Nexus 9K ports stop working...Randomly

I have two Cisco Nexus 9K's at my core layer both with 96 copper and then some fiber modules.

I'm having a weird issue where random copper ports just stop working. Issuing a shut / no shut doesn't help. Because I can't always reboot the core I will just move it to another port. But whenever I do get a chance to reboot, the ports will work again.

These ports have a very simple config: switchport mode access; switchport access vlan X and a description. I am not running STP on these ports.

Anyone see this before? Any insight is much appreciated.

Thanks in advance.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Soulja53 6F 75 6C 6A 61 Commented:
I haven't seen this before. What is connected to the ports that stop randomly?  When you move to another port it start's working again? What do your logs show? On the ports that stop working what does the port statistics show?
SysAdminAuthor Commented:
It has been random devices like a camera server or a caching server that stop working. Yes, when I move to another port immediately starts working. Upon rebooting the core the ports that stopped working, work again! But rebooting is not something I do very often.

I was troubleshooting non-related issue earlier and ran a clear counters on switch so I may not have accurate interface details on the non-working port.
Soulja53 6F 75 6C 6A 61 Commented:
Outside of checking port stats, it doesn't sound like a cabling issue since it happens to random ports. I have not seen anything like this on my 9k's. I would open a TAC case to see if this is a possible bug.  What version are you running. I am running NXOS: version 7.0(3)I4(7) on Nexus 9372's.
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

SysAdminAuthor Commented:
I have even tested cables using flukes.

I too have same Nexus 9372 series running NXOS: version 7.0(3)I2(1a)

I will have to open a TAC to see if they know of anything.
Soulja53 6F 75 6C 6A 61 Commented:
That's your best route for an anomaly like this.
Soulja53 6F 75 6C 6A 61 Commented:
Update the thread with what they find. Thanks!
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.