Clkfail; Clear The Clkfail Alarm; Contbus-Clk-A - Cisco ONS 15600 SDH Troubleshooting Manual

Chapter 2 Alarm Troubleshooting
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 2
for more information or call Cisco TAC (1 800 553-2447).

2.6.25 CLKFAIL

The Clock Fail alarm occurs when an internal clock module fails. If this alarm occurs against the standby
TSC card, the card must be replaced. If the alarm occurs against the active TSC card, the card
automatically becomes standby because the traffic and SSXC cards can only take timing from the active
TSC card.

Clear the CLKFAIL Alarm

Complete the
Step 1
Always use the supplied electrostatic discharge wristband when working with a powered
Caution
ONS 15600 SDH. Plug the wristband cable into the ESD jack located on the lower-right edge of the shelf
assembly.
Note
Note
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 2
for more information or call Cisco TAC (1 800 553-2447).

2.6.26 CONTBUS-CLK-A

An Inbound Interconnection Timing Control Bus 0 Failure alarm on the Slot 10 TSC card occurs if the
timing signal from the Slot 5 TSC card has an error. If the Slot 10 TSC card and all other cards on the
shelf raise this alarm, the alarm processor on the Slot 5 TSC card clears the alarm on the other cards and
raises this alarm against the Slot 5 TSC card only.
July 2010
Default Severity: Major (MJ), Service-Affecting (SA)
Logical Object: EQPT
"Replace a TSC Card" procedure on page 2-136
When there are different versions of system software on the two TSC cards, it takes
approximately 20 minutes for the active TSC card to transfer the system software to the newly
installed standby TSC card. 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)
Logical Object: EQPT
for the reporting TSC card.
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
2.6.25 CLKFAIL
2-31