Sonet Events On Atm Ports; Sonet Events - Extreme Networks BlackDiamond 6800 Installation And User Manual

Table 3-5: Summary of SONET Statistics
Statistic
Section parity errors
Line parity errors
Path parity errors
REI-L event counter
REI-P event counter
LOS event counter
LOF event counter
LOP event counter
AIS-L event counter
AIS-P event counter
RDI-L event counter
RDI-P event counter
PLM-P event counter
SF BER event counter
SD BER event counter

SONET Events on ATM Ports

The ATM module can detect and report a variety of error and alarm conditions, some of
which also trigger actions on the SONET link. Table 3-6 describes these events and their
associated actions. Syslog messages are output for these events. For more information
about Syslog, see the ExtremeWare Software User Guide.
Table 3-6: SONET Events
Event
Loss of Signal (LOS)
Asynchronous Transfer Mode (ATM) Module Installation and User Guide
Description
Number of B1 parity errors detected
Number of B2 parity errors detected
Number of B3 parity errors detected
Number of B2 parity errors detected by peer LTE
Number of B3 parity errors detected by peer PTE
Number of LOS events
Number of LOF events
Number of LOP events
Number of AIS-L events
Number of AIS-P events
Number of RDI-L events
Number of RDI-P events
Number of PLM-P events
Number of SF BER events
Number of SD BER events
Description
Loss of Signal is detected by the Section Terminating Equipment
(STE) when an all-zeroes pattern on the incoming SONET signal
lasts 100 microseconds or longer. This condition can be caused by
loss of light on the fiber.
SONET Action: Send RDI-L upon LOS detection.
Configuring and Monitoring SONET
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