Odd Issues with C3650

[anthonyjjohnson]

Hello Everyone,

I'm having an odd issue with a C3650. I don't see my interface counters incrementing appropriately, and I'm getting the following in the log:

*Mar  3 20:21:25.297: %PLATFORM_PM-2-ASYNC_WAIT_TOUT: PM wait for ack timed out: req_id 20559, dest slots:0x2, ack pending from slots 0x2

I figured I would ask here before getting TAC on the phone.

Thank you for having a look!

-Anthony

[Peter Paluch · Accepted solution]

Anthony,

This looks like a low-level issue which only TAC can help you resolve. Just by the gut feeling, the message seems to relate to a timeout (TOUT) waiting for some kind of acknowledgement from your switch's port manager (PM). Let's hope it's not a hardware issue although at this point, it does unfortunately seem so.

Best regards,
Peter

[Madhukrishnan Gopinathan Nair]

Hi Anthony,

I had a quick look these and it seems as indicated by Peter, the Port manager process seems to be stuck.  Looking at my database, most of these issues are fixed by a reload of the switch/stack.

Also these symptoms are not seen on latest codes. So you could consider for an upgrade as well.

If you can't fix by a reload, please feel free to open a case with TAC for further investigation.

Hope this helps you.

Madhu

[anthonyjjohnson]

You hit the nail on the head Peter. Thanks!

After calling TAC they seem to think it's the same thing, only 3 cases of this particular problem so far. I'll be upgrading and reloading during my next outage.

Thanks again!

[Filip Po]

Hello, did you resolve the problem by changing IOS? Which IOS you choosed?

Filip

[TG]

I had this also - running 03.03.05SE

I reloaded the stack with no further ado.

[Roman_Shilenko]

Have the same issue on a stack of five WS-C3650-48PQ running 03.07.05E.

[ServiceDesk1553]

Hi Romon/All, 

I am having the same issue, got fixed this after reboot. Wondering if anyone knows the RC? I am running on Version 03.07.03E

Rashid K