Replication Status Test

This test summarizes the replication state and relative health of an Active Directory forest by inventorying and contacting every domain controller in the forest, and collecting and reporting information such as replication deltas and replication failures. You can thus accurately identify the domain controllers that are prone to frequent failures.

Target of the test : An Active Directory or Domain Controller

Agent deploying the test : An internal agent

Outputs of the test : One set of results for every domain controller in an Active Directory forest being monitored

Configurable parameters for the test
Parameters Description

Test period

This indicates how often should the test be executed.


The IP address of the machine where the Active Directory is installed.


The port number through which the Active Directory communicates. The default port number is 389.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Total replication links

Indicates the number of replica links for this domain controller.


A replica link exists for each naming context on a domain controller. This measure is the sum total of such replica links per domain controller. Please note that this is not the connection objects or replication partners per domain controller.

You can use the detailed diagnosis of this measure to view the complete details of the replica links - this includes the source and destination sites, the source and destination domain controllers, the transport type, the number of link failures (if any), and details of the failures such as when the failure occurred and the failure status.  

Replication links failure

Indicates the total number of replica links on this domain controller that are failing to replicate for one reason or the other. This will never be greater than the Total field.


Ideally, the value of this measure should be 0.

Percent of replication links failure

Indicates the percentage of failures in relation to the total replica links on this domain controller.


A low value is desired for this measure. A value close to 100% is a cause for concern, as it indicates that almost all replica links are failing. 

Longest replication gap

Denotes the longest replication gap amongst all replication links on this domain controller.


Ideally, this value should be less than 1 hour.