Cisco ONS 15454 Troubleshooting Manual page 436

2.7.409 SYNCSEC
2.7.409 SYNCSEC
A Loss of Timing on Secondary Reference alarm occurs when the ONS 15454 loses the secondary
timing source (reference 2). If SYNCSEC occurs, the ONS 15454 should switch to a third timing source
(reference 3) to obtain valid timing for the ONS 15454. Switching to a third timing source also triggers
the
Clear the SYNCSEC Alarm
In node view, click the Provisioning > Timing > General tabs.
Step 1
Verify the current configuration of REF-2 for the NE Reference.
Step 2
If the secondary reference is a BITS input, complete the
Step 3
page
Verify that the BITS clock is operating properly.
Step 4
If the secondary timing source is an incoming port on the ONS 15454, complete the
Step 5
(OCN) Alarm" procedure on page
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 6
for more information or call Cisco TAC 1 800 553-2447.
2.7.410 SYNCTHIRD
A Loss of Timing on Third Reference alarm occurs when the ONS 15454 loses the third timing source
(reference 3). If SYNCTHIRD occurs and the ONS 15454 uses an internal reference for source three,
the TCC2/TCC2P could have failed. The ONS 15454 often reports either the
on page 2-114
Clear the SYNCTHIRD Alarm
Step 1 In node view, click the Provisioning > Timing > General tabs.
Cisco ONS 15454 Troubleshooting Guide, R8.5
2-242
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Objects: EXT-SREF, NE-SREF
"SWTOTHIRD" alarm on page
Note The severity of SYNCSEC alarm is dependent on the alarm profile it is associated with. If
the alarm profile it is associated with is Major (MJ), then this condition is raised as MJ,
service affecting, even if alternate source of references are available.
2-158.
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Objects: EXT-SREF, NE-SREF
or the "HLDOVRSYNC" condition on page 2-126
The severity of SYNCTHIRD alarm is dependent on the alarm profile it is assosicated with.
Note
If the alarm profile it is associated with is Major (MJ), then this condition is raised as MJ,
service affecting, even if alternate source of references are available.
2-239.
"Clear the LOS (BITS) Alarm" procedure on
2-165.
Chapter 2 Alarm Troubleshooting
"Clear the LOS
"FRNGSYNC" condition
after a SYNCTHIRD alarm.
November 2009