eG Monitoring
 

Measures reported by Exc2013ETELatTest

Periodically, administrators need to monitor how long end-to-end message flow takes, so that probable slowdowns in mail delivery can be proactively detected and resolved, before users complain. To achieve this, administrators can use the Exc2013ETELatTest test.

This test monitors end-to-end mail flow, classifies latencies as high, medium, and low, and for each such classification, reports the maximum time taken by the server for transporting mails from one end to another, 90%, 95%, and 99% of the time. This way, the test leads administrators to current/probable bottlenecks in mail flow.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Per90_ete_lat Indicates the maximum time taken for end-to-end email message flow 90% of the time. Secs If the value of these measures are consistently high, it could indicate bottlenecks in email flow. The reason for the same has to be ascertained and resolved, so that there is an uninterrupted flow of emails end-to-end.

High latencies can be triggered by one or more of the following reasons:

  • A networking issue exists.
  • The Transport component of the Microsoft Exchange 2013 is under a heavy load.
  • Some messages have been sent to large distribution groups.
  • A Transport Agent issue exists. For example, the antivirus agent or Rights Management Services agent may be experiencing an issue.
Per95_ete_lat Indicates the maximum time taken for end-to-end email message flow 95% of the time. Secs
Per99_ete_lat Indicates the the maximum time taken for end-to-end email message flow 99% of the time. Secs