Field Notice: FN - 63488 - ONS15454 M6: TNC/TSCs cards in Multi-shelf mode autonomously resets every 100 days - Workaround Provided

Notice

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Revision History

Products Affected

Defect Information

Problem Description

TNC/TSC cards in a node provisioned in multi-shelf mode autonomously reset every 100 days.

This problem does not affect nodes that are configured as single-shelf nodes.

All TNC/TSC cards that run the following releases are affected: 9.203, 9.211, 9.3, 9.4.

This issue is fixed in these software releases: 9.60, 9.401, 9.22, 9.213.

Background

Due to a defect in the low-level software, an internal counter reaches an invalid value after 100 days and triggers the software to perform the autonomous reset on the TNC/TSC card.

This issue is fixed in these software releases: 9.60, 9.401, 9.22, 9.213.

Problem Symptom

The TNC/TSC cards reset and go through a warm restart of the processor on the card. It is possible for multiple or all TNC/TSC cards on a node to reset at the same time.

Workaround/Solution

The workaround for this issue is to perform a manual reset on the TNC/TSC cards in the system every 90-95 days. By performing the manual reset, you can monitor the manual reset in order to allow the TNC/TSC cards to be reset in a controlled operation.

Cisco recommends that the TNC/TSC cards of a node be reset in a staggered manner to remove the possibility of all TNC/TSC cards resetting at the same time if this issue occurs. You should reset a TNC/TSC card, confirm proper recovery and operation, and wait 15 minutes before resetting the next TNC/TSC card.

Cisco also recommends that you cycle through all standby (STBY) TNC/TSC cards before resetting the ACT cards.

How To Identify Affected Products

All versions of TNC/TSC cards that run the following releases are affected: 9.203, 9.211, 9.3, 9.4.

This issue is fixed in these software releases: 9.60, 9.401, 9.22, 9.213.

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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