- What are SONET and T1
- The Development of SONET
- Role of ANSI and Key Standards documents
- The Network and Services Integration Forum (NSIF)
- SONET and T1
- Features of SONET and T1
- Synchronous Networks
- SONET Timing
- Payloads and Envelopes
- Optical Fiber—The Bedrock for SONET
- Typical SONET Topology
- Present Transport Systems and SONET
- Clarification of Terms
- Summary
Role of ANSI and Key Standards documents
Today, ANSI coordinates and approves the SONET standards. The standards are developed by the T1 committee. T1X1 and T1M1 are the primary T1 Technical Subcommittees responsible for SONET. T1X1 deals with the digital hierarchy (shown in Figure 15) and synchronization. T1M1 deals with internetworking operations, administration, maintenance, and provisioning (OAM&P). Listed below are some of the most commonly cited SONET standards available from ANSI.3
ANSI T1.105: SONETBasic Description including Multiplex Structure, Rates and Formats
ANSI T1.105.01: SONETAutomatic Protection Switching
ANSI T1.105.02: SONETPayload Mappings
ANSI T1.105.03: SONETJitter at Network Interfaces
ANSI T1.105.03a: SONETJitter at Network Interfaces DS1 Supplement
ANSI T1.105.03b: SONETJitter at Network Interfaces DS3 Wander Supplement
ANSI T1.105.04: SONETData Communication Channel Protocol and Architectures
ANSI T1.105.05: SONETTandem Connection Maintenance
ANSI T1.105.06: SONETPhysical Layer Specifications
ANSI T1.105.07: SONETSub-STS-1 Interface Rates and Formats Specification
ANSI T1.105.09: SONETNetwork Element Timing and Synchronization
ANSI T1.119: SONETOAM&P, Communications
ANSI T1.119.01: SONET: OAM&P, Communications, and Protection Switching Fragment