Historical
ANSI T1.514-1995
Network Performance Parameters and Objectives for Dedicated Digital Services - SONET Bit Rates
This standard defines the parameters and establishes objectives for assessing the performance of dedicated digital services operating at the nominal 51.84 Mbit/s, 155.52 Mbit/s. and 622.08 Mbit/s interface rates of the SONET (Synchronous Optical Network) digital hierarchy. Rates above 622.08 Mbit/s and SONET virtual tributaries are for further study. This standard defines the framework for specifying accuracy and availability performance and the allocation of end-to-end performance objectives among service providers. The performance objectives are applicable to each direction of the service between network interfaces. Performance impairments originated outside the network interfaces, such as those due to end-user actions are not included in accessing performance. The parameter definitions are block based, making in-service measures convenient. The mappings given in annex A shall be sufficient for establishing in-service or out-of-service compliance with this standard.
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