{"id":79265,"date":"2024-10-17T18:32:46","date_gmt":"2024-10-17T18:32:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-802-6-1991\/"},"modified":"2024-10-24T19:39:35","modified_gmt":"2024-10-24T19:39:35","slug":"ieee-802-6-1991","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-802-6-1991\/","title":{"rendered":"IEEE 802.6 1991"},"content":{"rendered":"

New IEEE Standard – Inactive – Withdrawn. Withdrawn Standard. Withdrawn Date: Feb 07, 2003. No longer endorsed by the IEEE. This standard is part of a family of standards for local area networks (LANs) and metropolitan area networks (MANs) that deal with the Physical and Data Link Layers as defined by the ISO Open Systems Interconnection Reference Model. It defines a high-speed shared medium access protocol for use over a dual, counterflowing, unidirectional bus subnetwork. The Physical Layer and Distributed Queue Dual Bus (DQDB) Layer are required to support a Logical Link Control (LLC) Sublayer by means of a connectionless Medium Access Control (MAC) Sublayer service in a manner consistent with other IEEE 902 networks. Additional DQDB Layer functions are specified as a framework for other services. These additional functions will support Isochronous Service Users and Connection-Oriented Data Service users, but their implementation is not required for conformance.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
21<\/td>\n1 Introduction
1.1 Scope <\/td>\n<\/tr>\n
22<\/td>\nScope of IEEE Std <\/td>\n<\/tr>\n
23<\/td>\n1.2 Applicability
1.3 Definitions <\/td>\n<\/tr>\n
31<\/td>\n1.4 Acronyms <\/td>\n<\/tr>\n
33<\/td>\n1.5 References <\/td>\n<\/tr>\n
34<\/td>\n1.6 Conformance <\/td>\n<\/tr>\n
35<\/td>\n1.7 Notation
Service Specification Method and Notation
Layer Service Model <\/td>\n<\/tr>\n
36<\/td>\nTime Sequence Diagram <\/td>\n<\/tr>\n
37<\/td>\n1.7.2 State Machine Notation
1.8 Organization of the Standard <\/td>\n<\/tr>\n
39<\/td>\nOverview
2.1 DQDB Subnetwork
Dual Bus Architecture <\/td>\n<\/tr>\n
40<\/td>\nDual Bus Architecture <\/td>\n<\/tr>\n
41<\/td>\nExample Access Unit Attachment <\/td>\n<\/tr>\n
42<\/td>\nAccess Control to the Dual Bus Subnetwork <\/td>\n<\/tr>\n
43<\/td>\nQueue Formation on Bus A <\/td>\n<\/tr>\n
47<\/td>\nQueueing for Access (Bus A) <\/td>\n<\/tr>\n
48<\/td>\nGaining Access (Bus A) <\/td>\n<\/tr>\n
50<\/td>\nProvision of DQDB Layer Services <\/td>\n<\/tr>\n
51<\/td>\nDQDB Layer Services <\/td>\n<\/tr>\n
52<\/td>\nIMPDU <\/td>\n<\/tr>\n
53<\/td>\nFormat of a DMPDU <\/td>\n<\/tr>\n
54<\/td>\nTransfer of an IMPDU <\/td>\n<\/tr>\n
58<\/td>\nPerformance of the Distributed Queue <\/td>\n<\/tr>\n
59<\/td>\nDQDB Subnetwork Configuration Control <\/td>\n<\/tr>\n
60<\/td>\nLooped Bus Topology <\/td>\n<\/tr>\n
61<\/td>\nNode Functional Architecture
Physical Layer Functions <\/td>\n<\/tr>\n
62<\/td>\nDQDB Node Functional Architecture <\/td>\n<\/tr>\n
