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I/G/C/B-Series with Failing Ports and "timeout draining packets" Error Messages

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Article ID: 13852

I-Series, firmware through
G-Series, firmware through
C5-Series, firmware through
C3-Series, firmware through
B5-Series, firmware through
B3-Series, firmware through

One or more "timeout draining packets" errors seen in the current.log (5487); for example:
<160>Apr 5 17:31:42 SIM[86228792]: broad_hpc_drv.c(2689) 219 %% ERROR: port 0:ge5: timeout draining packets (2377 cells remain)

Corresponding ports fail to pass traffic, though the port is up and its status otherwise looks fine.

Note: This condition is typically detected by the txqmonitor function, which may then issue messages including
"... Tx queue for interface <port#> is in stalled mode".
These txqmonitor messages can be helpful here because they report the affected port number in the conventional format.

Upgrade to firmware or higher.
Release notes state, in the 'Firmware Changes and Enhancements' section:
15297 Addressed an issue associated with the switch port state machine which could potentially cause device ports to lockup.

Pre-upgrade workaround: Reboot the switch.

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