The recommendations are briefly defined as follows:
G.821:
Error performance of an international digital connection operating at a bit rate below the primary rate and forming
part of an Integrated Service Digital Network (ISDN)
Long term error performance conducted Out of Service (OOS)
Based on measuring bit errors
Evaluation period of 30 days
Since there is no overhead structure at these bit rates, in-service measurements are extremely difficult
G.826:
End-to-end error performance parameters and objectives for international, constant bit rate digital paths and
connections
Long term error performance for Out of Service (OOS) and In-Service Measurement (ISM)
Based on measuring bit errors for connections and block errors for paths
Evaluation period of 30 days
G.828 Analysis
: Error performance parameters and objectives for international constant bit rate synchronous digital paths
Deals exclusively with SDH paths
Long term error performance for Out of Service (OOS) and In-Service
Based on measuring block errors
Evaluation period of 30 days
G.829 Analysis:
Error performance events for SDH Regenerator and Multiplexer sections
Deals exclusively with SDH sections
Error event definition
Based on measuring block errors
M.2100:
Performance limits for bringing into service and maintenance of international multi-operator PDH paths and
connections
Deals exclusively with PDH paths, sections and systems
Based on measuring bit errors and block errors
BIS limits for OOS/ISM
Evaluation periods of 15 minutes, 2 hours and 24 hours
First step is a continuity test for 15 minutes
PDH paths are composed of sub-elements of different lengths each with its own set Reference Performance
Objectives (RPO)
M.2101 Analysis:
Performance limits and objectives for maintenance and bringing into service SDH paths and multiplex
sections.
Deals exclusively with SDH paths and sections
Based on measuring block errors
BIS limits for OOS/ISM
Evaluation periods of 15 minutes, 2 hours, 24 hours and 7 days
First step is a continuity test for 15 minutes
Note:
Only one performance analysis can be performed at a time. To view or enable the M.2100 and M.2101 analyses, the
measurement timer has to be set to a determined period. The table below describes the anomalies evaluated for the performance
analysis selected.
TX300S_e-manual_D07-00-064P_RevA00
Summary of Contents for VePAL TX300M
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Page 220: ...Pattern Setup Results Errors Alarms TX300S_e manual_D07 00 064P_RevA00...
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