63<\/td>\nDQDB Layer Functions <\/td>\n<\/tr>\n
67<\/td>\nDQDB Layer Service Definition <\/td>\n<\/tr>\n
68<\/td>\nMAC Service Provided to the LLC Sublayer
3.1.1 MA-UNITDATA request <\/td>\n<\/tr>\n
69<\/td>\n3.1.2 MA-UNITDATA indication <\/td>\n<\/tr>\n
70<\/td>\n3.1.3 MA-STATUS indication
3.2 Isochronous Service <\/td>\n<\/tr>\n
71<\/td>\n3.2.1 ISU-DATA request <\/td>\n<\/tr>\n
72<\/td>\n3.2.2 ISU-DATA indication
Connection-Oriented Data Service <\/td>\n<\/tr>\n
73<\/td>\nPhysical Layer Service Definition <\/td>\n<\/tr>\n
74<\/td>\n4.1 Ph-DATA request
Physical Layer Services (at each node) <\/td>\n<\/tr>\n
76<\/td>\n4.2 Ph-DATA indication <\/td>\n<\/tr>\n
77<\/td>\nindication primitives <\/td>\n<\/tr>\n
78<\/td>\nNode Not Performing Head of Bus Functions
Node Not Performing Head of Bus Functions <\/td>\n<\/tr>\n
79<\/td>\nNode Performing Head of Bus Functions
Node Not Performing Head of Bus Functions <\/td>\n<\/tr>\n
80<\/td>\nNode Performing Head of Bus A Function <\/td>\n<\/tr>\n
82<\/td>\nNode Performing Head of Bus B Function <\/td>\n<\/tr>\n
83<\/td>\n4.4 Ph-TIMING-SOURCE request
Node Performing Head of Bus A and Head of Bus B Functions <\/td>\n<\/tr>\n
84<\/td>\n4.5 Ph-TIMING-MARK indication <\/td>\n<\/tr>\n
85<\/td>\n4.6 Ph-STATUS indication <\/td>\n<\/tr>\n
87<\/td>\n5 DQDB Node Functional Description
Provision of MAC Service to LLC <\/td>\n<\/tr>\n
88<\/td>\nDQDB Node Functional Architecture <\/td>\n<\/tr>\n
89<\/td>\nMAC Convergence Function (MCF) Block
DQDB Layer Functions to Support LLC Service <\/td>\n<\/tr>\n
90<\/td>\nMCF Transmit Functions <\/td>\n<\/tr>\n
93<\/td>\nSegmentation of an IMPDU of Greater than 88 Octets Length <\/td>\n<\/tr>\n
95<\/td>\nBlock <\/td>\n<\/tr>\n
98<\/td>\nMCF Receive Functions <\/td>\n<\/tr>\n
99<\/td>\nReceive Interaction between QA Functions Block and MCF Block <\/td>\n<\/tr>\n
103<\/td>\nQueued Arbitrated (QA) Functions Block <\/td>\n<\/tr>\n
105<\/td>\nQA Functions Block Transmit Functions <\/td>\n<\/tr>\n
106<\/td>\nQA Functions Block <\/td>\n<\/tr>\n
109<\/td>\nCommon Functions Block <\/td>\n<\/tr>\n
110<\/td>\nQA Functions Block Receive Functions <\/td>\n<\/tr>\n
111<\/td>\nQA Functions Block <\/td>\n<\/tr>\n
113<\/td>\nMAC Sublayer Service Management Functions
Convergence Function Block <\/td>\n<\/tr>\n
114<\/td>\nProvision of Isochronous Service
Isochronous Convergence Function (ICF) Block <\/td>\n<\/tr>\n
115<\/td>\nDQDB Layer Functions to Support Isochronous Service <\/td>\n<\/tr>\n
116<\/td>\nDQDB Node Functional Architecture Showing ICF Block <\/td>\n<\/tr>\n
117<\/td>\nPre-Arbitrated (PA) Functions Block <\/td>\n<\/tr>\n
118<\/td>\nBlock <\/td>\n<\/tr>\n
119<\/td>\nFunctions Block <\/td>\n<\/tr>\n
120<\/td>\nPA Functions Block <\/td>\n<\/tr>\n
121<\/td>\nIsochronous Service Provider Management Functions
Provision of Other Services
