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Cisco Bug: CSCuj82699 - Power-sequencer may need to be upgraded separetely

Last Modified

May 31, 2018

Products (9)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 5020 Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch
  • Cisco Nexus 5010 Switch

Known Affected Releases

5.2(1)N1(5) 5.2(1)N1(6) 6.0(2)N2(1) 6.0(2)N3(0.337)

Description (partial)

Symptom:<br>
<br>Starting from 5.1(3)N2(1) NX-OS release, power-sequencer v5.0 was packaged into NX-OS for Nexus 5596 switches, but while upgrading to 5.2(1)N1(5), 5.2(1)N1(6) or 5.2(1)N1(7) from a release prior to 5.1(3)N2(1), the power-sequencer stays at 4.0.
<br>
<br>
<br>nexus5596# install all system bootflash:n5000-uk9.5.2.1.N1.5.bin kickstart bootflash:n5000-uk9-kickstart.5.2.1.N1.5.bin
<br>
<br>
<br><snip>
<br>Images will be upgraded according to following table:
<br>Module       Image         Running-Version             New-Version  Upg-Required
<br>------  ----------  ----------------------  ----------------------  ------------
<br>     1      system             5.0(3)N2(2)             5.2(1)N1(5)           yes
<br>     1   kickstart             5.0(3)N2(2)             5.2(1)N1(5)           yes
<br>     1        bios      v3.5.0(02/03/2011)      v3.6.0(05/09/2012)           yes
<br>     1      SFP-uC                v1.0.0.0                v1.0.0.0            no
<br>     1   power-seq                    v4.0                    v4.0            no <<<< 
<br>     1          uC                v1.0.0.2                v1.0.0.2            no
<br><snip>
<br>
<br>Power-sequencer 5.0 is required to resolve a silent reload issue CSCue71274.
<br>
<br>Please be advised, that starting from 6.0(2)N1(2a), power-sequencer v1.0 was packaged into NX-OS for Nexus 5548UP switches, while 5.2(1) train still contains latest version of the power-sequencer, which is 2.0.

Conditions:<br>
<br>*** Issue affects only Nexus 5596 chassis which are running power-sequencer 4.0(pre NX-OS 5.1(3)N2(1))
<br>
<br>nexus5596# show version
<br><snip> 
<br>Software
<br>  BIOS:      version 3.5.0
<br>  loader:    version N/A
<br>  kickstart: version 5.2(1)N1(4)
<br>  system:    version 5.2(1)N1(4)
<br>  power-seq: Module 1: version v4.0 <<< 
<br><snip>
<br>
<br>nexus5548UP# show version
<br><snip> 
<br>Software
<br>  BIOS:      version 3.6.0
<br>  loader:    version N/A
<br>  kickstart: version 6.0(2)N2(1)
<br>  system:    version 6.0(2)N2(1)
<br>  Power Sequencer Firmware: 
<br>             Module 1: version v1.0 <<< 
<br><snip> 
<br>
<br>*** If power-sequencer of the chassis was already upgraded to latest version (currently 5.0 for 5596 or 2.0 for 5548UP), downgrade will not happen.
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