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Cisco Bug: CSCuq86416 - Crash in the vlan_mgr process after ISSU from 5.1(3)N2(1) to 6.0(2)N2(5)

Last Modified

Sep 09, 2019

Products (7)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch

Known Affected Releases

6.0(2)N2(5)

Description (partial)

Symptom:
A hap-reset crash was seen after the vlan_mgr process crashed. This this caused the system to completely reload:

Last reset at 34303 usecs after  Sun Aug 24 23:25:31 2014

  Reason: Reset triggered due to HA policy of Reset
  System version: 6.0(2)N2(5)
  Service: vlan_mgr hap reset

Even though there is two Nexus 5k devices and all FEX modules are multihomed between the two, all the FEX modules also reloaded when the process crashed:

fex-100# show system reset-reason

1) At 627648 usecs after Sun Aug 24 23:25:36 2014
    Reset Reason: Reset Requested by CLI command reload (9)
    Service (Additional Info): nif 0x20000080 flapped during s
    Image Version: 6.0(2)N2(5)

This may or may not be related to the same issue.

Conditions:
The issue occurred during an ISSU from 5.1(3)N2(1) to 6.0(2)N2(5).
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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