A philips remote service engineer (rse) obtained some details via troubleshooting performed.The rse indicated that many distribution (dist) and access switches showed offline and were not ping-able from the core router.Core router does not show them in cisco discovery protocol (cdp) neighbor output.The rse advised the customer biomedical engineer (biomed) to reboot the distb devices on various floors and the philips patient information center ix (pic ix) surveillances reconnected.The rse logged into dista's and saw that the uplinks were error-disabled due to loopback.The biomed was able to restart the remaining switches, and all surveillances were back online.A philips field service engineer (fse) went onsite for root cause analysis and determined that some units were having disconnections from the primary server due to fiber ports in the error disabled state.Corea: port 2 was in down status ,re-enabled port 25 on g412dista switch.Port 6 was in down status , re-enabled port 25 on g267dista switch.Core b: port 3 was showing unstable connection, changed port from 25 to 28 on 1114distb switch.The fse recommended to re-certify/test fiber runs specifically for: - g412dista, g267dista, 1114distb, switches and monitor/observe fiber connection status on the cores.Based on the information available and the testing conducted, the cause of the reported problem were disconnections from the primary server due to fiber ports in the error-disabled state.The reported problem was confirmed.The affected ports were enabled by the engineer by performing a system reboot and reconnection was reestablished.The investigation concludes that no further action is required at this time.
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