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Cisco Bug: CSCvr93741 - Cisco Nexus 3000 devices running 7.0(3)I4(7) and 7.0(3)I7(6) may fail with errors on ISSU

Last Modified

Aug 28, 2020

Products (1)

  • Cisco Nexus 3000 Series Switches

Known Affected Releases

7.0(3)I7(7.6)

Description (partial)

Symptom:
TORs and EOR LCs on Cisco Nexus 3000, 3100 and 3200 devices when doing an ISSU to NX-OS Images with Broadcom SDK 6.4.8 might fail in rare cases due to timeout with the following errors: 
switch# slot 1 quoted "show logging onboard internal bcm-usd.

...
Thu Oct 31 22:24:18 2019 (264327 us) 
unit 4 Got invalid mem pop from ING_SER_FIFO_X !!
...

Conditions:
On TORs and EOR LCs with Broadcom ASICs, ISSU to NXOS image with broadcom sdk 6.4.8,
the following errors may be seen if hardware tables run into parity errors 
during a small window in warmboot sdk initialization phase post kexec.
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