Cisco ONS 15500 Series

Revised June 2, 2004
April 14, 2003

NOTICE:

THIS FIELD NOTICE HAS BEEN EXPIRED AND IS NO LONGER MAINTAINED OR UPDATED BY CISCO.

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE, WARRANTY OR SUPPORT. USE OF THE INFORMATION ON THIS FIELD NOTICE OR MATERIALS LINKED FROM THIS FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected

Problem Description

Units with Firmware version 2.8 or earlier can experience a race condition which results in the watch dog resetting the core processor before the core processor can execute the routine to reboot the network processor. The result is the inability to communicate with the Amplifier and the loss of SNMP. The loss of SNMP can result in a complete loss of network management. Although the unit continues to perform optically, the user does not have the ability to manage the unit until there is a manual reset of the unit.

Background

This issue was first seen in a customer network and verified internally within Cisco internal labs.

Problem Symptoms

After you manually issue a single reboot command to the 15501-EDFA unit, the unit enters into a continuous loop of reboots and the front panel LEDs repeatedly blink, indicating "bootup sequence."

Workaround/Solution

If you have an affected unit, contact Cisco Technical Support for assistance in obtaining a reworked unit.

How To Identify Hardware Levels

From the ONS 15501 command line interface, issue the sys-info command.

15501 > sys-info 
     CLEI: WMM8T00BRA 
     Amplifier model number: ONS15501 
     Serial number: syn0603000c 
     MAC Address: 0001644710FF 
     Firmware version: 1.5 
     Hardware Revision: 314050 
     Software build date: Mon Mar 25 11:06:34 PST 2002 
     Software in various Banks: 
     1)/EdfaImg.0.2 
     2)/EdfaImg.0.2 
     3)ons15501-sw.2.0

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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