IEEE 802.1Q-2014

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IEEE Standard for Local and metropolitan area networks–Bridges and Bridged Networks

Published By	Publication Date	Number of Pages
IEEE	2014

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Description

Revision Standard – Superseded. This standard specifies how the Media Access Control (MAC) Service is supported by Bridged Networks, the principles of operation of those networks, and the operation of MAC Bridges and VLAN Bridges, including management, protocols, and algorithms. This revision includes the following amendments and corrigenda: IEEE 802.1Qbe-2011 IEEE 802.1Qbc-2011 IEEE 802.1Qbb-2011 IEEE 802.1Qaz-2011 IEEE 802.1Qbf-2011 IEEE 802.1Qbg-2012 IEEE 802.1aq-2012 IEEE 802.1Q-2011/Cor 2-2012 IEEE 802.1Qbp-2014./index.html)

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std 802.1Q™-2014 Cover
3	Title page
5	Important Notices and Disclaimers Concerning IEEE Standards Documents
8	Participants
10	Historical participants
17	Introduction
19	Contents
50	Figures
57	Tables
63	IMPORTANT NOTICE 1. Overview
64	1.1 Scope 1.2 Purpose 1.3 Introduction
71	2. Normative references
74	3. Definitions
94	4. Abbreviations
99	5. Conformance 5.1 Requirements terminology 5.2 Conformant components and equipment
100	5.3 Protocol Implementation Conformance Statement (PICS) 5.4 VLAN Bridge component requirements
101	5.4.1 VLAN Bridge component options
105	5.4.2 Multiple VLAN Registration Protocol (MVRP) requirements
106	5.4.3 VLAN Bridge requirements for congestion notification 5.4.4 Multiple Stream Registration Protocol (MSRP) requirements
107	5.4.5 Shortest Path Bridging (SPB) operation (optional)
108	5.5 C-VLAN component conformance 5.5.1 C-VLAN component options 5.6 S-VLAN component conformance
109	5.6.1 S-VLAN component options 5.6.2 S-VLAN component requirements for Provider Backbone Bridge Traffic Engineering (PBB-TE) 5.6.3 S-VLAN component requirements for PBB-TE IPS
110	5.6.4 S-VLAN component requirements for ECMP with flow filtering 5.7 I-component conformance 5.7.1 I-component options 5.8 B-component conformance
111	5.8.1 B-component options 5.8.2 B-component requirements for PBB-TE 5.8.3 B-component requirements for PBB-TE IPS
112	5.8.4 B-component requirements for ECMP with flow filtering 5.9 C-VLAN Bridge conformance 5.9.1 C-VLAN Bridge options 5.10 Provider Bridge conformance 5.10.1 S-VLAN Bridge conformance
113	5.10.2 Provider Edge Bridge conformance 5.11 System requirements for Priority-based Flow Control (PFC) 5.12 Backbone Edge Bridge (BEB) conformance
114	5.12.1 BEB requirements for PBB-TE 5.13 MAC Bridge component requirements 5.13.1 MAC Bridge component options
115	5.14 MAC Bridge conformance 5.14.1 MAC Bridge options 5.15 TPMR component conformance 5.15.1 TPMR component options
116	5.16 TPMR conformance 5.16.1 TPMR options 5.17 T-component conformance 5.17.1 T-component options 5.18 End station requirements for MMRP, MVRP, and MSRP
117	5.18.1 MMRP requirements and options 5.18.2 MVRP requirements and options
118	5.18.3 MSRP requirements and options 5.19 VLAN-aware end station requirements for CFM
119	5.20 End station requirements—FQTSS 5.21 End station requirements for congestion notification
120	5.22 MAC-specific bridging methods 5.23 EVB Bridge requirements
121	5.24 EVB station requirements 5.24.1 Edge relay (ER) requirements
123	6. Support of the MAC Service
124	6.1 Basic architectural concepts and terms 6.2 Provision of the MAC Service
125	6.2.1 Point-to-point, multipoint-to-multipoint, and rooted-multipoint connectivity 6.3 Support of the MAC Service
126	6.4 Preservation of the MAC Service 6.5 Quality of service (QoS) maintenance 6.5.1 Service availability
127	6.5.2 Frame loss 6.5.3 Frame misordering
128	6.5.4 Frame duplication
129	6.5.5 Transit delay
130	6.5.6 Frame lifetime 6.5.7 Undetected frame error rate 6.5.8 Maximum Service Data Unit Size 6.5.9 Priority
131	6.5.10 Throughput
132	6.6 Internal Sublayer Service (ISS) 6.6.1 Control primitives and parameters 6.7 Support of the ISS by specific MAC procedures 6.7.1 Support of the ISS by IEEE Std 802.3 (Ethernet) 6.8 Enhanced Internal Sublayer Service (EISS)
133	6.8.1 Service primitives
134	6.8.2 Status parameters 6.8.3 Point-to-point parameters 6.8.4 Control primitives and parameters 6.9 Support of the EISS
136	6.9.1 Data indications
137	6.9.2 Data requests 6.9.3 Priority Code Point encoding
139	6.9.4 Regenerating priority
140	6.10 Support of the ISS/EISS by PIPs
142	6.10.1 Data indications
143	6.10.2 Data requests 6.10.3 Priority Code Point encoding
144	6.11 Support of the EISS by CBPs
145	6.11.1 Data indications
146	6.11.2 Data requests
147	6.11.3 Priority Code Point decoding 6.11.4 Regenerating priority 6.12 Protocol VLAN classification
149	6.12.1 Protocol Templates 6.12.2 Protocol Group Identifiers 6.12.3 Protocol Group Database
150	6.13 Support of the ISS for attachment to a PBN
151	6.13.1 Data requests
152	6.13.2 Data indications 6.14 Support of the ISS within a system 6.15 Support of the ISS by additional technologies
153	6.16 Filtering services in Bridged Networks 6.16.1 Purpose(s) of filtering service provision 6.16.2 Goals of filtering service provision 6.16.3 Users of filtering services
154	6.16.4 Basis of service 6.16.5 Categories of service 6.16.6 Service configuration
155	6.16.7 Service definition for Extended Filtering Services
156	6.17 EISS Multiplex Entity
157	6.18 Backbone Service Instance Multiplex Entity
158	6.18.1 Demultiplexing direction
159	6.18.2 Multiplexing direction
160	6.18.3 Priority Code Point encoding 6.18.4 Status parameters 6.19 TESI Multiplex Entity
161	6.20 Support of the ISS with signaled priority
162	6.20.1 Data indications 6.20.2 Data requests 6.21 Infrastructure Segment Multiplex Entity
164	7. Principles of Virtual Bridged Network operation 7.1 Network overview
165	7.2 Use of VLANs 7.3 Active topology
166	7.4 VLAN topology
167	7.5 Locating end stations 7.6 Ingress, forwarding, and egress rules
169	8. Principles of Bridge operation 8.1 Bridge operation 8.1.1 Relay
170	8.1.2 Filtering and relaying information 8.1.3 Duplicate frame prevention 8.1.4 Traffic segregation
171	8.1.5 Traffic reduction 8.1.6 Traffic expediting 8.1.7 Conversion of frame formats
172	8.2 Bridge architecture
174	8.3 Model of operation
177	8.4 Active topologies, learning, and forwarding
179	8.5 Bridge Port Transmit and Receive 8.5.1 Bridge Port connectivity
180	8.5.2 TPMR Port connectivity 8.5.3 Support of Higher Layer Entities
181	8.6 The Forwarding Process
182	8.6.1 Active topology enforcement
183	8.6.2 Ingress filtering 8.6.3 Frame filtering
186	8.6.4 Egress filtering 8.6.5 Flow classification and metering
187	8.6.6 Queuing frames
188	8.6.7 Queue management
189	8.6.8 Transmission selection
191	8.7 The Learning Process
