Symptoms
Example of the events received:
From: Switch_Name [10.x.x.x]
Correlation Event
Severity: Warning
Date: Tue Dec 20 02:56:49 EET 2022
Description: Switch_Name.F_PORT.10/32.Port_Name, F-Port 10/32, Condition=ALL_HOST_PORTS(ITW/min>21), Current Value:[ITW, 30 ITWs], RuleName=defALL_HOST_PORTSITW_21, Dashboard Category=Port Health.
Source Address : 10.x.x.x
Source Name : Switch_Name
Product Address : 10.x.x.x
Port Details: N/A
Auto generated Tue Dec 20 04:37:17 EET 2022. Event Action: MAPS_Event_Action_for_monitoring_ITW
From SANnav logs the same error is seen for other events:
faultmgmt-be - [ERROR] 2022-12-20 02:55:51.825 [FaultCoreServicepool-26-thread-2] com.brocade.dcm.fault.actionhandler.EmailAction - Exception while executing email action for MAPS_Event_Action_for_monitoring_ITW : Could not connect to SMTP host: smtp.server1.com, port: 25, response: 421
faultmgmt-be - [ERROR] 2022-12-21 15:08:22.039 [FaultCoreServicepool-26-thread-1] com.brocade.dcm.fault.actionhandler.EmailAction - Exception while executing email action for MAPS_Event_Action_for_RX_Power : Could not connect to SMTP host: smtp.server1.com, port: 25, response: 421
From the Switch side it seems like emails could not be delivered:
2022/12/20-03:00:01:477199, [MAPS-1206], 4615/2106, SLOT 2 | CHASSIS, INFO, Switch_Name, A MAPS email notification sent from the switch could not be delivered to Email server
2022/12/20-04:00:00:702185, [MAPS-1207], 4631/2121, SLOT 2 | CHASSIS, INFO, Switch_Name, There were 2 email delivery errors in the last hour
Cause
The messages suggest that the configuration is correct but perhaps there was a network issue then that caused the alerts to fail or be delayed.
Resolution
The issue was related to the configuration of the Exchange mail hub which was resolved after changing the "mail hub" and correcting relay server directions.
