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EMC Smarts Application Connectivity Manager User’s Guide 3
Analysis Scenarios
System Unresponsive
System Unresponsive is a root-cause problem that indicates that a system’s
protocol endpoints are not responding to ICMP or SNMP polls and that
connections to applications hosted by the system are down. Application
Connectivity Monitor diagnoses the System Unresponsive problem when it
receives an UnresponsiveSymptom from IP Availability Manager.
Analysis Scenarios
This section uses three different topology scenarios to illustrate how
Application Connectivity Monitor (ACM) diagnoses problems. In each
scenario, Application Connectivity Monitor monitors the application by
regularly establishing a TCP connection with the managed application on
the specified TCP port. In addition, Application Connectivity Monitor
receives network and systems availability information from IP Availability
Manager.
Single Application and Single TCP Check
In the following scenario, a mail server, SMTPService, is hosted by
host1.example.com, as shown in Figure 1.