Connection-Oriented Data Service <\/td>\n<\/tr>\n
122<\/td>\nService <\/td>\n<\/tr>\n
123<\/td>\nDQDB Node Functional Architecture Showing COCF Block <\/td>\n<\/tr>\n
124<\/td>\nBlock
COCF Block <\/td>\n<\/tr>\n
125<\/td>\n5.4 Common Functions
Functions Block <\/td>\n<\/tr>\n
126<\/td>\nOctets <\/td>\n<\/tr>\n
127<\/td>\nFunctional Data Path for the Common Functions Block
Fig <\/td>\n<\/tr>\n
128<\/td>\nCommon Functions Block <\/td>\n<\/tr>\n
129<\/td>\nQA Functions Block <\/td>\n<\/tr>\n
130<\/td>\nCommon Functions Block
PA Functions Block <\/td>\n<\/tr>\n
131<\/td>\nSubnetwork Configuration Control Function <\/td>\n<\/tr>\n
133<\/td>\nDefault Slot Generator Function <\/td>\n<\/tr>\n
134<\/td>\nValid Bus Identification at Start-up <\/td>\n<\/tr>\n
135<\/td>\nDefault Slot Generator Function <\/td>\n<\/tr>\n
138<\/td>\n5.4.3 Head of Bus Functions <\/td>\n<\/tr>\n
139<\/td>\nKey to Functional Data Path Diagrams
Fig <\/td>\n<\/tr>\n
140<\/td>\nFunction <\/td>\n<\/tr>\n
141<\/td>\nBus A Function <\/td>\n<\/tr>\n
142<\/td>\n5.4.4 MID Page Allocation Functions
Bus B Function <\/td>\n<\/tr>\n
143<\/td>\nHead of Bus B Functions <\/td>\n<\/tr>\n
150<\/td>\nDQDB Layer Protocol Data Unit (PDU) Formats
6.1 Ordering Principles
6.2 Slot
Access Control Field (ACF)
Slot Format
Fig
Access Control Field
Fig <\/td>\n<\/tr>\n
151<\/td>\nQueued Arbitrated (&A) Slot
REQUEST Field
Fig
Slot Access Control Field Codings <\/td>\n<\/tr>\n
152<\/td>\n6.3.1 QA Segment
QA Segment Format
Fig
QA Segment Header Fields
Fig <\/td>\n<\/tr>\n
153<\/td>\n6.4 Pre-Arbitrated (PA) Slot <\/td>\n<\/tr>\n
154<\/td>\n6.4.1 PA Segment
PA Segment Format
Fig
PA Segment Header Fields
Fig <\/td>\n<\/tr>\n
155<\/td>\n6.5 Transfer of MAC Service Data Unit (MSDU) <\/td>\n<\/tr>\n
156<\/td>\n6.5.1 Initial MAC Protocol Data Unit (IMPDU)
IMPDU Format
Fig
Common PDU Header Format
Fig <\/td>\n<\/tr>\n
158<\/td>\nAddress Field
Fig
Format
Fig
Coding of ADDRESS-TYPE Subfield <\/td>\n<\/tr>\n
160<\/td>\nPVPL Field Format
Fig <\/td>\n<\/tr>\n
161<\/td>\nQOS\/CIB\/HEL Field Format
Fig
Coding of the PI Field <\/td>\n<\/tr>\n
162<\/td>\nCoding of QOS-DELAY <\/td>\n<\/tr>\n
164<\/td>\nDerived MAC Protocol Data Unit (DMPDU)
Common PDU Trailer Format
Fig <\/td>\n<\/tr>\n
165<\/td>\nSegmentation of an IMPDU into DMPDUs
Fig <\/td>\n<\/tr>\n
166<\/td>\nDMPDU Format
Fig
DMPDU Header Format
DMPDU Type <\/td>\n<\/tr>\n
168<\/td>\nProtocol Data Unit (PDU) Hierarchy for MAC Service
DMPDU Trailer Format <\/td>\n<\/tr>\n
169<\/td>\n(a) MAC Connectionless Service PDU Hierarchy <\/td>\n<\/tr>\n
170<\/td>\n(b) MAC Connectionless Service PDU Hierarchy (continued;) <\/td>\n<\/tr>\n
171<\/td>\nAccess Control Field Conformance <\/td>\n<\/tr>\n
172<\/td>\nQueued Arbitrated Segment Conformance
Pre-Arbitrated Segment Conformance <\/td>\n<\/tr>\n
173<\/td>\nIMPDU Conformance <\/td>\n<\/tr>\n
174<\/td>\nDMPDU Conformance <\/td>\n<\/tr>\n
