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POE Firmware Update May Fail On Stacks Or Standalone Units

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TitlePOE Firmware Update May Fail On Stacks Or Standalone Units
Symptoms
  • POE firmware update failing to download and apply to stack of switches or standalone units
  • One or more Test 301 failed messages seen on console during reboot
Test 301  POE    Contact  -    FAILED
POE  Status: Bad Firmware:  AF00E121 00E12114 000000C7

Test 301  POE    Contact  -    FAILED
POE  Bad PSE I2C Adrs[ 0 ]:  FFFFFFFF FFFFFFFF FFFFFFFF

Test 301  POE    Contact  -    FAILED
POE Receive Timed Out (0.): 00000000 00000000 00000000
  • POE devices on one or more units may return error for POE power class
ERS#show poe-port-status
Unit Admin    Current                  Limit            Power-up   
Port Status   Status            Class (Watts) Priority  Mode       
---- -------  ----------------- ----- ------- --------  -----------

3/1  Enable   Detecting         Error 32      Low       802.3at     
3/2  Enable   Detecting         Error 32      Low       802.3at
  • POE port functionality may randomly disable on one or more units
  • Reboot of unit or stack may temporarily resolve POE ports disabled, but POE may randomly become disabled again
  • Multiple download attempts of 1.5.0.11 POE firmware downloaded/applied to stack of switches may resolve
  • Downgrade to previous POE firmware may resolve
  • Table Index: <index number>, Entry not in use messages may display when executing CLI commands.
ERS# show running-config
Table index: 110
Entry not in use

Table index: 111
Entry not in use
Environment
  • ERS 4900/5900
  • SW:v7.6.0.007 and earlier
Cause
Software defect ERS495900-5147
Resolution
Fixed in release 7.6.1

If upgrading to 7.6.1 release:
  1. Download new firmware (if applicable) and use no-reset option
  2. Download new software and reboot switch/stack
  3. Upgrade POE firmware to 1.5.0.11 (switch/stack will reboot automatically)
Additional notes
If unable to download any POE FW after multiple attempts and downgrade to previously installed POE FW fails, then unit(s) will need to be RMA'ed.
Return Material Authorization RMA Process and FAQ

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