................................................................. 387

30.3.1.1.28 aMulticastReceiveStatus............................................................................... 387

30.3.1.1.29 aReadWriteMACAddress ............................................................................. 387

30.3.1.1.30 aCollisionFrames .......................................................................................... 388

30.3.1.1.31 aMACCapabilities ........................................................................................ 388

30.3.1.1.32 aDuplexStatus ............................................................................................... 388

30.3.1.1.33 aRateControlAbility...................................................................................... 388

30.3.1.1.34 aRateControlStatus ....................................................................................... 389

30.3.1.1.35 aDeferControlAbility .................................................................................... 389

30.3.1.1.36 aDeferControlStatus...................................................................................... 389

30.3.1.1.37 aMaxFrameLength........................................................................................ 389

30.3.1.1.38 aSlowProtocolFrameLimit............................................................................ 390

30.3.1.2 MAC entity actions................................................................................................. 390

30.3.1.2.1 acInitializeMAC............................................................................................ 390

30.3.1.2.2 acAddGroupAddress..................................................................................... 390

30.3.1.2.3 acDeleteGroupAddress ................................................................................. 390

30.3.1.2.4 acExecuteSelfTest......................................................................................... 390

30.3.2 PHY device managed object class.................................................................................... 391

30.3.2.1 PHY device attributes ............................................................................................. 391

30.3.2.1.1 aPHYID ........................................................................................................ 391

30.3.2.1.2 aPhyType ...................................................................................................... 391

30.3.2.1.3 aPhyTypeList ................................................................................................ 392

30.3.2.1.4 aSQETestErrors ............................................................................................ 393

30.3.2.1.5 aSymbolErrorDuringCarrier ......................................................................... 393

30.3.2.1.6 aMIIDetect .................................................................................................... 393

30.3.2.1.7 aPhyAdminState ........................................................................................... 394

30.3.2.1.8 aTransmitLPIMicroseconds.......................................................................... 394

30.3.2.1.9 aReceiveLPIMicroseconds ........................................................................... 394

30.3.2.1.10 aTransmitLPITransitions .............................................................................. 395

30.3.2.1.11 aReceiveLPITransitions................................................................................ 395

30.3.2.2 PHY device actions................................................................................................. 395

30.3.2.2.1 acPhyAdminControl ..................................................................................... 395

30.3.3 MAC control entity object class ....................................................................................... 395

30.3.3.1 aMACControlID ..................................................................................................... 395

30.3.3.2 aMACControlFunctionsSupported ......................................................................... 396

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30.3.3.3 aMACControlFramesTransmitted .......................................................................... 396

30.3.3.4 aMACControlFramesReceived............................................................................... 396

30.3.3.5 aUnsupportedOpcodesReceived ............................................................................. 396

30.3.3.6 aPFCEnableStatus................................................................................................... 397

30.3.4 PAUSE entity managed object class................................................................................. 397

30.3.4.1 aPAUSELinkDelayAllowance................................................................................ 397

30.3.4.2 aPAUSEMACCtrlFramesTransmitted.................................................................... 397

30.3.4.3 aPAUSEMACCtrlFramesReceived........................................................................ 398

30.3.5 MPCP managed object class............................................................................................. 398

30.3.5.1 MPCP Attributes..................................................................................................... 398

30.3.5.1.1 aMPCPID...................................................................................................... 398

30.3.5.1.2 aMPCPAdminState....................................................................................... 398

30.3.5.1.3 aMPCPMode................................................................................................. 398

30.3.5.1.4 aMPCPLinkID .............................................................................................. 399

30.3.5.1.5 aMPCPRemoteMACAddress ....................................................................... 399

30.3.5.1.6 aMPCPRegistrationState .............................................................................. 399

30.3.5.1.7 aMPCPMACCtrlFramesTransmitted............................................................ 400

30.3.5.1.8 aMPCPMACCtrlFramesReceived ................................................................ 400

30.3.5.1.9 aMPCPTxGate .............................................................................................. 400

30.3.5.1.10 aMPCPTxRegAck ........................................................................................ 400

30.3.5.1.11 aMPCPTxRegister ........................................................................................ 401

30.3.5.1.12 aMPCPTxRegRequest .................................................................................. 401

30.3.5.1.13 aMPCPTxReport........................................................................................... 401

30.3.5.1.14 aMPCPRxGate.............................................................................................. 401

30.3.5.1.15 aMPCPRxRegAck ........................................................................................ 402

30.3.5.1.16 aMPCPRxRegister ........................................................................................ 402

30.3.5.1.17 aMPCPRxRegRequest .................................................................................. 402

30.3.5.1.18 aMPCPRxReport .......................................................................................... 402

30.3.5.1.19 aMPCPTransmitElapsed............................................................................... 403

30.3.5.1.20 aMPCPReceiveElapsed ................................................................................ 403

30.3.5.1.21 aMPCPRoundTripTime ................................................................................ 403

30.3.5.1.22 aMPCPDiscoveryWindowsSent ................................................................... 403

30.3.5.1.23 aMPCPDiscoveryTimeout ............................................................................ 404

30.3.5.1.24 aMPCPMaximumPendingGrants.................................................................. 404

30.3.5.1.25 aMPCPRecognizedMulticastIDs .................................................................. 404

30.3.5.2 MPCP Actions ........................................................................................................ 404

30.3.5.2.1 acMPCPAdminControl................................................................................. 404

30.3.6 OAM object class.............................................................................................................. 404

30.3.6.1 OAM Attributes ...................................................................................................... 405

30.3.6.1.1 aOAMID ....................................................................................................... 405

30.3.6.1.2 aOAMAdminState ........................................................................................ 405

30.3.6.1.3 aOAMMode .............................................

