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Cisco Bug: CSCut49745 - Nexus 6001 Silent Reload with I2C Cause Code 0x0100

Last Modified

Oct 31, 2018

Products (9)

  • Cisco Nexus 6000 Series Switches
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 5672UP Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 56128P Switch
  • Cisco Nexus 5596T Switch

Known Affected Releases

6.0(2)N2(3) 7.0(2)N1(1)

Description (partial)

A Nexus 6001 chassis may experience an unexpected reload. The reset-reason will be listed as "Unknown".

The I2C cause code, which should be recorded in 'show logging onboard internal reset-reason' on all released code for the N6K, will be recorded as 0x0100 ("ADM1066 Power Good Triggered Reset").

Reset Reason for this card:
        Image Version : 6.0(2)N2(3)
        Reset Reason (LCM): Unknown (0) at time Fri Feb 20 13:30:02 2015
        Reset Reason (SW): Unknown (0) at time Fri Feb 20 07:32:04 2015
          Service (Additional Info): 
        Reset Reason (HW): uC reset code: 0x0100
          ADM1066 Power Good Triggered Reset at time Fri Feb 20 07:32:04 2015

This has thus far been observed on N6K-C6001-64P switches with Platinum power supplies (NXA-PAC-1100W).

This defect is currently under investigation and so an exact trigger or other possible conditions are not currently known.
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