175<\/td>\nDQDB Layer Facilities
7.1 Timers
Reassembly IMPDU Timer (RIT) <\/td>\n<\/tr>\n
176<\/td>\nHead of Bus Arbitration Timer (Timer-H)
7.2 Counters
Request Counter (REQ-1-CNTR)
Countdown Counter (CD-I-CNTR) <\/td>\n<\/tr>\n
177<\/td>\nLocal Request Queue Counter (REQJ-Q)
Page Counter (PAGE-CNTR) <\/td>\n<\/tr>\n
178<\/td>\nBandwidth Balancing Counter (BWB-CNTR)
(TX-SEQUENCE-NUM)
7.3 System Parameters
Reassembly IMPDU Timer Period (RIT-PERIOD)
(Timer-H-PERIOD) <\/td>\n<\/tr>\n
179<\/td>\n7.3.3 Quality of Service Map (QOS-MAP)
(RESERVED-MID-PAGES)
Maximum Number of MID Pages (MAX-MID-PAGES)
Bandwidth Balancing Modulus (BWB-MOD) <\/td>\n<\/tr>\n
180<\/td>\n7.4 Flags
Configuration Control Flag (CC-12-CONTROL)
Default Configuration Control Flag (CC-D2-CONTROL)
CRC32 Generation Flag (CRC32-GEN-CONTROL) <\/td>\n<\/tr>\n
181<\/td>\nCRC32 Checking Flag (CRC32-CHECK-CONTROL)
Resource Status Indicators
Configuration Control Status Indicator (CC-STATUS) <\/td>\n<\/tr>\n
182<\/td>\nHead of Bus Operation Indicator (HOB-OPERATION)
Link Status Indicator (LINK-STATUS)
External Timing Source Status Indicator (ETS-STATUS) <\/td>\n<\/tr>\n
184<\/td>\n8 DQDB Layer Operation
8.1 Distributed Queue Operation
Distributed Queue State Machine (DQSM) <\/td>\n<\/tr>\n
186<\/td>\nDQSM for Bus x at Priority Level I L <\/td>\n<\/tr>\n
188<\/td>\n8.1.2 REQ Queue Machine (RQM) <\/td>\n<\/tr>\n
189<\/td>\nBandwidth Balancing Machine (BWBM) <\/td>\n<\/tr>\n
190<\/td>\n8.2 Reassembly Operation
Reassembly State Machine (RSM) <\/td>\n<\/tr>\n
192<\/td>\nInstance of Reassembly State Machine (RSM) <\/td>\n<\/tr>\n
196<\/td>\nSegment Header Check Sequence Processing
Functional Diagram for HCS Decoder <\/td>\n<\/tr>\n
197<\/td>\nHCS Decoder State Machine <\/td>\n<\/tr>\n
198<\/td>\nDQDB Layer Management Interface (LMI)
DQDB Layer Management Interface (LMI) Model <\/td>\n<\/tr>\n
199<\/td>\nDQDB LMI Primitives <\/td>\n<\/tr>\n
201<\/td>\nVCI Management Functions
9.2.1 LM-ACTION invoke (CL-VCI-ADD) <\/td>\n<\/tr>\n
203<\/td>\n9.2.2 LM-ACTION invoke (CL-VCI-DELETE) <\/td>\n<\/tr>\n
204<\/td>\nLM-ACTION invoke (OPEN-CE-ICF) <\/td>\n<\/tr>\n
206<\/td>\nLM-ACTION invoke (OPEN-CE-COCF) <\/td>\n<\/tr>\n
207<\/td>\nLM-ACTION invoke (CLOSE-CE) <\/td>\n<\/tr>\n
208<\/td>\nLM-ACTION invoke (PA-VCI-ADD-HOB) <\/td>\n<\/tr>\n
209<\/td>\nLM-ACTION invoke (PA-VCI-DELETE-HOB)
Header Extension Management Functions <\/td>\n<\/tr>\n
210<\/td>\nLM-ACTION invoke (HEXT-INSTAL) <\/td>\n<\/tr>\n
211<\/td>\nLM-ACTION invoke (NEXT-PURGE)
Message Identifier (MID) Management Functions <\/td>\n<\/tr>\n
212<\/td>\nLM-ACTION invoke (MID-PAGE-GET) <\/td>\n<\/tr>\n
213<\/td>\nLM-ACTION reply (MID-PAGE-GET)
LM-ACTION invoke (MID-PAGE-RELEASE) <\/td>\n<\/tr>\n
214<\/td>\nLM-ACTION reply (MID-PAGE-RELEASE) <\/td>\n<\/tr>\n
215<\/td>\nLM-EVENT notify (MID-PAGE-LOST)
