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Author Topic: AVAYA 8600 freeze CPU at 76%  (Read 974 times)

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Offline caxinas

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AVAYA 8600 freeze CPU at 76%
« on: July 18, 2017, 06:04:15 PM »
Hello all,

I have 2 Avaya 8600 in my primary DC and one in my DRC.
Since 1 month ago that i note that one 8600 had CPU peaks (beteween 10% and aprox 80%) and the behaviour is cyclic starts at 10 and rises to 80% and then starts to decrease, this in less than 10 minutes, the other two 8600 are with their CPU normal, around 10%.
Last week i have lost  at all 3 the http access, i  now only have SSH.
This week i realized that all 8600 have the cpu freeze one at 76%, the other at 10% and the other at 13%.
I already have done a reboot to all three, but the 8600 with the peaks in the cpu start imediatly with the peaks.
Passed only 3 days and i lost again the http acess.
I have searched for broadcast storms, runed the trace command but i donīt have any clue about whats is happening with my 8600.
Someone have a idea of what is happening?

I send 3 seconds of the trace command in attach, if anyone want to give a look.


Any help is welcome




Offline TankII

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  • Posts: 541
Re: AVAYA 8600 freeze CPU at 76%
« Reply #1 on: July 19, 2017, 01:42:48 PM »
Check for the following:
Network scanning software such  as printer monitoring systems, NetDisco, and others.
Change your SNMP strings in case a generic scanner or tool is misconfigured.
Check for Broadcast storms/loops - enable protections at the port, VLAN, and network level such as SLPGuard.
Ensure discard tagged  or Untagged frames is correctly configured on  link and trunk ports.