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Cisco Memory Component Issues

Cisco recently announced a problem with the memory used in several of their platforms. A specific memory supplier (who Cisco has not named) provided faulty memory modules to Cisco and other vendors between the years of 2005 and 2010.

The Problem

The memory in these platforms degrades over time and up until recently the failure rate was below expected levels. However, recently several Cisco customers have had higher than expected failure rates and as a result Cisco is publicizing the issue to raise awareness.

One way to see if your device has the issue is to power cycle it. If a device does not boot up after being powered back on, then it is likely due to this memory issue.

Affected Platforms

The following platforms may have the faulty memory:

  • Cisco ISRs (1800s, 2800s, 3800s) 
  • Cisco Catalyst switches (2960, 3560, 3750)
  • Cisco 7200 Series Routers
  • Cisco ASR 1000 Series ASRs
  • Cisco MDS 9000 Series Multilayer Switches
  • Cisco Nexus 7000 Series Switches
  • Cisco ASA 5500 Series Adaptive Security Appliances (ASA 5505/10/20/40/50)
  • Many more platforms listed on Cisco's site...

So, as you can see, a lot of gear Cisco has sold in the past decade could be a failure waiting to happen.

Next Steps

What can you do if you have a product that might have this faulty memory? At the time of this writing, Cisco is not preemptively replacing equipment. Cisco has implemented a fix-on-fail procedure to replace failed equipment on an as needed basis. If you have one of the products listed on Cisco's announcement page and it fails, call TAC.

Cisco is publishing information as it becomes available at

No votes yet


I hope there are other ways

I hope there are other ways to see. I don't like the idea of doing an IOS site upgrade with a 100 or so 2960's and praying they all come back up.

jimjim84's picture

They must have changed the

They must have changed the site an affected PIDs.

I don't see any mention of Catalyst switches for 2960, 3560, or 3750. If that were the case it would be huge has we have a lot of those switches still in production.

Any chance of a link to where you read those catalyst models may be in danger of the memory failure?


Adam's picture

The list in my post was based

The list in my post was based on their original announcement. It looks like they've modified their site since the initial publication. I don't have a copy of the original list other than the summary bullets I wrote up.

I'd recommend having a spare on hand in case any of your devices are powered off and don't come back.

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