9.5 Address Management Functions <\/td>\n<\/tr>\n
216<\/td>\n9.5.1 LM-ACTION invoke (ADDRESS-ADD)
9.5.2 LM-ACTION invoke (ADDRESS-DELETE) <\/td>\n<\/tr>\n
217<\/td>\nSystem Parameter Management Functions <\/td>\n<\/tr>\n
219<\/td>\nConfiguration Control Function Management Functions
LM-SET invoke (CC-FLAG) <\/td>\n<\/tr>\n
220<\/td>\nCRC32 Control Flag Management Functions
9.8.1 LM-SET invoke (CRC32-FLAG) <\/td>\n<\/tr>\n
221<\/td>\nOther Management Functions
LM-ACTION invoke (RESET)
Primitives
DQDB Layer Management Interaction <\/td>\n<\/tr>\n
223<\/td>\n10 DQDB Layer Management Protocol
10.1 DQDB Layer Management Information Octets <\/td>\n<\/tr>\n
224<\/td>\nBus Identification Field (BIF)
DQDB Layer Management Information Octets <\/td>\n<\/tr>\n
225<\/td>\nSubNetwork Configuration Field (SNCF)
SNCF Subfield Formats
Table 10-1 BIF Codes <\/td>\n<\/tr>\n
226<\/td>\nMID Page Allocation Field (MPAF)
DSGS Codes
Table 10-3 HOBS Codes
ETSS Codes <\/td>\n<\/tr>\n
227<\/td>\nMPAF Subfield Formats
PR Codes <\/td>\n<\/tr>\n
228<\/td>\n10.2 Configuration Control Protocol
PCM Codes
PCC Codes <\/td>\n<\/tr>\n
229<\/td>\nFunctions in a Node <\/td>\n<\/tr>\n
230<\/td>\nthe Default Slot Generator Function
the Default Slot Generator Function <\/td>\n<\/tr>\n
231<\/td>\nFunction Type
Generation of Subnetwork Configuration Field Subfields <\/td>\n<\/tr>\n
232<\/td>\nReceived at a Node Containing the Default Slot Generator
Received at a Node Not Containing the Default Slot Generator <\/td>\n<\/tr>\n
234<\/td>\nDefault Configuration Control State Machine <\/td>\n<\/tr>\n
235<\/td>\nDiagram <\/td>\n<\/tr>\n
238<\/td>\nHead of Bus Function Operations Table <\/td>\n<\/tr>\n
239<\/td>\nSource Function Operations Table <\/td>\n<\/tr>\n
240<\/td>\nConfiguration Control Type 2 State Machine <\/td>\n<\/tr>\n
242<\/td>\n(CC-2 Function) <\/td>\n<\/tr>\n
246<\/td>\nTable 10-11 Configuration Control Type 2 Function Operations Table <\/td>\n<\/tr>\n
247<\/td>\nConfiguration Control Type 1 State Machine <\/td>\n<\/tr>\n
248<\/td>\n(CC-1 Function) <\/td>\n<\/tr>\n
252<\/td>\nTable 10-12 Configuration Control Type 1 Function Operations Table <\/td>\n<\/tr>\n
253<\/td>\n10.3 MID Page Allocation Protocol <\/td>\n<\/tr>\n
255<\/td>\nPage Counter State Machine (PCSM) for Head of Bus A
MID Page Allocation Protocol Information Flow <\/td>\n<\/tr>\n
257<\/td>\nPage Reservation State Machine for Head of Bus A <\/td>\n<\/tr>\n
258<\/td>\nPage Counter Modulus Operation for Head of Bus A
Page Counter State Machine (PCSM) for Bus A or Bus B <\/td>\n<\/tr>\n
259<\/td>\n11.2 Node Configuration
Fig 10-11 Page Counter State Machine for Bus x (PCSM-x) <\/td>\n<\/tr>\n
261<\/td>\n10.3.5 Keep Page State Machine (KPSM) <\/td>\n<\/tr>\n
262<\/td>\nGet Page State Machine (GPSM) <\/td>\n<\/tr>\n
263<\/td>\nFig 10-12 Get Page State Machine (GPSM) <\/td>\n<\/tr>\n
265<\/td>\n11 Physical Layer Principles of Operation