192	8.7.1 Default filtering utility criteria 8.7.2 Enhanced filtering utility criteria 8.7.3 Ageing of Dynamic Filtering Entries
193	8.8 The Filtering Database (FDB)
196	8.8.1 Static Filtering Entries
197	8.8.2 Static VLAN Registration Entries
198	8.8.3 Dynamic Filtering Entries 8.8.4 MAC Address Registration Entries
199	8.8.5 Dynamic VLAN Registration Entries 8.8.6 Default Group filtering behavior
201	8.8.7 Dynamic Reservation Entries 8.8.8 Allocation of VIDs to FIDs
202	8.8.9 Querying the FDB
205	8.8.10 Determination of the member set for a VID
206	8.8.11 Permanent Database 8.8.12 Connection_Identifier 8.9 MST, SPB, and ESP configuration information
207	8.9.1 MST Configuration Table
208	8.9.2 MST configuration identification 8.9.3 FID to MSTI Allocation Table 8.9.4 SPT Configuration Identification
209	8.10 Spanning Tree Protocol Entity 8.11 MRP entities 8.12 Bridge Management Entity
210	8.13 Addressing 8.13.1 End stations 8.13.2 Bridge Ports 8.13.3 Use of LLC by Spanning Tree Protocol Entities
211	8.13.4 Reserved MAC addresses 8.13.5 Group MAC addresses for spanning tree entity
213	8.13.6 Group MAC addresses for MRP Applications 8.13.7 Bridge Management Entities
214	8.13.8 Unique identification of a Bridge 8.13.9 Points of attachment and connectivity for Higher Layer Entities
217	8.13.10 VLAN attachment and connectivity for Higher Layer Entities
218	8.13.11 CFM entities
220	9. Tagged frame format 9.1 Purpose of tagging 9.2 Representation and encoding of tag fields
221	9.3 Tag format 9.4 TPID formats 9.5 Tag Protocol identification
222	9.6 VLAN Tag Control Information (TCI)
223	9.7 Backbone Service Instance Tag Control Information (I-TAG TCI)
225	10. Multiple Registration Protocol (MRP) and Multiple MAC Registration Protocol (MMRP) 10.1 MRP overview
228	10.2 MRP architecture
229	10.3 MRP Attribute Propagation (MAP)
230	10.3.1 MAP Context
231	10.4 Requirements to be met by MRP
232	10.5 Requirements for interoperability between MRP Participants
233	10.6 Protocol operation
237	10.7 Protocol specification
238	10.7.1 Notational conventions and abbreviations
240	10.7.2 Registrar Administrative Controls 10.7.3 Applicant Administrative Controls 10.7.4 Protocol timers
241	10.7.5 Protocol event definitions
244	10.7.6 Protocol Action definitions
246	10.7.7 Applicant state machine
247	10.7.8 Registrar state machine 10.7.9 LeaveAll state machine
248	10.7.10 PeriodicTransmission state machine 10.7.11 Timer values
249	10.7.12 Operational reporting and statistics 10.7.13 Interoperability considerations
250	10.8 Structure and encoding of Multiple Registration Protocol Data Units (MRPDUs) 10.8.1 Structure
252	10.8.2 Encoding of MRPDU parameters
255	10.8.3 Packing and parsing MRPDUs
257	10.9 Multiple MAC Registration Protocol (MMRP)—Purpose
258	10.10 Model of operation
259	10.10.1 Propagation of Group Membership information
260	10.10.2 Propagation of Group service requirement information 10.10.3 Source pruning 10.10.4 Use of Group service requirement registration by end stations 10.11 Default Group filtering behavior and MMRP propagation
262	10.12 Definition of the MMRP application 10.12.1 Definition of MRP elements
264	10.12.2 Provision and support of Extended Filtering Services
266	10.12.3 Use of “new” declaration capability 10.12.4 Attribute value support requirements
268	11. VLAN topology management 11.1 Static and dynamic VLAN configuration
269	11.2 Multiple VLAN Registration Protocol (MVRP) 11.2.1 MVRP overview
271	11.2.2 VLAN registration service definition
272	11.2.3 Definition of the MVRP application
275	11.2.4 VID translation table 11.2.5 Use of “new” declaration capability 11.2.6 New-Only Participant and Registrar Administrative Controls 11.2.7 Attribute value support requirements
276	12. Bridge management 12.1 Management functions 12.1.1 Configuration Management
277	12.1.2 Fault Management 12.1.3 Performance Management 12.1.4 Security Management 12.1.5 Accounting Management 12.2 VLAN Bridge objects
278	12.3 Data types
279	12.4 Bridge Management Entity 12.4.1 Bridge Configuration
282	12.4.2 Port configuration
284	12.5 MAC entities 12.5.1 ISS Port Number table managed object (optional) 12.6 Forwarding process
285	12.6.1 The Port Counters 12.6.2 Priority handling
293	12.6.3 Traffic Class Table
294	12.7 Filtering Database (FDB) 12.7.1 The Filtering Database object
295	12.7.2 A Static Filtering Entry object
296	12.7.3 A Dynamic Filtering Entry object 12.7.4 A MAC Address Registration Entry object 12.7.5 A VLAN Registration Entry object 12.7.6 Permanent Database object
297	12.7.7 General FDB operations
299	12.8 Bridge Protocol Entity 12.8.1 The Protocol Entity
302	12.8.2 Bridge Port
306	12.9 MRP Entities 12.9.1 The MRP Timer object
307	12.9.2 The MRP Attribute Type object
308	12.9.3 Periodic state machine objects
309	12.10 Bridge VLAN managed objects 12.10.1 Bridge VLAN Configuration managed object
314	12.10.2 VLAN Configuration managed object
316	12.10.3 The VID to FID allocation managed object
318	12.11 MMRP entities 12.11.1 MMRP Configuration managed object
320	12.12 MST configuration entities 12.12.1 The MSTI List
321	12.12.2 The FID to MSTID Allocation Table
322	12.12.3 The MST Configuration Table
324	12.13 Provider Bridge management
325	12.13.1 Provider Bridge Port Type managed object
326	12.13.2 Customer Edge Port Configuration managed object
329	12.13.3 Remote Customer Access Port Configuration managed object
331	12.14 CFM entities
332	12.14.1 Maintenance Domain list managed object
334	12.14.2 CFM Stack managed object 12.14.3 Default MD Level managed object
336	12.14.4 Configuration Error List managed object 12.14.5 Maintenance Domain managed object
339	12.14.6 Maintenance Association managed object
341	12.14.7 Maintenance association Endpoint managed object
348	12.15 Backbone Core Bridge (BCB) management 12.16 Backbone Edge Bridge (BEB) management
350	12.16.1 BEB configuration managed object
353	12.16.2 BEB/PB/VLAN Bridge Port configuration managed object
354	12.16.3 VIP configuration managed object
355	12.16.4 PIP configuration managed object
362	12.16.5 CBP Configuration managed object
364	12.17 DDCFM entities
365	12.17.1 DDCFM Stack managed object 12.17.2 Reflection Responder managed object
369	12.17.3 RFM Receiver managed object
370	12.17.4 Decapsulator Responder managed object
372	12.17.5 SFM Originator managed object
375	12.18 PBB-TE Protection Switching managed objects 12.18.1 TE protection group list managed object
376	12.18.2 TE protection group managed object
378	12.19 TPMR managed objects
379	12.19.1 TPMR management entity
381	12.19.2 MAC and PHY entities 12.19.3 Forwarding Process
386	12.19.4 MAC Status Propagation Entity (MSPE)
388	12.20 Management entities for FQTSS 12.20.1 The Bandwidth Availability Parameter Table
389	12.20.2 The Transmission Selection Algorithm Table 12.20.3 The Priority Regeneration Override Table 12.21 Congestion Notification managed objects
