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Performance report message, Statistics – EXFO FTB-8100 Series Transport Blazer for FTB-200 User Manual

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DSn Tabs

SONET/SDH Application

235

PRM RX

Performance Report Message

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Circuit indicates the selected circuit type which can be CI to Network
or Network to CI.

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PRM Bit Event Counts: Indicates the count of the detected valid PRM
bit events.

Statistics

Valid Count indicates the number of valid PRM messages received.

G1: CRC Error Event = 1

SE: Severely-Errored Framing Event ≥ 1

G2: 1 < CRC Error Event ≤ 5

FE: Frame Sync. Bit Error Event ≥ 1

G3: 5 < CRC Error Event ≤ 10

LV: Line Code Violation Event ≥ 1

G4: 10 < CRC Error Event ≤ 100 SL: Controlled Slip Event ≥ 1
G5: 100 < CRC Error Event ≤ 319 LB: Payload Loopback Activated
G6: CRC Error Event ≥ 320