Cisco goes public with Clock Signal Component Issue

A couple months ago many engineers started hearing rumors regarding an ISR 4331 recall, and problems surrounding the device. Until this week, none of us had very good information, but it seems that today Cisco has officially released some information regarding the problem. Many of us have received phone calls at this time from our account managers… while some of us, myself included, have been left in the dark. This is troubling considering how many products are out in the field.

[pullquote]Recently, Cisco became aware of an issue related to a component manufactured by one supplier that affects some Cisco products. In some units, we have seen the clock signal component degrade over time. Although the Cisco products with this component are currently performing normally, we expect product failures to increase over the years, beginning after the unit has been in operation for approximately 18 months. Once the component has failed, the system will stop functioning, will not boot, and is not recoverable.[/pullquote]

Cisco has identified the products that are affected by this issue and published an FAQ along with the Field Notices on their site. The list of products varies across the line and includes the following products that are rather popular.

• FN – 64253 – ISR4331, ISR4321, ISR4351 and UCS-E120 Might Fail After 18 Months or Longer Due to Clock Signal Component Failure – Replacement Available for Items Under Warranty or Service Contract
• FN – 64228 – ASA 5506, ASA 5506W, ASA 5506H, ASA 5508, and ASA 5516 Might Fail After 18 Months or Longer Due to Clock Signal Component Failure–Replacement Available for Items Under Warranty or Service Contract
• FN – 64251 – Nexus 9000 Series N9K-C9504-FM-E/N9K-C9508-FM-E/N9K-X9732C-EX Might Fail After 18 Months or Longer Due to Clock Signal Component Failure – Replacement Available After July 1, 2017

Please see Cisco’s website for further details.