CSCvd05307 - what are the show commands to verify if the workaround has been applied correctly?

[Emir]

4500X-16 (VSS), 03.08.10.E:

When executing the commands mentioned in the workaround section of bug CSCvd05307 in config mode:

platform fw-asic dbl hash memory parity-error reload never
platform fw-asic buffer-used underrun-error reload never

the switch seems to accept the commands.

However, there is no matching entry in the configuration afterwards, also not in a "show run all" or "show run full".

I also checked the output of some "show platform" commands, but up to now didn't find relevant information.

• What is the (show) command to verify that these commands have been executed correctly?

[Leo Laohoo]

Re-seat the line card or the supervisor card.

[Emir]

Hi Leo,

Thanks a lot for your fast reply.

How would I proceed in that case?

This is about a 4500X 1RU switch, with the supervisor built-in.

[Leo Laohoo]

Stupid question:  Have you tried rebooting the switch?

[Emir]

Hi Leo,

Thanks again for your fast reply!

The 4500X VSS is a production unit from one of our customers and an eventual reload needs to be scheduled during a maintenance window.

Unfortunately, I didn't find much information regarding the above mentioned "platform hw-asic ..." commands.

What I foremost want to know is what the verification command would be to see if those commands have been implemented correctly.

• If I did a copy run start and then a reload, would the commands then show up in the running config?

[Leo Laohoo]

Create a TAC Case.  

[Emir]

I did some more research.

It looks like "show platform hardware qos dbl control" returns information if the commands "platform fw-asic ..." (mentioned as workaround in bug CSCvd05307) have been executed correctly or not (since the information unfortunately doesn't show up in a show run [full]):

Commands (config mode):

platform fw-asic dbl hash memory parity-error reload never
platform fw-asic buffer-used underrun-error reload never

Verification:

show platform hardware qos dbl control

Example:

show platform hardware qos dbl control
DBL Control Register
DblInPkts : Disabled
...
...
Reload thresholds for DBL interrupts:
DHM parity : 300
BuffersUsedUnderrun: 200

Execute:

platform fw-asic dbl hash memory parity-error reload never
platform fw-asic buffer-used underrun-error reload never

Re-run:

show platform hardware qos dbl control
DBL Control Register
DblInPkts : Disabled
...
...
Reload thresholds for DBL interrupts:
DHM parity : never                     <= output changes from threshold value to "never"
BuffersUsedUnderrun: never      <= output changes from threshold value to "never"