Syncpri; Clear The Syncpri Alarm; Syncsec - Cisco ONS 15600 SDH Troubleshooting Manual

Chapter 2 Alarm Troubleshooting
If the alarm clears, complete the
Step 3
Note
Note
If the SYNC-FREQ alarm continues to report after replacing the TSC card, log into the Technical
Step 4
Support Website at http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800
553-2447).

2.6.186 SYNCPRI

A Primary Synchronization Reference Failure alarm occurs at the NE (node) level when the
ONS 15600 SDH loses the primary timing source (reference 1). The ONS 15600 SDH uses three ranked
timing references. The timing references are typically two BITS-level or line-level sources and an
internal reference. If SYNCPRI occurs, the ONS 15600 SDH should switch to its second timing source
(reference 2). This switch also triggers the SWTOSEC alarm.

Clear the SYNCPRI Alarm

From node view, click the Provisioning > Timing > General tabs and identify the timing source in
Step 1
REF-1 of the NE Reference.
If REF-1 is Internal, this refers to the active TSC card. Look for any alarms related to the TSC card and
Step 2
troubleshoot them.
If REF-1 is BITS, follow the
Step 3
If the primary reference clock is an incoming port on the ONS 15600 SDH, follow the
Step 4
(STMN) Alarm" procedure on page
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 5
for more information or call Cisco TAC (1 800 553-2447).

2.6.187 SYNCSEC

July 2010
It takes approximately 20 minutes for the active TSC card to transfer the system software to the
newly installed TSC card. Software transfer occurs in instances where different software
versions exist on the two cards. When the transfer completes, the TSC card reboots and goes into
standby mode after approximately three minutes.
If the active and standby TSC cards have the same versions of software, it takes approximately
three minutes for software to be updated on a standby TSC card.
Default Severity: Minor (MN), Non-Service-Affecting (NSA) for EXT-SREF; Major (MJ),
Service-Affecting (SA) for NE-SREF
Logical Objects: EXT-SREF, NE-SREF
"Clear the LOF (BITS) Alarm" procedure on page
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
"Replace a TSC Card" procedure on page
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2.6.186 SYNCPRI
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"Clear the LOF
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