Philips remote service engineer (rse) spoke to the customer and determined that the device status showed both routers for tuscon main and several network switches offline: 1190_corea (10.112.192.2) and 1190_coreb (10.112.193.3).A field service engineer (fse) was dispatched for onsite support.The fse found that the core routers had maximum utilization on multiple cores, and event logging lines were present.The fse determined the access switch was flapping.The fse went to the main distribution frame (mdf) closet and discovered that router cores a and b were high central processing unit (cpu) utilization.The fse restarted router cores a and b and eliminated the three "logging event" lines from trunks on all psn switches.Although there was a reduction in the cpu utilization of router cores a and b, it was discovered that several switches, and the access point (ap) were offline.The fse checked all the switches and looked through each intermediate distribution frame (idf) closet.Each of the idf closets err-disable ports issue was resolved, and the system began to function normally again.The fse discovered several switches with only one connection and 2 switches that were offline.The fse fixed all links and got all switches back online.It was determined the cause of the reported problem was the cisco switches.The device was operational after configuration changes were made.It was recommended that the cores be eventually upgraded to 16.6.8.The investigation concludes that no further action is required at this time.
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