..................................................... 405

30.3.6.1.4 aOAMDiscoveryState................................................................................... 405

30.3.6.1.5 aOAMRemoteMACAddress......................................................................... 406

30.3.6.1.6 aOAMLocalConfiguration............................................................................ 406

30.3.6.1.7 aOAMRemoteConfiguration ........................................................................ 406

30.3.6.1.8 aOAMLocalPDUConfiguration.................................................................... 407

30.3.6.1.9 aOAMRemotePDUConfiguration ................................................................ 407

30.3.6.1.10 aOAMLocalFlagsField ................................................................................. 407

30.3.6.1.11 aOAMRemoteFlagsField .............................................................................. 407

30.3.6.1.12 aOAMLocalRevision .................................................................................... 408

30.3.6.1.13 aOAMRemoteRevision................................................................................. 408

30.3.6.1.14 aOAMLocalState .......................................................................................... 408

30.3.6.1.15 aOAMRemoteState....................................................................................... 409

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30.3.6.1.16 aOAMRemoteVendorOUI............................................................................ 409

30.3.6.1.17 aOAMRemoteVendorSpecificInfo ............................................................... 409

30.3.6.1.18 aOAMUnsupportedCodesTx ........................................................................ 410

30.3.6.1.19 aOAMUnsupportedCodesRx ........................................................................ 410

30.3.6.1.20 aOAMInformationTx.................................................................................... 410

30.3.6.1.21 aOAMInformationRx.................................................................................... 410

30.3.6.1.22 aOAMUniqueEventNotificationTx .............................................................. 411

30.3.6.1.23 aOAMDuplicateEventNotificationTx........................................................... 411

30.3.6.1.24 aOAMUniqueEventNotificationRx .............................................................. 411

30.3.6.1.25 aOAMDuplicateEventNotificationRx .......................................................... 412

30.3.6.1.26 aOAMLoopbackControlTx........................................................................... 412

30.3.6.1.27 aOAMLoopbackControlRx .......................................................................... 412

30.3.6.1.28 aOAMVariableRequestTx ............................................................................ 412

30.3.6.1.29 aOAMVariableRequestRx ............................................................................ 413

30.3.6.1.30 aOAMVariableResponseTx.......................................................................... 413

30.3.6.1.31 aOAMVariableResponseRx.......................................................................... 413

30.3.6.1.32 aOAMOrganizationSpecificTx ..................................................................... 413

30.3.6.1.33 aOAMOrganizationSpecificRx..................................................................... 414

30.3.6.1.34 aOAMLocalErrSymPeriodConfig ................................................................ 414

30.3.6.1.35 aOAMLocalErrSymPeriodEvent .................................................................. 414

30.3.6.1.36 aOAMLocalErrFrameConfig........................................................................ 415

30.3.6.1.37 aOAMLocalErrFrameEvent.......................................................................... 415

30.3.6.1.38 aOAMLocalErrFramePeriodConfig ............................................................. 415

30.3.6.1.39 aOAMLocalErrFramePeriodEvent ............................................................... 415

30.3.6.1.40 aOAMLocalErrFrameSecsSummaryConfig ................................................. 416

30.3.6.1.41 aOAMLocalErrFrameSecsSummaryEvent................................................... 416

30.3.6.1.42 aOAMRemoteErrSymPeriodEvent............................................................... 416

30.3.6.1.43 aOAMRemoteErrFrameEvent ...................................................................... 417

30.3.6.1.44 aOAMRemoteErrFramePeriodEvent............................................................ 417

30.3.6.1.45 aOAMRemoteErrFrameSecsSummaryEvent ............................................... 418

30.3.6.1.46 aFramesLostDueToOAMError..................................................................... 418

30.3.6.2 OAM Actions.......................................................................................................... 419

30.3.6.2.1 acOAMAdminControl .................................................................................. 419

30.3.7 OMPEmulation managed object class .............................................................................. 419

30.3.7.1 OMPEmulation Attributes ...................................................................................... 419

30.3.7.1.1 aOMPEmulationID ....................................................................................... 419

30.3.7.1.2 aOMPEmulationType ................................................................................... 419

30.3.7.1.3 aSLDErrors ................................................................................................... 419

30.3.7.1.4 aCRC8Errors..........................................

