TR TSV 000772 : ISSUE 1

1 Introduction
1.1 Purpose and Scope
1.2 Changes from TA-TSY-000772, Issue 3 and
               Supplement 1
1.3 Organization of Document
1.4 Key Bellcore Documents
1.5 Conventions
2 Background and Overview
2.1 The Need for SMDS in Customer Environments and
               Applications
2.1.1 The Impact of Information Processing Trends
               and Applications
2.1.2 The Need to Ease Geographical Limitations
2.2 The Role of SMDS in a Customer Data
               Communications Environment
2.3 The Application of MAN Technology in a Network
               Supporting SMDS
2.3.1 A MAN Standard as the Basis for SIP
2.3.2 MAN Technology as a Basis of Switching Systems
2.4 Evolution to the Support of SMDS by Broadband ISDN
3 SMDS Features
3.1 Overview of Switched Multi-megabit Data Service
               (SMDS)
3.2 Feature Description
3.2.1 Individually Addressed SMDS Data Unit Transport
3.2.2 Local Communications for Multi-CPE Access
               Arrangements
3.2.3 Addresses
3.2.3.1 Individual Address Format
3.2.3.2 Group Address Format
3.2.3.3 Correspondence of Individual Addresses to SNIs
3.2.4 Source Address Validation
3.2.5 Group Addressed SMDS Data Unit Transport
3.2.5.1 Group Address Composition
3.2.5.2 Transfer of Group Addressed SMDS Data Units
3.2.6 Address Screening
3.2.6.1 Individual Address Screens
3.2.6.2 Group Address Screens
3.2.6.3 Association of Address Screens with Addresses
               Identifying an SNI
3.2.6.4 Destination Address Screening
3.2.6.5 Source Address Screening
3.2.7 Access Classes
3.2.8 Multiple Data Units in Transit Concurrently
4 Subscriber-Network Interface
4.1 Definition of SNI
4.2 SMDS Interface Protocol (SIP)
4.2.1 Level 3 Peer-to-Peer Protocol Specification
4.2.1.1 Level 3 Protocol Data Unit Format
4.2.1.2 Level 3 Protocol Procedures
4.2.2 Level 2 Peer-to-Peer Protocol Specification
4.2.2.1 Level 2 Protocol Data Unit Format
4.2.2.2 Level 2 Protocol Procedures
4.2.3 SIP Level 1 Control Information
4.3 Access Classes and Enforcement
4.3.1 Access Class Mechanism
4.3.2 Access Class Parameters
4.3.3 Parameter Values and Relation to Access Classes
5 Performance and Quality of Service
5.1 Availability Objectives
5.1.1 Scheduled Service Time
5.1.2 Mean Time Between Service Outages
5.1.3 Mean-Time-To-Restore
5.2 Accuracy Objectives
5.2.1 Errored L3_PDU Ratio
5.2.2 Misdelivered L3_PDU Ratio
5.2.3 L3_PDU Not Delivered Ratio
5.2.4 Duplicated L3_PDU Ratio
5.2.5 Mis-sequenced L3_PDU Ratio
5.3 L3_PDU Delay Objectives
5.3.1 Delay for Individually Addressed L3_PDUs
5.3.2 Delay for Group Addressed L3_PDUs
6 SS Capacity Generic Requirements
6.1 Number of SNIs to be Supported by an SS
6.2 Addressing Criteria and Considerations
7 Miscellaneous Generic Requirements
7.1 Power Supply Requirements
7.2 Physical Requirements
7.2.1 Shock and Vibration
7.2.2 Human Factors
7.2.3 Fire Resistance
7.3 Environmental Requirements
7.3.1 Temperature And Humidity
7.3.1.1 In Operation
7.3.1.2 In Storage
7.3.2 Altitude
7.3.3 Heat Dissipation
7.3.4 Acoustical Noise
7.3.5 Airborne Contaminants
7.3.6 Electrical Protection
7.3.7 Electromagnetic Emission and Immunity
7.3.8 Electrostatic Discharge
7.3.9 Environmental Impact and Conservation
7.4 Electrical Safety Requirements
7.5 Quality and Reliability
7.5.1 Hardware Reliability Predictions
7.5.2 Device Reliability
7.5.3 Physical Design
7.5.4 Software Quality
7.5.5 Manufacturing Process
7.6 System Administration
7.6.1 Documentation
7.6.2 Transmission Performance Information
8 List of Acronyms
9 Referenced Documents

LIST OF FIGURES
Figure 1.1 Network in Support of SMDS
Figure 2.1 Example Scenario of the Use of SMDS with
               DARPA Protocols
Figure 2.2 Example Scenario of the Use of SMDS with
               OSI Protocols
Figure 2.3 Example Scenario of Bridging Between SMDS
               and a LAN
Figure 2.4 (a) Single CPE Access and (b) Multi-CPE
               Access Arrangements
Figure 4.1 SMDS Access Configurations
Figure 4.2 SIP Protocol Stack
Figure 4.3 Encapsulation of User Information by the
               Layers of SIP
Figure 4.4 SIP Level 3 Protocol Data Unit Format
Figure 4.5 Address Field
Figure 4.6 Header Extension Field Format
Figure 4.7a Example Header Extension with One Carrier Value
               Specified
Figure 4.7b Example Header Extension with Two Carrier Values
               Specified
Figure 4.8 SIP Level 2 Protocol Data Unit Format
Figure 4.9 Access Control Field (CPE - SS)
Figure 4.10 Access Control Field (SS - CPE)
Figure 4.11 Segmentation of an L3_PDU into L2_PDUs
Figure 4.12 State Diagram of SS Procedures for Sending
               an L2_PDU
Figure 4.13 SS Level 2 Receiver State Machine for MID x
Figure 4.14 SIP Level 1 Control Information Fields
               (M2 and M1 octets)
Figure 5.1 Scope of SNI-to-SNI Objectives
LIST OF TABLES
Table 3.1 Choices for Access Classes
Table 4.1 Element Types
Table 4.2 Relation of Number of Carriers to Carrier
               Selection Element Length
Table 4.3 Segment Type Values
Table 4.4a MID Page Allocation Field Values
Table 4.4b Page Counter Modulus Codes
Table 4.5 Parameter Values for Access Classes
Table 7.1 Radiated Emission Requirements
Table 7.2 Conducted Emission Requirements
LIST OF APPENDICES
Appendix A - IEEE P802.6 AND SIP

Defines Bellcore's view of proposed generic requirements for equipment intended for use in the BCC networks in support of the early availability of a high-speed data service called Switched Multi-megabit Data Service (SMDS). SMDS is a high-speed, connectionless, public, packet switching service that will extend Local Area Network (LAN)-like performance beyond the subscriber's premises, across a metropolitan or wide area.