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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.84 FULLPASSTHR-BI
The Fast Synchronization Mode condition occurs when the ONS 15600 SDH synchronizes its clock
modules. Since the ONS 15600 SDH uses Stratum 3E timing, synchronization can take about 12
minutes. This condition occurs on the TSC card where the timing distribution is sourced. Whenever this
condition is active, any timing or controller switching might affect the traffic. Errorless switching is not
guaranteed.The
“UNPROT-SYNCCLK” alarm on page 2-116
can accompany this condition if there is
no timing protection is available while the clock is synchronizing.
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).
2.6.84 FULLPASSTHR-BI
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: STMN
The Bidirectional Full Pass-Through Active condition occurs on a nonswitching node in a MS-SPRing
when the protect channels on the node are active and carrying traffic and a change is present in the
receive K byte from “No Request.” (Both data and K bytes are in pass-through mode.)
Clear the FULLPASSTHR-BI Condition
Step 1
Complete the
“Clear a MS-SPRing External Switching Command” procedure on page 2-130
Step 2
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447) to report a
Service-Affecting (SA) problem.
2.6.85 GFP-LFD
The GFP-LFD condition is not used in this platform in this release. It is reserved for development.
2.6.86 GFP-UP-MISMATCH
For information about this condition, refer to the “Alarm Troubleshooting” chapter of the
Cisco ONS 15454 DWDM Troubleshooting Guide
.
2.6.87 HELLO
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Object: STMN
The Open Shortest Path First (OSPF) Hello Fail alarm occurs when SDH DCC termination OSPF area
IDs are mismatched between two DCC terminations for a span. On a span between two
ONS 15600 SDHs, this alarm occurs at both nodes containing the mismatched DCC area IDs. On a span
between an ONS 15600 SDH and an ONS 15454 SDH, this alarm is raised only on the ONS 15600 SDH
node. Mismatched OSPF area IDs can cause CTC to lose management across the link.
Summary of Contents for Cisco ONS 15600 SDH
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