ATIS - Alliance for Telecommunications Industry Solutions
Scope
SCOPE@ PURPOSE@ APPLICATION 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@ 622.08 Mbit/s@ 2.488 Gbit/s@ and 9.865 Gbit/s interface rates of the SONET (Synchronous Optical Network) digital hierarchy. Rates above 9.865 Gbit/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 evaluating 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-ofservice conformance to this standard.