11.1 Architectural Considerations
11.3 Duplex Operation of the Transmission Link <\/td>\n<\/tr>\n
266<\/td>\nPhysical Layer Connection State Machine (PLCSM) <\/td>\n<\/tr>\n
267<\/td>\n11.4 Node Synchronization
Physical Layer Connection State Machine (PLCSM) <\/td>\n<\/tr>\n
268<\/td>\nPhysical Layer Connection State Machine <\/td>\n<\/tr>\n
269<\/td>\n11.5 Physical Layer Maintenance Functions
Fault Detection within Nodes
11.5.2 Node Isolation
Abstract Encoding of LSS <\/td>\n<\/tr>\n
270<\/td>\nFault Detection on Transmission Links
11.5.4 Nodes Not Supporting Head of Bus Functions
11.6 Physical Layer Facilities
Control Flag <\/td>\n<\/tr>\n
271<\/td>\nHead of Bus Capable Flag (HOB-CAPABLE) <\/td>\n<\/tr>\n
272<\/td>\nSystems
12.1 Introduction
DS3 Relationship to the PLCP
Transmission System Relationship to the PLCP <\/td>\n<\/tr>\n
273<\/td>\n12.2 The PLCP Frame Format
12.3 PLCP Field Definitions
Framing Octets Al, A2)
Path Overhead Identifier (P11-PO)
12.3.3 PLCP Path Overhead Octets <\/td>\n<\/tr>\n
274<\/td>\nThe PLCP Frame Format <\/td>\n<\/tr>\n
275<\/td>\nPath Overhead Identifier (POI) Octet
Al and A2 Codes
Path Overhead Identifier (POI) Codes <\/td>\n<\/tr>\n
276<\/td>\nPLCP Path Status (Gl)
LSS Codes <\/td>\n<\/tr>\n
277<\/td>\n12.3.4 Trailer Nibbles
12.4 PLCP Behavior During Faults
Table 12-4 Cycle\/Stuff Counter Codes <\/td>\n<\/tr>\n
278<\/td>\n12.5 PLCP Behavior During DQDB Layer out of Service <\/td>\n<\/tr>\n
279<\/td>\n12.6 PLCP Framing
PLCP Framing State Machine Transition Diagram <\/td>\n<\/tr>\n
281<\/td>\nLink Status Signal Operations Table
Table 12-5 Link Status Signal Operations Table <\/td>\n<\/tr>\n
282<\/td>\n12.6.2 Physical Layer Frame Timing Operations Table
Table <\/td>\n<\/tr>\n
284<\/td>\nRequirements for Supporting Connection Setup
A1 Introduction <\/td>\n<\/tr>\n
285<\/td>\nCall Establishment Model
Call Establishment Procedures
Functional Elements for Call Setup <\/td>\n<\/tr>\n
286<\/td>\nCall <\/td>\n<\/tr>\n
288<\/td>\nLayer Management Message Flows at the Originating Side <\/td>\n<\/tr>\n
290<\/td>\nLayer Management Message Flows at the Terminating Side <\/td>\n<\/tr>\n
291<\/td>\nA4 Call Clearing Procedures <\/td>\n<\/tr>\n
292<\/td>\nLayer Management Message Flows at the Terminating Side <\/td>\n<\/tr>\n
293<\/td>\nA5 References <\/td>\n<\/tr>\n
294<\/td>\nBus Selection for Connectionless Service
B1 Introduction
Bothways Transmission
Bus Selection Tables <\/td>\n<\/tr>\n
295<\/td>\nOpen Dual Bus Topology
Looped Dual Bus Topology <\/td>\n<\/tr>\n
296<\/td>\nLooped Topology Reconfigured into Open Topology <\/td>\n<\/tr>\n
297<\/td>\nSelf-Learned Tables
B5 Table Maintenance by Aging Out <\/td>\n<\/tr>\n
298<\/td>\nA Distributed Scheme for Table Maintenance
B7 References <\/td>\n<\/tr>\n
299<\/td>\nRequirement for Equal Slot Rates on Both Buses <\/td>\n<\/tr>\n