390	12.21.1 CN component managed object 12.21.2 CN component priority managed object
391	12.21.3 CN Port priority managed object
392	12.21.4 Congestion Point managed object
393	12.21.5 Reaction Point port priority managed object 12.21.6 Reaction Point group managed object
394	12.22 Stream Reservation Protocol (SRP) entities 12.22.1 SRP Bridge Base Table 12.22.2 SRP Bridge Port Table
395	12.22.3 SRP Latency Parameter Table 12.22.4 SRP Stream Table 12.22.5 SRP Reservations Table
396	12.23 Priority-based Flow Control objects
397	12.24 1:1 PBB-TE IPS managed objects 12.24.1 IPG list managed object
398	12.24.2 IPG managed object
401	12.25 Shortest Path Bridging managed objects
402	12.25.1 The SPB System managed object
404	12.25.2 The SPB MTID Static managed object
405	12.25.3 The SPB Topology Instance Dynamic managed object
406	12.25.4 The SPB ECT Static Entry managed object
407	12.25.5 The SPB ECT Dynamic Entry managed object
408	12.25.6 The SPB Adjacency Static Entry managed object
409	12.25.7 The SPB Adjacency Dynamic Entry managed object
410	12.25.8 The SPBM BSI Static Entry managed object
411	12.25.9 The SPB Topology Node Table managed object
412	12.25.10 The SPB Topology ECT Table managed object
413	12.25.11 The SPB Topology Edge Table managed object
414	12.25.12 The SPBM Topology Service Table managed object
415	12.25.13 The SPBV Topology Service Table managed object
416	12.25.14 The ECMP ECT Static Entry managed object
417	12.26 Edge Virtual Bridging (EVB) management
420	12.26.1 EVB system base table
422	12.26.2 SBP table entry
423	12.26.3 VSI table entry
425	12.26.4 S-channel configuration and management
428	12.26.5 ER management
429	12.27 Edge Control Protocol (ECP) management 12.27.1 ECP table entry
430	13. Spanning tree protocols
431	13.1 Protocol design requirements
432	13.2 Protocol support requirements 13.2.1 MSTP support requirements 13.2.2 SPB support requirements
433	13.3 Protocol design goals 13.4 RSTP overview
434	13.4.1 Computation of the active topology
435	13.4.2 Example topologies
438	13.5 MSTP overview
439	13.5.1 Example topologies
442	13.5.2 Relationship of MSTP to RSTP 13.5.3 Modeling an MST or SPT Region as a single Bridge
443	13.6 SPB overview
444	13.7 Compatibility and interoperability 13.7.1 Designated Port selection 13.7.2 Force Protocol Version
445	13.8 MST Configuration Identifier (MCID)
446	13.9 Spanning tree priority vectors
448	13.10 CIST Priority Vector calculations
450	13.11 MST Priority Vector calculations
452	13.12 Port Role assignments
453	13.13 Stable connectivity
454	13.14 Communicating spanning tree information
455	13.15 Changing spanning tree information
456	13.16 Changing Port States with RSTP or MSTP
457	13.16.1 Subtree connectivity and priority vectors 13.16.2 Root Port transition to Forwarding 13.16.3 Designated Port transition to Forwarding
459	13.16.4 Master Port transition to Forwarding
461	13.17 Changing Port States with SPB
464	13.17.1 Agreement Digest 13.18 Managing spanning tree topologies
465	13.19 Updating learned station location information
467	13.20 Managing reconfiguration
468	13.21 Partial and disputed connectivity 13.22 In-service upgrades
470	13.23 Fragile Bridges 13.24 Spanning tree protocol state machines
472	13.25 State machine timers
473	13.25.1 edgeDelayWhile 13.25.2 fdWhile 13.25.3 helloWhen 13.25.4 mdelayWhile 13.25.5 rbWhile 13.25.6 rcvdInfoWhile
474	13.25.7 rrWhile 13.25.8 tcDetected 13.25.9 tcWhile 13.25.10 pseudoInfoHelloWhen 13.26 Per Bridge variables
475	13.26.1 agreementDigest 13.26.2 BridgeIdentifier 13.26.3 BridgePriority 13.26.4 BridgeTimes
476	13.26.5 ForceProtocolVersion 13.26.6 MigrateTime 13.26.7 MstConfigId 13.26.8 AuxMstConfigId 13.26.9 rootPortId 13.26.10 rootPriority 13.26.11 rootTimes 13.26.12 TxHoldCount 13.27 Per port variables
479	13.27.1 AdminEdge 13.27.2 ageingTime 13.27.3 agree 13.27.4 agreed 13.27.5 agreedAbove 13.27.6 agreedDigest 13.27.7 agreedDigestValid 13.27.8 agreeDigest 13.27.9 agreeDigestValid
480	13.27.10 agreedMisorder 13.27.11 agreedN 13.27.12 agreedND 13.27.13 agreedPriority 13.27.14 agreedTopology 13.27.15 agreementOutstanding 13.27.16 agreeN 13.27.17 agreeND 13.27.18 AutoEdge
481	13.27.19 AutoIsolate 13.27.20 designatedPriority 13.27.21 designatedTimes 13.27.22 disputed 13.27.23 enableBPDUrx 13.27.24 enableBPDUtx 13.27.25 ExternalPortPathCost 13.27.26 isL2gp
482	13.27.27 isolate 13.27.28 fdbFlush 13.27.29 forward 13.27.30 forwarding 13.27.31 infoInternal 13.27.32 infoIs 13.27.33 InternalPortPathCost
483	13.27.34 learn 13.27.35 learning 13.27.36 master 13.27.37 mastered 13.27.38 mcheck 13.27.39 msgPriority 13.27.40 msgTimes
484	13.27.41 neighbourPriority 13.27.42 newInfo 13.27.43 newInfoMsti 13.27.44 operEdge 13.27.45 portEnabled 13.27.46 portId 13.27.47 portPriority
485	13.27.48 portTimes 13.27.49 proposed 13.27.50 proposing 13.27.51 pseudoRootId 13.27.52 rcvdBPDU 13.27.53 rcvdInfo 13.27.54 rcvdInternal 13.27.55 rcvdMsg 13.27.56 rcvdRSTP 13.27.57 rcvdSTP 13.27.58 rcvdTc 13.27.59 rcvdTcAck
486	13.27.60 rcvdTcn 13.27.61 reRoot 13.27.62 reselect 13.27.63 restrictedDomainRole 13.27.64 restrictedRole 13.27.65 restrictedTcn 13.27.66 role 13.27.67 selected 13.27.68 selectedRole
487	13.27.69 sendRSTP 13.27.70 sync 13.27.71 synced 13.27.72 tcAck 13.27.73 tcProp 13.27.74 tick 13.27.75 txCount 13.27.76 updtInfo 13.28 State machine conditions and parameters
488	13.28.1 allSptAgree 13.28.2 allSynced 13.28.3 allTransmitReady 13.28.4 BestAgreementPriority 13.28.5 cist 13.28.6 cistRootPort
489	13.28.7 cistDesignatedPort 13.28.8 EdgeDelay 13.28.9 forwardDelay 13.28.10 FwdDelay 13.28.11 HelloTime 13.28.12 MaxAge 13.28.13 msti 13.28.14 mstiDesignatedOrTCpropagatingRootPort 13.28.15 mstiMasterPort 13.28.16 operPointToPoint 13.28.17 rcvdAnyMsg 13.28.18 rcvdCistMsg
490	13.28.19 rcvdMstiMsg 13.28.20 reRooted 13.28.21 rstpVersion 13.28.22 spt 13.28.23 stpVersion 13.28.24 updtCistInfo 13.28.25 updtMstiInfo 13.29 State machine procedures
491	13.29.1 betterorsameInfo(newInfoIs) 13.29.2 clearAllRcvdMsgs() 13.29.3 clearReselectTree()
492	13.29.4 disableForwarding() 13.29.5 disableLearning() 13.29.6 enableForwarding() 13.29.7 enableLearning() 13.29.8 fromSameRegion() 13.29.9 newTcDetected() 13.29.10 newTcWhile()
493	13.29.11 pseudoRcvMsgs() 13.29.12 rcvInfo()
494	13.29.13 rcvMsgs() 13.29.14 rcvAgreements() 13.29.15 recordAgreement()
495	13.29.16 recordDispute() 13.29.17 recordMastered() 13.29.18 recordPriority() 13.29.19 recordProposal() 13.29.20 recordTimes()
496	13.29.21 setReRootTree() 13.29.22 setSelectedTree() 13.29.23 setSyncTree() 13.29.24 setTcFlags() 13.29.25 setTcPropTree() 13.29.26 syncMaster() 13.29.27 txConfig()
497	13.29.28 txRstp() 13.29.29 txTcn() 13.29.30 updtAgreement()
498	13.29.31 updtBPDUVersion() 13.29.32 updtDigest()
499	13.29.33 updtRcvdInfoWhile()
500	13.29.34 updtRolesTree()
501	13.29.35 uptRolesDisabledTree()
