Having problems setting ports to 10mb after XOS 22.2.1.5 upgrade

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Hello all, I just sent out the new XOS 22.2.1.5 firmware to a few switches now i am having issues setting ports to 10mb for some legacy devices. UPS cards and old cisco pots ata's. I did not have this issue on the previous FW XOS  22.1.1.5. 

I only noticed this after our 3 old ups interfaces that only work when the port is set to 10mb never came back up after a switch upgrade. Including one old cisco ata that only works at 10mb. All on separate vlan's and closets. 

I am changing this via the command. 

configure ports 2:47 auto off speed 10 duplex full

Any ideas or could this be a bug?

Thanks!
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Evan Kuckelheim

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Posted 2 years ago

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Brandon Clay, Escalation Support Engineer

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Hi Evan,

What model of switches are you seeing this issue on?
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Evan Kuckelheim

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I only have X460-G2's deployed.
(Edited)
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Brandon Clay, Escalation Support Engineer

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Just to confirm, these were working previously with the same cables, patch panels, etc?

If so, I would suggest opening a case with GTAC so that we can investigate this fully.
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Evan Kuckelheim

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Yes indeed. Patch cables have been swapped out and the device has been plugged in directly into the switch before i was even notified. 

I have tried setting the ports back to auto and dropped it back down to 10mb.
With no change.

Sounds good i will open a case with GTAC. 
Edited: 

Case Number: 01296191
(Edited)
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Grosjean, Stephane, Employee

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did you try the good old disable/enable on one of the ports?
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Evan Kuckelheim

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Yes indeed.

ATM if i downgrade using inventory manager to 22.1.1.5 and that didnt work. I typed in "use image secondary" bringing me back to
22.2.15 and all i did was type
"* Slot-1 X-460-G2-KMS_CLOSET_E.9 # configure ports 2:47 auto-polarity on
* Slot-1 X-460-G2-KMS_CLOSET_E.10 # restart ports 2:47
* Slot-1 X-460-G2-KMS_CLOSET_E.11 # disable ports 2:47
* Slot-1 X-460-G2-KMS_CLOSET_E.12 # enable ports 2:47
* Slot-1 X-460-G2-KMS_CLOSET_E.13 # restart ports 2:47
"

The port came up at 10mb half duplex!

Am i crazy? how did that just work?

Just tried the same exact procedure on three different switches it worked! I still have one switch i haven't touched since the original upgrade and tried changing the polarity, enabling and disabling the port and restarting the port it does not work. I have even gave this specific switch a cold reset and same behavior. 

I have even tried taking that same device from that closet and plugging in my test switch and after performing the downgrade and upgrade from above; the device negotiates at 10mb half duplex. 

I really don't understand why this occurring it is indeed very bizarre. 

All are from X460-G2's
(Edited)
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Grosjean, Stephane, Employee

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Sorry, I'm a bit lost. the device is negotiating 10Mbps Half-Duplex? But it should be Full-Duplex, right? On the switch, what is the speed/duplex setting? Looks like there's autoneg only on one side. Make sure the devices are also requesting full-duplex (maybe the link loss on reboot made them change that), as half-duplex is not supported on these switches.
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Evan Kuckelheim

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If it is left on auto neg it comes up as half duplex i can manually force it to Full duplex and it works. Connection works with both half duplex or full duplex.  That's not the point though.  Before i was receiving no link light when the port was set to auto or 10mb manually on the switch.

Until i pushed the old version of XOS (22.1.1.5) down to the switch using inventory manager and changed my partition back to the XOS (22.2.1.5) in the CLI using the command "use image secondary". Then if i disabled and restarted ports for my manually set 10mb ports. They got a link light. Sorry if that didn't make sense above. 
(Edited)
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Evan Kuckelheim

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Just leaving an update from GTAC 
Looks like a bug
Hello Evan, Sorry for the delay. I was able to replicate this in our lab. Unfortunately, the port goes into an unrecoverable point on my switch. No amount of restarting or re-configuring ever brings it up. Regardless I will reach out to our engineering team for them to take a look.
(Edited)
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Jeremy, Embassador

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I see this bug as well.. along with a large list of other bugs.