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:
! regeneration section (byte B1) ("near end working (protection) RS"),
! multiplex section (byte B2) ("near end working (protection) MS"),
!
VC4 tributary paths ("near end High Path Virtual Container"),
! VC3 tributary paths ("near end Low Path Virtual Container"),
! VC12 tributary paths (byte V5) ("near end Low Path Virtual Container"),
for the remote equipment:
! multiplex section (byte M1) ("far end working (protection) MS"),
! VC4 tributary paths ("far end High Path Virtual Container")
! VC3 tributary paths ("far end Low Path Virtual Container")
! VC12 tributary paths (byte V5) ("far end Low Path Virtual Container").
Performance processing includes the following functions:
! 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,
! 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,
! 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)
HP – VC4
LP - VC3 (for local)
LP - VC12 (byte V5) (for local)
- UAS (UnAvailable Second)
- BBE (Background Block Error)
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: 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
28800 (24 blocks per frame)
9600 (8 blocks per frame)
Installation and User Guide - N56717020104
2 - OPERATION
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