502	13.30 The Port Timers state machine 13.31 Port Receive state machine
503	13.32 Port Protocol Migration state machine 13.33 Bridge Detection state machine
504	13.34 Port Transmit state machine
505	13.35 Port Information state machine
506	13.36 Port Role Selection state machine 13.37 Port Role Transitions state machine
511	13.38 Port State Transition state machine
512	13.38.1 Port State transitions for the CIST and MSTIs 13.38.2 Port State transitions for SPTs
513	13.39 Topology Change state machine
514	13.40 Layer 2 Gateway Port Receive state machine 13.41 CEP spanning tree operation 13.41.1 PEP operPointToPointMAC and operEdge
515	13.41.2 updtRolesTree() 13.41.3 setReRootTree(), setSyncTree(), setTcPropTree() 13.41.4 allSynced, reRooted 13.41.5 Configuration parameters
516	13.42 Virtual Instance Port (VIP) spanning tree operation
517	14. Encoding of Bridge Protocol Data Units (BPDUs) 14.1 BPDU Structure 14.1.1 Transmission and representation of octets
519	14.1.2 Common BPDU fields 14.2 Encoding of parameter types 14.2.1 Encoding of Protocol Identifiers 14.2.2 Encoding of Protocol Version Identifiers 14.2.3 Encoding of BPDU types 14.2.4 Encoding of flags 14.2.5 Encoding of Bridge Identifiers
520	14.2.6 Encoding of External Root Path Cost and Internal Root Path Cost 14.2.7 Encoding of Port Identifiers
521	14.2.8 Encoding of Timer Values 14.2.9 Encoding of Port Role values 14.2.10 Encoding of Length Values 14.2.11 Encoding of Hop Counts 14.3 Transmission of BPDUs
522	14.4 Encoding and decoding of STP Configuration, RST, MST, and SPT BPDUs
523	14.4.1 MSTI Configuration Messages
524	14.5 Validation of received BPDUs
525	14.6 Validation and interoperability
527	15. Support of the MAC Service by PBNs 15.1 Service transparency
528	15.2 Customer service interfaces 15.3 Port-based service interface
529	15.4 C-tagged service interface
530	15.5 S-tagged service interface
531	15.6 Remote customer service interfaces (RCSIs)
534	15.7 Service instance segregation 15.8 Service instance selection and identification
535	15.9 Service priority selection
536	15.10 Service access protection
537	16. Principles of Provider Bridged Network (PBN) operation 16.1 PBN overview
538	16.2 Provider Bridged Network (PBN)
541	16.3 Service instance connectivity
542	16.4 Service provider learning of customer end station addresses 16.5 Detection of connectivity loops through attached networks
543	16.6 Network management
544	17. Management Information Base (MIB) 17.1 Internet Standard Management Framework 17.2 Structure of the MIB
545	17.2.1 Structure of the IEEE8021-TC-MIB
547	17.2.2 Structure of the IEEE8021-BRIDGE-MIB
552	17.2.3 Structure of the IEEE8021-SPANNING-TREE MIB
554	17.2.4 Structure of the IEEE8021-Q-BRIDGE-MIB
561	17.2.5 Structure of the IEEE8021-PB-MIB
562	17.2.6 Structure of the IEEE8021-MSTP-MIB
565	17.2.7 Structure of the IEEE8021-CFM-MIB
571	17.2.8 Structure of the IEEE8021-PBB-MIB
574	17.2.9 Structure of the IEEE8021-DDCFM-MIBs
576	17.2.10 Structure of the IEEE8021-PBBTE-MIB
579	17.2.11 Structure of the TPMR MIB
581	17.2.12 Structure of the IEEE8021-FQTSS-MIB
582	17.2.13 Structure of the Congestion Notification MIB
584	17.2.14 Structure of the IEEE8021-SRP-MIB
586	17.2.15 Structure of the MVRP extension MIB 17.2.16 Structure of the MIRP MIB
587	17.2.17 Structure of the PFC MIB 17.2.18 Structure of the IEEE80221-TEIPS MIB
589	17.2.19 Structure of the IEEE8021-SPB-MIB
593	17.2.20 Structure of the IEEE8021-EVB-MIB
596	17.2.21 Structure of the IEEE8021-ECMP-MIB
597	17.3 Relationship to other MIBs 17.3.1 Relationship of the IEEE8021-TC-MIB to other MIB modules
598	17.3.2 Relationship of the IEEE8021-BRIDGE-MIB to other MIB modules
600	17.3.3 Relationship of the IEEE8021-RSTP MIB to other MIB modules 17.3.4 Relationship of the IEEE8021-Q-BRIDGE-MIB to other MIB modules
602	17.3.5 Relationship of the IEEE8021-PB-BRIDGE MIB to other MIB modules 17.3.6 Relationship of the IEEE8021-MSTP-MIB to other MIB modules 17.3.7 Relationship of the IEEE8021-CFM-MIB to other MIB modules
603	17.3.8 Relationship of the IEEE8021-PBB-MIB to other MIB modules
605	17.3.9 Relationship of the IEEE8021-DDCFM to other MIB modules 17.3.10 Relationship of the IEEE8021-PBBTE-MIB to other MIB modules 17.3.11 Relationship of the TPMR MIB to other MIB modules
606	17.3.12 Relationship of the IEEE8021-FQTSS-MIB to other MIB modules 17.3.13 Relationship of the IEEE802-CN-MIB to other MIB modules 17.3.14 Relationship of the IEEE8021-SRP-MIB to other MIB modules 17.3.15 Relationship of the IEEE8021-MVRPX-MIB to other MIB modules
607	17.3.16 Relationship of the IEEE8021-MIRP-MIB to other MIB modules 17.3.17 Relationship of the PFC MIB to other MIB modules 17.3.18 Relationship of the IEEE8021-TEIPS-MIB to other MIB modules 17.3.19 Relationship of the of the IEEE8021-SPB-MIB to other MIB modules 17.3.20 Relationship of the IEEE8021-EVB-MIB to other MIB modules 17.3.21 Relationship of the of the IEEE8021-ECMP-MIB to other MIB modules
608	17.4 Security considerations 17.4.1 Security considerations of the IEEE8021-TC-MIB 17.4.2 Security considerations of the IEEE8021-BRIDGE-MIB
609	17.4.3 Security considerations of the IEEE8021-SPANNING-TREE MIB
610	17.4.4 Security considerations of the IEEE8021-Q-BRIDGE-MIB
611	17.4.5 Security considerations of the IEEE8021-PB-MIB 17.4.6 Security considerations of the IEEE8021-MSTP-MIB 17.4.7 Security considerations of the IEEE8021-CFM-MIB
614	17.4.8 Security considerations of the IEEE8021-PBB-MIB 17.4.9 Security considerations of the IEEE8021-DDCFM-MIB
615	17.4.10 Security considerations of the IEEE8021-PBBTE-MIB
616	17.4.11 Security considerations of the TPMR MIB 17.4.12 Security considerations of the IEEE8021-FQTSS-MIB
617	17.4.13 Security considerations of the Congestion Notification MIB
618	17.4.14 Security considerations of the IEEE8021-SRP-MIB
619	17.4.15 Security considerations of the IEEE8021-MVRPX-MIB 17.4.16 Security considerations of the IEEE8021-MIRP-MIB
620	17.4.17 Security considerations for the PFC MIB 17.4.18 Security considerations of the IEEE8021-TEIPS-MIB 17.4.19 Security considerations of the IEEE8021-SPB-MIB
621	17.4.20 Security considerations of the IEEE8021-EVB-MIB
622	17.4.21 Security considerations of the IEEE8021-ECMP-MIB
623	17.5 Dynamic component and Port creation 17.5.1 Overview of the dynamically created Bridge entities
624	17.5.2 Component creation
625	17.5.3 Port creation
635	17.6 MIB operations for service interface configuration 17.6.1 Provisioning PBN service interfaces
638	17.6.2 Provisioning Backbone Bridged Network service interfaces
644	17.7 MIB modules, 17.7.1 Definitions for the IEEE8021-TC-MIB module
655	17.7.2 Definitions for the IEEE8021-BRIDGE-MIB module
695	17.7.3 Definitions for the IEEE8021-SPANNING-TREE-MIB module
713	17.7.4 Definitions for the IEEE8021-Q-BRIDGE-MIB module
759	17.7.5 Definitions for the IEEE8021-PB-MIB module
