Performance Processing - Sagem ADR 155C Guide D'installation Et D'utilisation

2.6 - Performance processing

Performance processing consists in supervising the following monitoring ports:
for local equipment:
S regeneration section (byte B1) (" near end working (protection) RS "),
S multiplex section (byte B2) (" near end working (protection) MS "),
S VC3 tributary paths (" near end Low Path Virtual Container "),
S VC12 tributary paths (byte V5) (" near end Low Path Virtual Container "),
for the remote equipment:
S multiplex section (byte M1) (" far end working (protection) MS "),
S VC3 tributary paths (" far end Low Path Virtual Container ")
S VC12 tributary paths (byte V5) (" far end Low Path Virtual Container ").
Performance processing includes the following functions:
S calculation of the number of errored blocks (or bit errors) on local and remote faults and
monitoring of the appearance faults over a one second period (VC12-REI indicators are not
taken into account in the calculation),
S calculation and determination of the ES (Errored Second), SES (Severely Errored Second),
BBE (Background Block Error) and UAS (UnAvailable Second) states for each monitoring
point,
S generation for each monitoring point of 15-minute counters and 24-hour counters (BBE, ES,
SES and UAS).
Determination of ES, SES and UAS performance states:
For each of the monitoring points, the following states are:
- ES (Errored Second)
- SES (Severely Errored Second)
An SES is a second for which the number of errors exceeds a defined threshold or
during which at least one fault is detected.
MS (byte B2) (for local) and MS (byte M1) (for remote)
RS (byte B1) (for local)
VC3 (for local)
VC12 (byte V5) (for local)
- UAS (UnAvailable Second)
- BBE (Background Block Error)
No reproduction or communication without the written consent of SAGEM SA
: number of seconds with at least one error detected
in a 1 s period or one fault,
: number of severely errored seconds,
Monitoring point
: number of seconds of unavailability,
: number of residual errored blocks excluding SES.
SES declaration threshold
Installation and User Guide - N56717020101
2 - OPERATION
2400
2400
600
600
Page A2-17