300<\/td>\nRelationship between DQSM and RQM <\/td>\n<\/tr>\n
301<\/td>\nLocal Request Queue <\/td>\n<\/tr>\n
302<\/td>\nCommon Functions Block Architecture <\/td>\n<\/tr>\n
303<\/td>\nSlot Generator Function <\/td>\n<\/tr>\n
304<\/td>\nDefault Slot Generator Function <\/td>\n<\/tr>\n
305<\/td>\nRationale for the Subnetwork Timing Reference Selection Hierarchy
F1 Introduction
Rationale for the Hierarchy <\/td>\n<\/tr>\n
307<\/td>\nExample Stable Subnetwork Configurations <\/td>\n<\/tr>\n
308<\/td>\nKey to Subnetwork Configuration Diagrams <\/td>\n<\/tr>\n
309<\/td>\nLooped Configuration: External Timing at Node with SG-D <\/td>\n<\/tr>\n
310<\/td>\nOne Other Node <\/td>\n<\/tr>\n
312<\/td>\nLooped Configuration: Local Timing at Node with SG-D <\/td>\n<\/tr>\n
313<\/td>\nwith SG-D <\/td>\n<\/tr>\n
314<\/td>\nExternally Timed <\/td>\n<\/tr>\n
315<\/td>\nExternally Timed <\/td>\n<\/tr>\n
316<\/td>\nExternally Timed <\/td>\n<\/tr>\n
317<\/td>\nLocally Timed <\/td>\n<\/tr>\n
318<\/td>\nLocally Timed <\/td>\n<\/tr>\n
319<\/td>\nLocally Timed <\/td>\n<\/tr>\n
320<\/td>\n(and Upstream on Bus B) from Node with SG-D <\/td>\n<\/tr>\n
321<\/td>\n(and Upstream on Bus A) from Node with SG-D <\/td>\n<\/tr>\n
322<\/td>\n(Node with SG-D at Head of Bus A) <\/td>\n<\/tr>\n
323<\/td>\nHead of Bus B) <\/td>\n<\/tr>\n
324<\/td>\nRemote from Node with SG-D <\/td>\n<\/tr>\n
325<\/td>\nRemote from Node with SG-D <\/td>\n<\/tr>\n
326<\/td>\nIsland Configuration: No External Timing
Island Configuration: External Timing in Middle of Bus <\/td>\n<\/tr>\n
327<\/td>\nIsland Configuration: External Timing at Head of Bus B
Island Configuration: External Timing at Head of Bus A <\/td>\n<\/tr>\n
328<\/td>\nUndergoing Configuration Changes
H1 Introduction
H2 Configuration Control Protocol Facilities <\/td>\n<\/tr>\n
329<\/td>\nRationale for the Head of Bus Arbitration Timer
H4 Example of Configuration Control Protocol <\/td>\n<\/tr>\n
331<\/td>\nLooped Configuration of Four Nodes <\/td>\n<\/tr>\n
332<\/td>\nFailed Link Between Nodes Q and S <\/td>\n<\/tr>\n
333<\/td>\nArbitration Completed <\/td>\n<\/tr>\n
334<\/td>\nReconfigured to Open Configuration <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Local and Metropolitan Area Networks: Distributed Queue Dual Bus (DQDB) Subnetwork of a Metropolitan Area Network (MAN)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1991<\/td>\n336<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":79266,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-79265","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/79265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/79266"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=79265"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=79265"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=79265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}