777	17.7.6 Definitions for the IEEE8021-MSTP-MIB module
806	17.7.7 Definitions for the CFM MIB modules
888	17.7.8 Definitions for the IEEE8021-PBB-MIB module
911	17.7.9 Definitions for the IEEE8021-DDCFM-MIB module
929	17.7.10 Definitions for the IEEE8021-PBBTE-MIB module
946	17.7.11 Definitions for the IEEE8021-TPMR-MIB module
960	17.7.12 Definitions for the IEEE8021-FQTSS-MIB module
971	17.7.13 Definitions for the IEEE8021-CN-MIB module
1007	17.7.14 Definitions for the IEEE8021-SRP-MIB module
1023	17.7.15 Definitions for the IEEE8021-MVRPX-MIB module
1028	17.7.16 Definitions for the IEEE8021-MIRP-MIB module
1034	17.7.17 Definitions for the IEEE8021-PFC-MIB module
1038	17.7.18 Definitions for the IEEE8021-TEIPS-V2-MIB module
1052	17.7.19 Definitions for the IEEE8021-SPB-MIB module
1089	17.7.20 Definitions for the IEEE8021-EVB-MIB module
1118	17.7.21 Definitions for the IEEE8021-ECMP-MIB module
1126	18. Principles of Connectivity Fault Management operation
1127	18.1 Maintenance Domains and DoSAPs
1129	18.2 Service instances and MAs
1130	18.3 Maintenance Domain Levels
1134	19. CFM entity operation 19.1 Maintenance Points
1135	19.2 MA Endpoints (MEPs) 19.2.1 MEP identification
1136	19.2.2 MEP functions 19.2.3 MEP architecture
1138	19.2.4 MP Type Demultiplexer 19.2.5 MP Multiplexer 19.2.6 MP Level Demultiplexer 19.2.7 MP OpCode Demultiplexer
1139	19.2.8 MEP Continuity Check Receiver 19.2.9 MEP Continuity Check Initiator
1140	19.2.10 MP Loopback Responder 19.2.11 MEP Loopback Initiator 19.2.12 MEP Linktrace Initiator 19.2.13 MEP LTI SAP 19.2.14 MEP Linktrace SAP 19.2.15 MEP CCM Database 19.2.16 MEP Fault Notification Generator
1141	19.2.17 MEP Decapsulator Responder (DR) 19.2.18 MEP RFM Receiver 19.3 MIP Half Function 19.3.1 MHF identification 19.3.2 MHF functions
1142	19.3.3 MHF architecture 19.3.4 MHF Level Demultiplexer 19.3.5 MHF Type Demultiplexer 19.3.6 MHF OpCode Demultiplexer 19.3.7 MHF Multiplexer 19.3.8 MHF Loopback Responder
1143	19.3.9 MHF Continuity Check Receiver 19.3.10 MIP CCM Database
1144	19.3.11 MHF Linktrace SAP 19.3.12 MHF DR 19.3.13 MHF RFM Receiver 19.4 MP addressing
1145	19.5 Linktrace Output Multiplexer (LOM) 19.6 Linktrace Responder
1147	20. CFM protocols
1148	20.1 Continuity Check protocol
1150	20.1.1 MAC status reporting in the CCM 20.1.2 Defects and Fault Alarms
1151	20.1.3 CCM reception 20.2 Loopback protocol
1152	20.2.1 LBM transmission 20.2.2 LBM reception and LBR transmission
1153	20.2.3 LBR reception 20.3 Linktrace protocol
1154	20.3.1 LTM origination
1155	20.3.2 LTM reception, forwarding, and replying
1156	20.3.3 LTR reception
1157	20.4 CFM state machines 20.5 CFM state machine timers
1159	20.5.1 LTFwhile 20.5.2 CCIwhile 20.5.3 errorCCMwhile 20.5.4 xconCCMwhile 20.5.5 LBIwhile 20.5.6 FNGwhile 20.5.7 mmCCMwhile 20.5.8 mmLocwhile 20.5.9 mmFNGwhile 20.5.10 rMEPwhile
1160	20.6 CFM procedures 20.6.1 CCMtime() 20.7 Maintenance Domain variable 20.7.1 mdLevel 20.8 MA variables 20.8.1 CCMinterval 20.9 MEP variables
1161	20.9.1 MEPactive 20.9.2 enableRmepDefect
1162	20.9.3 MAdefectIndication 20.9.4 allRMEPsDead 20.9.5 lowestAlarmPri 20.9.6 presentRDI 20.9.7 MEPprimaryVID 20.9.8 presentTraffic 20.9.9 presentmmLoc
1163	20.9.10 ISpresentTraffic 20.9.11 ISpresentmmLoc 20.9.12 EpMEP 20.10 MEP Continuity Check Initiator variables 20.10.1 CCIenabled 20.10.2 CCIsentCCMs 20.10.3 MACstatusChanged 20.10.4 Npaths
1164	20.10.5 flowHash[ ] 20.10.6 pathN 20.10.7 CCMcnt 20.11 MEP Continuity Check Initiator procedures 20.11.1 xmitCCM()
1165	20.12 MEP Continuity Check Initiator state machine 20.13 MHF Continuity Check Receiver variables
1166	20.13.1 MHFrecvdCCM 20.13.2 MHFCCMPDU 20.14 MHF Continuity Check Receiver procedures 20.14.1 MHFprocessCCM() 20.15 MHF Continuity Check Receiver state machine 20.16 MEP Continuity Check Receiver variables
1167	20.16.1 CCMreceivedEqual 20.16.2 CCMequalPDU 20.16.3 CCMreceivedLow 20.16.4 CCMlowPDU 20.16.5 recvdMacAddress 20.16.6 recvdRDI 20.16.7 recvdInterval
1168	20.16.8 recvdPortState 20.16.9 recvdInterfaceStatus 20.16.10 recvdSenderId 20.16.11 recvdFrame 20.16.12 CCMsequenceErrors 20.16.13 rcvdTrafficBit 20.17 MEP Continuity Check Receiver procedures 20.17.1 MEPprocessEqualCCM()
1169	20.17.2 MEPprocessLowCCM() 20.18 MEP Continuity Check Receiver state machine
1170	20.19 Remote MEP variables 20.19.1 rMEPCCMdefect 20.19.2 rMEPlastRDI and rMEPlastRDI[i]
1171	20.19.3 rMEPlastPortState 20.19.4 rMEPlastInterfaceStatus 20.19.5 rMEPlastSenderId 20.19.6 rCCMreceived 20.19.7 rMEPmacAddress 20.19.8 rMEPportStatusDefect 20.19.9 rMEPinterfaceStatusDefect 20.19.10 lastPathN
1172	20.20 Remote MEP state machine 20.21 Remote MEP Error variables
1173	20.21.1 errorCCMreceived 20.21.2 errorCCMlastFailure 20.21.3 errorCCMdefect 20.22 Remote MEP Error state machine 20.23 MEP Cross Connect variables
1174	20.23.1 xconCCMreceived 20.23.2 xconCCMlastFailure 20.23.3 xconCCMdefect 20.24 MEP Cross Connect state machine
1175	20.25 MEP Mismatch variables 20.25.1 mmCCMreceived 20.25.2 mmCCMdefect 20.25.3 mmCCMTime 20.25.4 disableLocdefect 20.25.5 mmLocdefect
1176	20.26 MEP Mismatch state machines
1177	20.27 MP Loopback Responder variables 20.27.1 LBMreceived 20.27.2 LBMPDU 20.28 MP Loopback Responder procedures 20.28.1 ProcessLBM()
1178	20.28.2 xmitLBR() 20.29 MP Loopback Responder state machine
1179	20.30 MEP Loopback Initiator variables 20.30.1 LBMsToSend 20.30.2 nextLBMtransID 20.30.3 expectedLBRtransID 20.30.4 LBIactive 20.30.5 xmitReady 20.30.6 LBRreceived 20.30.7 LBRPDU
1180	20.31 MEP Loopback Initiator transmit procedures 20.31.1 xmitLBM()
1181	20.32 MEP Loopback Initiator transmit state machine 20.33 MEP Loopback Initiator receive procedures 20.33.1 ProcessLBR()
1182	20.34 MEP Loopback Initiator receive state machine 20.35 MEP Fault Notification Generator variables 20.35.1 fngPriority
1183	20.35.2 fngDefect 20.35.3 fngAlarmTime 20.35.4 fngResetTime 20.35.5 someRMEPCCMdefect 20.35.6 someMACstatusDefect 20.35.7 someRDIdefect 20.35.8 highestDefectPri 20.35.9 highestDefect
1184	20.36 MEP Fault Notification Generator procedures 20.36.1 xmitFaultAlarm() 20.37 MEP Fault Notification Generator state machine
1185	20.38 MEP Mismatch Fault Notification Generator variables 20.38.1 mfngAllowed 20.38.2 mmdefectIndication 20.38.3 mfngAlarmTime 20.38.4 mfngResetTime 20.39 MEP Mismatch Fault Notification Generator procedures 20.39.1 xmitFaultAlarm()
1186	20.40 MEP Mismatch Fault Notification Generator state machine 20.41 MEP Linktrace Initiator variables 20.41.1 nextLTMtransID
1187	20.41.2 ltmReplyList
1188	20.42 MEP Linktrace Initiator procedures
1189	20.42.1 xmitLTM() 20.43 MEP Linktrace Initiator receive variables 20.43.1 LTRreceived
1190	20.43.2 LTRPDU 20.44 MEP Linktrace Initiator receive procedures 20.44.1 ProcessLTR() 20.45 MEP Linktrace Initiator receive state machine
