Specifications

1-61
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
The Memory Low alarm occurs when data generated by software operations is close to exceeding the
memory capacity of the TCC+ card. The alarm clears when additional memory becomes available. If
additional memory is not made available and the memory capacity of the TCC+ card is exceeded, CTC
will cease to function.
Log on to http://www.cisco.com/tac for more information or call the Cisco Technical Assistance Center
to report a service-affecting problem (1-877-323-7368).
1.3.89 MFGMEM
• Critical, Service Affecting
The MFGMEM or Manufacturing Data Memory Failure alarm raises if the ONS 15454 cannot access
the data in the erasable programmable read-only memory (EPROM). Either the memory module on the
component failed or the TCC+ lost the ability to read that module. The EPROM stores manufacturing
data that is needed for both compatibility and inventory issues. The EPROM on the alarm interface panel
(AIP) also stores the MAC address. An inability to read a valid MAC address will disrupt IP connectivity
and gray out the ONS 15454 icon on the CTC network view.
Procedure: Clear the MFGMEM Alarm on the AIP, Fan Tray, or Backplane.
Step 1 Do a software-initiated system reset on the TCC+ by referring to the “Perform a Software-Initiated
Reset” procedure on page 3-8.
Step 2 If the alarm does not clear, do a card pull reset on the TCC+ by referring to the “Perform a Card Pull”
procedure on page 3-9.
Step 3 If the alarm does not clear, physically replace the standby TCC+ card on the ONS 15454 with a new
TCC+ card.
a. Open the TCC+ card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm which will clear when the upgrade
is complete.
c. Open the ejectors on the TCC+ card.
d. Slide the TCC+ card into the slot along the guide rails.
e. Close the ejectors.
Note It takes approximately 20 minutes for the active TCC+ to transfer the system software to the
newly-installed TCC+. Software transfer occurs in instances where different software
versions exist on the two cards. During this operation, the LEDs on the TCC+ flash Fail and
then the Active/Standby LED flashes. When the transfer completes, the TCC+ reboots and
goes into Standby mode after approximately three minutes.
Step 4 Right click the active TCC+ card to reveal a pull-down menu.
Step 5 Click Reset Card.
Wait for the TCC+ to reboot. The ONS 15454 switches the standby TCC+ card to active mode.
Step 6 Verify that the remaining TCC+ card is now in standby mode (the ACT/STBY LED changes to amber).