....................................................... 420

30.3.7.1.5 aGoodLLID................................................................................................... 420

30.3.7.1.6 aONUPONcastLLID..................................................................................... 420

30.3.7.1.7 aOLTPONcastLLID...................................................................................... 420

30.3.7.1.8 aBadLLID ..................................................................................................... 421

30.3.8 EXTENSION entity managed object class....................................................................... 421

30.3.8.1 aEXTENSIONMACCtrlFramesTransmitted.......................................................... 421

30.3.8.2 aEXTENSIONMACCtrlFramesReceived .............................................................. 421

30.3.8.3 aEXTENSIONMACCtrlStatus ............................................................................... 421

30.4 Layer management for 10, 100, and 1000 Mb/s baseband repeaters........................................ 422

30.4.1 Repeater managed object class ......................................................................................... 422

30.4.1.1 Repeater attributes .................................................................................................. 422

30.4.1.1.1 aRepeaterID .................................................................................................. 422

30.4.1.1.2 aRepeaterType .............................................................................................. 422

30.4.1.1.3 aRepeaterGroupCapacity .............................................................................. 422

30.4.1.1.4 aGroupMap ................................................................................................... 423

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30.4.1.1.5 aRepeaterHealthState.................................................................................... 423

30.4.1.1.6 aRepeaterHealthText .................................................................................... 423

30.4.1.1.7 aRepeaterHealthData .................................................................................... 423

30.4.1.1.8 aTransmitCollisions ...................................................................................... 424

30.4.1.2 Repeater actions...................................................................................................... 424

30.4.1.2.1 acResetRepeater............................................................................................ 424

30.4.1.2.2 acExecuteNonDisruptiveSelfTest................................................................. 424

30.4.1.3 Repeater notifications ............................................................................................. 425

30.4.1.3.1 nRepeaterHealth............................................................................................ 425

30.4.1.3.2 nRepeaterReset ............................................................................................. 425

30.4.1.3.3 nGroupMapChange....................................................................................... 425

30.4.2 Group managed object class ............................................................................................. 425

30.4.2.1 Group attributes ...................................................................................................... 426

30.4.2.1.1 aGroupID ...................................................................................................... 426

30.4.2.1.2 aGroupPortCapacity...................................................................................... 426

30.4.2.1.3 aPortMap....................................................................................................... 426

30.4.2.2 Group notifications ................................................................................................. 426

30.4.2.2.1 nPortMapChange .......................................................................................... 426

30.4.3 Repeater port managed object class.................................................................................. 427

30.4.3.1 Port attributes.......................................................................................................... 427

30.4.3.1.1 aPortID.......................................................................................................... 427

30.4.3.1.2 aPortAdminState........................................................................................... 427

30.4.3.1.3 aAutoPartitionState....................................................................................... 427

30.4.3.1.4 aReadableFrames .......................................................................................... 428

30.4.3.1.5 aReadableOctets............................................................................................ 428

30.4.3.1.6 aFrameCheckSequenceErrors....................................................................... 428

30.4.3.1.7 aAlignmentErrors.......................................................................................... 428

30.4.3.1.8 aFramesTooLong .......................................................................................... 429

30.4.3.1.9 aShortEvents ................................................................................................. 429

30.4.3.1.10 aRunts ........................................................................................................... 429

30.4.3.1.11 aCollisions .................................................................................................... 430

30.4.3.1.12 aLateEvents................................................................................................... 430

30.4.3.1.13 aVeryLongEvents ......................................................................................... 430

30.4.3.1.14 aDataRateMismatches .................................................................................. 431

30.4.3.1.15 aAutoPartitions ............................................................................................. 431

30.4.3.1.16 aIsolates ........................................................................................................ 431

30.4.3.1.17 aSymbolErrorDuringPacket.......................................................................... 432

30.4.3.1.18 aLastSourceAddress...................................................................................... 432

30.4.3.1.19 aSourceAddressChanges............................................................................... 432

30.4.3.1.20 aBursts .......................................................................................................... 432

30.4.3.2 Port actions ..........................................................................................................

... 432

30.4.3.2.1 acPortAdminControl..................................................................................... 432

30.5 Layer management for medium attachment units (MAUs) ...................................................... 433

30.5.1 MAU managed object class .............................................................................................. 433

30.5.1.1 MAU attributes ....................................................................................................... 433

30.5.1.1.1 aMAUID ....................................................................................................... 433

30.5.1.1.2 aMAUType ................................................................................................... 433

30.5.1.1.3 aMAUTypeList............................................................................................. 438

30.5.1.1.4 aMediaAvailable........................................................................................... 438

30.5.1.1.5 aLoseMediaCounter...................................................................................... 440

30.5.1.1.6 aJabber .......................................................................................................... 440

30.5.1.1.7 aMAUAdminState ........................................................................................ 440

30.5.1.1.8 aBbMAUXmitRcvSplitType ........................................................................ 440

30.5.1.1.9 aBroadbandFrequencies................................................................................ 441

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