1191	20.46 Linktrace Responder variables 20.46.1 nPendingLTRs 20.46.2 LTMreceived 20.46.3 LTMPDU 20.47 LTM Receiver procedures 20.47.1 ProcessLTM()
1195	20.47.2 clearPendingLTRs()
1196	20.47.3 ForwardLTM() 20.47.4 enqueLTR()
1198	20.48 LTM Receiver state machine 20.49 LTR Transmitter procedure 20.49.1 xmitOldestLTR() 20.50 LTR Transmitter state machine
1199	20.51 CFM PDU validation and versioning 20.51.1 Goals of CFM PDU versioning 20.51.2 PDU transmission
1200	20.51.3 PDU validation 20.51.4 Validation pass
1201	20.51.5 Execution pass
1202	20.51.6 Future extensions 20.52 PDU identification
1203	20.53 Use of transaction IDs and sequence numbers
1204	21. Encoding of CFM PDUs 21.1 Structure, representation, and encoding 21.2 CFM encapsulation
1205	21.3 CFM request and indication parameters 21.3.1 destination_address parameter 21.3.2 source_address parameter
1206	21.4 Common CFM Header 21.4.1 MD Level 21.4.2 Version 21.4.3 OpCode
1207	21.4.4 Flags 21.4.5 First TLV Offset 21.5 TLV format 21.5.1 General format for CFM TLVs
1208	21.5.2 Organization-Specific TLV
1209	21.5.3 Sender ID TLV
1211	21.5.4 Port Status TLV 21.5.5 Interface Status TLV
1212	21.5.6 Data TLV 21.5.7 End TLV
1213	21.6 CCM format 21.6.1 Flags
1214	21.6.2 First TLV Offset 21.6.3 Sequence Number
1215	21.6.4 Maintenance association Endpoint Identifier 21.6.5 Maintenance Association Identifier
1217	21.6.6 Defined by ITU-T Y.1731 (02/2008) 21.6.7 Optional CCM TLVs
1218	21.7 LBM and LBR formats 21.7.1 Flags 21.7.2 First TLV Offset 21.7.3 Loopback Transaction Identifier 21.7.4 Additional LBM/LBR TLVs
1219	21.7.5 PBB-TE MIP TLV
1220	21.8 LTM format 21.8.1 Flags 21.8.2 First TLV Offset 21.8.3 LTM Transaction Identifier
1221	21.8.4 LTM TTL 21.8.5 Original MAC Address 21.8.6 Target MAC Address 21.8.7 Additional LTM TLVs 21.8.8 LTM Egress Identifier TLV
1222	21.9 LTR format 21.9.1 Flags
1223	21.9.2 First TLV Offset 21.9.3 LTR Transaction Identifier 21.9.4 Reply TTL 21.9.5 Relay Action 21.9.6 Additional LTR TLVs
1224	21.9.7 LTR Egress Identifier TLV 21.9.8 Reply Ingress TLV
1225	21.9.9 Reply Egress TLV
1228	22. CFM in systems 22.1 CFM shims in Bridges 22.1.1 Preliminary positioning of MPs
1229	22.1.2 CFM and the Forwarding Process
1231	22.1.3 Up/Down separation of MPs
1233	22.1.4 Service instances over multiple Bridges
1235	22.1.5 Multiple VID service instances 22.1.6 Untagged CFM PDUs 22.1.7 MPs and non-VLAN aware Bridges
1236	22.1.8 MPs and other standards
1238	22.1.9 CFM and IEEE 802.3-2012 Clause 57 OAM 22.2 Maintenance Entity creation
1239	22.2.1 Creating Maintenance Domains and MAs 22.2.2 Creating MEPs
1241	22.2.3 Creating MIPs
1242	22.2.4 CFM configuration errors
1243	22.3 MPs, Ports, and MD Level assignment 22.4 Stations and CFM
1244	22.5 Scalability of CFM
1245	22.6 CFM in Provider Bridges 22.6.1 MPs and C-VLAN components
1246	22.6.2 Maintenance C-VLAN on a Port-based service interface
1247	22.6.3 Maintenance C-VLAN on a C-tagged service interface 22.6.4 MPs and Port-mapping S-VLAN components
1249	22.7 Management Port MEPs and CFM in the enterprise environment
1250	22.8 Implementing CFM on Bridges that implement earlier revisions of IEEE Std 802.1Q
1252	23. MAC status propagation
1253	23.1 Model of operation
1254	23.1.1 MAC Status Shim (MSS)
1255	23.1.2 Relationship of CFM to the MSS 23.2 MAC Status Protocol (MSP) overview
1260	23.3 MSP state machines
1261	23.4 State machine timers 23.4.1 linkNotifyWhen 23.4.2 linkNotifyWhile 23.4.3 macNotifyWhile 23.4.4 macRecoverWhile 23.5 MSP performance parameters
1262	23.5.1 LinkNotify 23.5.2 LinkNotifyWait 23.5.3 LinkNotifyRetry 23.5.4 MACNotify 23.5.5 MACNotifyTime 23.5.6 MACRecoverTime 23.6 State machine variables 23.6.1 BEGIN 23.6.2 addConfirmed 23.6.3 disableMAC 23.6.4 disabledMAC
1263	23.6.5 disableMSS 23.6.6 lossConfirmed 23.6.7 macOperational 23.6.8 mssOperational 23.6.9 prop 23.6.10 rxAck 23.6.11 rxAdd 23.6.12 rxAddConfirm 23.6.13 rxLoss 23.6.14 rxLossConfirm 23.6.15 txAck 23.6.16 txAdd
1264	23.6.17 txAddConfirm 23.6.18 txLoss 23.6.19 txLossConfirm 23.7 State machine procedures 23.8 Status Transition state machine (STM)
1265	23.9 Status Notification state machine (SNM) 23.10 Receive Process 23.11 Transmit Process 23.12 Management of MSP
1266	23.13 MSPDU transmission, addressing, and protocol identification 23.13.1 Destination MAC Address 23.13.2 Source MAC Address
1267	23.13.3 Priority 23.13.4 EtherType use and encoding 23.14 Representation and encoding of octets 23.15 MSPDU structure
1268	23.15.1 Protocol Version 23.15.2 Packet Type 23.16 Validation of received MSPDUs 23.17 Other MSP participants
1269	24. Bridge performance 24.1 Guaranteed Port Filtering Rate 24.2 Guaranteed Bridge Relaying Rate 24.3 RSTP performance requirements
1271	25. Support of the MAC Service by PBBNs
1273	25.1 Service transparency 25.2 Customer service interface
1274	25.3 Port-based service interface
1275	25.4 S-tagged service interface
1277	25.5 I-tagged service interface
1279	25.6 Service instance segregation 25.7 Service instance selection and identification
1280	25.8 Service priority and drop eligibility selection 25.9 Service access protection
1282	25.9.1 Class II redundant LANs access protection
1283	25.9.2 Class III simple redundant LANs and nodes access protection
1284	25.10 Support of the MAC Service by a PBB-TE Region
1285	25.10.1 Provisioning TESIs
1286	25.10.2 ESP forwarding behavior
1287	25.11 Transparent service interface
1289	26. Principles of Provider Backbone Bridged Network (PBBN) operation 26.1 PBBN overview
1290	26.2 PBBN example
1292	26.3 B-VLAN connectivity
1293	26.4 Backbone addressing
1294	26.4.1 Learning individual backbone addresses at a PIP 26.4.2 Translating backbone destination addresses at a CBP
1295	26.4.3 Backbone addressing considerations for CFM MPs 26.5 Detection of connectivity loops through attached networks 26.6 Scaling of PBBs
1296	26.6.1 Hierarchal PBBNs 26.6.2 Peer PBBNs 26.7 Network management
1297	26.8 CFM in PBBs
1302	26.8.1 CFM over Port-based and S-tagged service interfaces
1303	26.8.2 CFM over I-tagged Service Interfaces 26.8.3 CFM over hierarchal E-NNI 26.8.4 CFM over peer E-NNI
1304	26.9 CFM in a PBB-TE Region 26.9.1 Addressing PBB-TE MEPs
1305	26.9.2 TESI identification 26.9.3 PBB-TE MEP placement in a Bridge Port 26.9.4 PBB-TE MIP placement in a Bridge Port 26.9.5 TESI Maintenance Domains
1306	26.9.6 PBB-TE enhancements of the CFM protocols
1308	26.9.7 Addressing Infrastructure Segment MEPs 26.9.8 Infrastructure Segment identification
1309	26.9.9 Infrastructure Segment MEP placement in a Bridge Port 26.9.10 Infrastructure Segment Maintenance Domains 26.9.11 IPS extensions to Continuity Check operation
1311	26.10 Protection switching for point-to-point TESIs 26.10.1 Introduction
1312	26.10.2 1:1 point-to-point TESI protection switching
1315	26.10.3 Protection Switching state machines
1320	26.11 IPS in PBB-TE Region
