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NX7500 Frequent Reboot with graceful:pmlite-/usr/sbin/ssm

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Information

 
TitleNX7500 Frequent Reboot with graceful:pmlite-/usr/sbin/ssm
Symptoms
NX7500 controller-managing more than 1024 APs
NX7500 keeps rebooting with error messages : %PM-3-PROCRSTRT: Process "/usr/sbin/ssm" is not responding. Restarting process 
!### service show reboot-history 
Configured size of reboot history is 50 
  Date & Time Event 
===================================================== 
Sep 23 18:05:57 2018 startup 5.9.2.2-005R 
Sep 23 18:04:22 2018 shutdown (graceful:pmlite-/usr/sbin/ssm) 
Sep 23 21:57:18 2018 startup 5.9.2.2-005R 
Sep 23 17:55:39 2018 shutdown (graceful:pmlite-/usr/sbin/ssm) 
Environment
  • Extreme Wireless WiNG
  • WiNG version 5.9.2.2
  • NX7500
  • Controller-managed
Cause
SPR-3522 - NX7500 frequent SSM crashes seen controller managed RFDM AP count is more than 1024
Resolution
Issue is fixed on WiNG 5.9.2.4.
Perform firmware upgrade to 5.9.2.4 or above.
Additional notes
For firmware upgrade, kindly refer to release note and How to upgrade a WiNG controller or AP from CLI

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