1321	26.11.1 Infrastructure Segment monitoring
1322	26.11.2 1:1 IPS
1325	26.11.3 IPS Control entity
1326	26.11.4 1:1 IPS state machines 26.11.5 M:1 IPS
1332	26.12 Mismatch defect
1333	26.13 Signaling VLAN registrations among I-components
1334	27. Shortest Path Bridging (SPB)
1336	27.1 Protocol design requirements
1337	27.2 Protocol support
1338	27.3 Protocol design goals 27.4 ISIS-SPB VLAN configuration
1340	27.4.1 SPT Region and ISIS-SPB adjacency determination
1341	27.5 ISIS-SPB information
1342	27.6 Calculating CIST connectivity
1343	27.7 Connectivity between regions in the same domain 27.8 Calculating SPT connectivity
1344	27.8.1 ISIS-SPB overload 27.9 Loop prevention
1345	27.10 SPVID and SPSourceID allocation
1346	27.11 Allocation of VIDs to FIDs
1347	27.12 SPBV SPVID translation 27.13 VLAN topology management
1348	27.14 Individual addresses and SPBM
1349	27.14.1 Loop mitigation 27.14.2 Loop prevention
1350	27.15 SPBM group addressing
1351	27.16 Backbone service instance topology management
1352	27.17 Equal cost shortest paths, ECTs, and load spreading 27.18 Connectivity Fault Management for SPBM
1353	27.18.1 SPBM MA types 27.18.2 SPBM MEP placement in a Bridge Port 27.18.3 SPBM MIP placement in a Bridge Port
1354	27.18.4 SPBM modifications of the CFM protocols
1355	27.19 Using SPBV and SPBM modes 27.19.1 Shortest Path Bridging—VID
1357	27.19.2 Shortest Path Bridging—MAC
1359	27.20 Security considerations
1360	28. ISIS-SPB Link State Protocol 28.1 ISIS-SPB control plane MAC
1361	28.2 Formation and maintenance of ISIS-SPB adjacencies
1362	28.3 Loop prevention 28.4 The Agreement Digest
1363	28.4.1 Agreement Digest Format Identifier 28.4.2 Agreement Digest Format Capabilities 28.4.3 Agreement Digest Convention Identifier
1364	28.4.4 Agreement Digest Convention Capabilities 28.4.5 Agreement Digest Edge Count 28.4.6 The Computed Topology Digest
1365	28.5 Symmetric shortest path tie breaking
1366	28.6 Symmetric ECT framework
1367	28.7 Symmetric ECT
1368	28.8 ECT Algorithm details
1369	28.9 ECT Migration
1370	28.9.1 Use of a new ECT Algorithm in SPBV 28.9.2 Use of a new ECT Algorithm in SPBM
1371	28.10 MAC address registration 28.11 Circuit IDs and Port Identifiers
1372	28.12 ISIS-SPB TLVs 28.12.1 MT-Capability TLV
1373	28.12.2 SPB MCID sub-TLV 28.12.3 SPB Digest sub-TLV
1374	28.12.4 SPB Base VLAN-Identifiers sub-TLV
1375	28.12.5 SPB Instance sub-TLV
1377	28.12.6 SPB Instance Opaque ECT Algorithm sub-TLV
1378	28.12.7 SPB Link Metric sub-TLV
1379	28.12.8 SPB Adjacency Opaque ECT Algorithm sub-TLV 28.12.9 SPBV MAC address sub-TLV
1381	28.12.10 SPBM Service Identifier and Unicast Address (ISID-ADDR) sub-TLV
1384	29. DDCFM operations and protocols 29.1 Principles of DDCFM operation 29.1.1 Data-driven and data-dependent faults (DDFs) 29.1.2 Basic principle to diagnose and isolate DDFs
1387	29.2 DDCFM Entity operation 29.2.1 DDCFM implementation
1388	29.2.2 FPT RR
1389	29.2.3 RR-related parameters
1390	29.2.4 Reflection Target and RFM Receiver 29.2.5 RPT-related parameters
1391	29.2.6 Decapsulator Responder (DR)
1392	29.2.7 SFM Originator 29.3 DDCFM protocols 29.3.1 RR variables
1394	29.3.2 RR Filter procedures
1395	29.3.3 RR Encapsulation procedures
1396	29.3.4 RR Transmit procedure
1397	29.3.5 RR-related state machines
1399	29.3.6 RFM Receiver variables 29.3.7 RFM Receiver procedure
1400	29.3.8 DR variables
1401	29.3.9 DR procedures
1402	29.3.10 Decapsulator Responder state machine 29.4 Encoding of DDCFM PDUs 29.4.1 RFM and SFM Header
1403	29.4.2 RFM format
1404	29.4.3 SFM format
1406	30. Principles of congestion notification 30.1 Congestion notification design requirements
1408	30.2 Quantized Congestion Notification protocol (QCN)
1409	30.2.1 The CP algorithm
1410	30.2.2 Basic RP algorithm
1411	30.2.3 RP algorithm with timer
1412	30.3 Congestion Controlled Flow (CCF)
1413	30.4 Congestion Notification Priority Value (CNPV) 30.5 Congestion Notification tag (CN-TAG) 30.6 Congestion Notification Domain (CND)
1414	30.7 Multicast data 30.8 Congestion notification and additional tags
1416	31. Congestion notification entity operation 31.1 Congestion aware Bridge Forwarding Process
1417	31.1.1 Congestion Point (CP) 31.1.2 CP ingress multiplexer 31.2 Congestion aware end station functions
1418	31.2.1 Output flow segregation
1419	31.2.2 Per-CNPV station function
1421	31.2.3 Flow Select Database 31.2.4 Flow multiplexer 31.2.5 CNM demultiplexer 31.2.6 Input flow segregation
1422	31.2.7 End station input queue 31.2.8 Reception selection
1423	32. Congestion notification protocol 32.1 CND operations 32.1.1 CND defense
1425	32.1.2 Automatic CND recognition 32.1.3 Variables controlling CND defense
1426	32.2 CN component variables
1427	32.2.1 cngMasterEnable 32.2.2 cngCnmTransmitPriority 32.2.3 cngDiscardedFrames 32.2.4 cngErroredPortList 32.3 Congestion notification per-CNPV variables 32.3.1 cncpDefModeChoice
1428	32.3.2 cncpAlternatePriority 32.3.3 cncpAutoAltPri 32.3.4 cncpAdminDefenseMode 32.3.5 cncpCreation 32.3.6 cncpLldpInstanceChoice 32.3.7 cncpLldpInstanceSelector
1429	32.4 CND defense per-Port per-CNPV variables 32.4.1 cnpdDefModeChoice 32.4.2 cnpdAdminDefenseMode
1430	32.4.3 cnpdAutoDefenseMode 32.4.4 cnpdLldpInstanceChoice 32.4.5 cnpdLldpInstanceSelector 32.4.6 cnpdAlternatePriority 32.4.7 cnpdXmitCnpvCapable 32.4.8 cnpdXmitReady
1431	32.4.9 cncpDoesEdge 32.4.10 cnpdAcceptsCnTag 32.4.11 cnpdRcvdCnpv 32.4.12 cnpdRcvdReady 32.4.13 cnpdIsAdminDefMode
1432	32.4.14 cnpdDefenseMode 32.5 CND defense procedures 32.5.1 DisableCnpvRemapping() 32.5.2 TurnOnCnDefenses() 32.5.3 TurnOffCnDefenses() 32.6 CND defense state machine
1433	32.7 Congestion notification protocol
1434	32.8 CP variables
1435	32.8.1 cpMacAddress 32.8.2 cpId 32.8.3 cpQSp 32.8.4 cpQLen 32.8.5 cpQLenOld 32.8.6 cpW 32.8.7 cpQOffset 32.8.8 cpQDelta 32.8.9 cpFb
1436	32.8.10 cpEnqued 32.8.11 cpSampleBase 32.8.12 cpDiscardedFrames 32.8.13 cpTransmittedFrames 32.8.14 cpTransmittedCnms 32.8.15 cpMinHeaderOctets 32.9 CP procedures 32.9.1 Random 32.9.2 NewCpSampleBase()
1437	32.9.3 EM_UNITDATA.request (parameters) 32.9.4 GenerateCnmPdu()
1438	32.10 RP per-Port per-CNPV variables 32.10.1 rpppMaxRps 32.10.2 rpppCreatedRps
1439	32.10.3 rpppRpCentiseconds 32.11 RP group variables 32.11.1 rpgEnable 32.11.2 rpgTimeReset 32.11.3 rpgByteReset
1440	32.11.4 rpgThreshold 32.11.5 rpgMaxRate 32.11.6 rpgAiRate 32.11.7 rpgHaiRate 32.11.8 rpgGd 32.11.9 rpgMinDecFac 32.11.10 rpgMinRate 32.12 RP timer
1441	32.12.1 RpWhile 32.13 RP variables 32.13.1 rpEnabled 32.13.2 rpByteCount 32.13.3 rpByteStage 32.13.4 rpTimeStage 32.13.5 rpTargetRate
1442	32.13.6 rpCurrentRate 32.13.7 rpFreeze 32.13.8 rpLimiterRate 32.13.9 rpFb 32.14 RP procedures 32.14.1 ResetCnm
1443	32.14.2 TestRpTerminate 32.14.3 TransmitDataFrame 32.14.4 ReceiveCnm
1444	32.14.5 ProcessCnm 32.14.6 AdjustRates 32.15 RP rate control state machine
1446	32.16 Congestion notification and encapsulation interworking function
1448	33. Encoding of congestion notification PDUs 33.1 Structure, representation, and encoding 33.2 CN-TAG format
1449	33.2.1 Flow Identifier 33.3 Congestion Notification Message (CNM)
1450	33.4 Congestion Notification Message PDU format 33.4.1 Version 33.4.2 ReservedV
1451	33.4.3 Quantized Feedback 33.4.4 Congestion Point Identifier 33.4.5 cnmQOffset 33.4.6 cnmQDelta 33.4.7 Encapsulated priority 33.4.8 Encapsulated destination MAC address 33.4.9 Encapsulated MSDU length 33.4.10 Encapsulated MSDU
1452	33.4.11 CNM Validation
1453	34. Forwarding and Queuing Enhancements for time-sensitive streams (FQTSS) 34.1 Overview 34.2 Detection of SRP domains
1454	34.3 The bandwidth availability parameters 34.3.1 Relationships among bandwidth availability parameters
1455	34.3.2 Bandwidth availability parameter management 34.4 Deriving actual bandwidth requirements from the size of the MSDU
1456	34.5 Mapping priorities to traffic classes for time-sensitive streams
1458	34.6 End station behavior 34.6.1 Talker behavior
1459	34.6.2 Listener behavior
1460	35. Stream Reservation Protocol (SRP)
1461	35.1 Multiple Stream Registration Protocol (MSRP)
1462	35.1.1 MSRP and Shared Media 35.1.2 Behavior of end stations
1464	35.1.3 Behavior of Bridges 35.1.4 SRP domains and status parameters 35.2 Definition of the MSRP application
1465	35.2.1 Definition of internal state variables
1467	35.2.2 Definition of MRP elements
1477	35.2.3 Provision and support of Stream registration service
1481	35.2.4 MSRP Attribute Propagation
1486	35.2.5 Operational reporting and statistics 35.2.6 Encoding
1487	35.2.7 Attribute value support requirements
1488	36. Priority-based Flow Control (PFC) 36.1 PFC operation 36.1.1 Overview
1489	36.1.2 PFC primitives
1490	36.1.3 Detailed specification of PFC operation
1491	36.2 PFC aware system queue functions
1492	36.2.1 PFC Initiator 36.2.2 PFC Receiver
1494	37. Enhanced Transmission Selection (ETS) 37.1 Overview 37.1.1 Relationship to other transmission selection algorithms 37.2 ETS configuration parameters 37.3 ETS algorithm
1495	37.4 Legacy configuration
1496	38. Data Center Bridging eXchange protocol (DCBX) 38.1 Overview 38.2 Goals 38.3 Types of DCBX attributes 38.3.1 Informational attributes 38.4 DCBX and LLDP
1497	38.4.1 Asymmetric attribute passing
1498	38.4.2 Symmetric attribute passing
1500	39. Multiple I-SID Registration Protocol (MIRP) 39.1 MIRP overview
1502	39.1.1 Behavior of I-components 39.1.2 Behavior of B-components 39.2 Definition of the MIRP application 39.2.1 Definition of MRP elements
1505	39.2.2 Alternate MIRP model for B-components
1507	39.2.3 Use of “new” declaration capability 39.2.4 Attribute value support requirements 39.2.5 MRP Message filtering
1508	40. Edge Virtual Bridging (EVB)
1509	40.1 EVB architecture without S-channels
1510	40.2 EVB architecture with S-channels
1512	40.3 Asymmetric EVB architecture without S-channels 40.4 EVB status parameters
1514	40.4.1 EVBMode = Not supported 40.4.2 EVBMode = EVB Bridge 40.4.3 EVBMode = EVB station
1515	41. VSI Discovery and Configuration Protocol (VDP) 41.1 VSI manager ID TLV definition 41.1.1 TLV type 41.1.2 TLV information string length
1516	41.1.3 VSI Manager ID 41.2 VDP association TLV definitions 41.2.1 TLV type
1517	41.2.2 TLV information string length 41.2.3 Status
1518	41.2.4 VSI Type ID (VTID) 41.2.5 VSI Type Version 41.2.6 VSIID format 41.2.7 VSIID
1519	41.2.8 Filter Info format 41.2.9 Filter Info field
1521	41.2.10 VDP TLV type and Status semantics
1522	41.3 Organizationally defined TLV definitions
1523	41.3.1 TLV type 41.3.2 TLV information string length 41.3.3 Organizationally unique identifier (OUI) or Company ID (CID) 41.3.4 Organizationally defined information 41.4 Validation rules for VDP TLVs 41.5 VDP state machines 41.5.1 State machine conventions
1524	41.5.2 Bridge VDP state machine
1525	41.5.3 Station VDP state machine
1526	41.5.4 VDP state machine timers 41.5.5 VDP state machine variables and parameters
1529	41.5.6 Command-Response TLV field references in state machines 41.5.7 VDP state machine procedures
1531	42. S-Channel Discovery and Configuration Protocol (CDCP) 42.1 CDCP discovery and configuration 42.2 CDCP state machine overview
1532	42.3 CDCP configuration state machine
1533	42.4 CDCP configuration variables 42.4.1 AdminChnCap
1534	42.4.2 AdminRole 42.4.3 AdminSVIDWants 42.4.4 LastLocalSVIDPool 42.4.5 LastRemoteSVIDList 42.4.6 LastSVIDWants 42.4.7 LocalSVIDPool 42.4.8 OperChnCap 42.4.9 OperRole
1535	42.4.10 OperSVIDList 42.4.11 RemoteChnCap 42.4.12 RemoteRole 42.4.13 RemoteSVIDList 42.4.14 schState 42.5 CDCP configuration procedures 42.5.1 SetSVIDRequest (OperRole, AdminSVIDWants, OperSVIDList)
1536	42.5.2 RxSVIDConfig (OperSVIDList, LastRemoteSVIDList) 42.5.3 TxSVIDConfig (OperChnCap, RemoteChnCap, LastLocalSVIDPool, RemoteSVIDList, OperSVIDList)
1537	43. Edge Control Protocol (ECP) 43.1 ECP operation
1538	43.2 Edge Control Sublayer Service (ECSS) 43.3 ECP state machines 43.3.1 State machine conventions 43.3.2 Overview
1539	43.3.3 Edge Control Protocol Data Unit (ECPDU)
1540	43.3.4 ECP transmit state machine
1541	43.3.5 ECP receive state machine 43.3.6 ECP state machine timers
1542	43.3.7 ECP state machine variables and parameters
1543	43.3.8 ECP state machine procedures
1544	44. Equal Cost Multiple Paths (ECMP) 44.1 SPBM ECMP 44.1.1 ECMP Operation
1545	44.1.2 ECMP ECT Algorithm
1547	44.1.3 Loop prevention for ECMP 44.2 Support for Flow Filtering
1548	44.2.1 Flow filtering tag (F-TAG)
1549	44.2.2 F-TAG processing
1550	44.2.3 Forwarding process extension for flow filtering
1551	44.2.4 TTL Loop mitigation 44.2.5 CFM for ECMP with flow filtering
1553	44.2.6 Operation with selective support for flow filtering
1554	Annex A (normative) PICS proforma—Bridge implementations
1615	Annex B (normative) PICS proforma—End station implementations
1629	Annex C (normative) Designated MSRP Node (DMN) Implementations
1646	Annex D (normative) IEEE 802.1 Organizationally Specific TLVs
1754	Annex E (normative) Notational conventions used in state diagrams
1756	Annex F (informative) Shared and Independent VLAN Learning (SVL and IVL)
1765	Annex G (informative) MAC method-dependent aspects of VLAN support
1767	Annex H (informative) Interoperability considerations
1773	Annex I (informative) Priority and drop precedence
1781	Annex J (informative) CFM protocol design and use
1789	Annex K (informative) TPMR use cases
1794	Annex L (informative) Operation of the credit-based shaper algorithm
1811	Annex M (normative) Support for PFC in link layers without MAC Control
1812	Annex N (informative) Buffer requirements for PFC
1817	Annex O (informative) Preserving the integrity of FCS fields in MAC Bridges
1824	Annex P (informative) Frame duplication and misordering
1827	Annex Q (informative)
1832	Back cover