Source servers that belong to different Active Directory sites were detected for the connector in routing tables

 

Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Operations Manager monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.

To learn more about this alert, if you are using Microsoft Operations Manager 2005, do one or more of the following:

  • From the Operator Console, select this alert, and then click the Properties tab. Review the description of the alert that includes the variables specific to your environment.

  • From the Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description. Review the events that have been logged that meet the criteria of this Operations Manager alert.

To learn more about this alert, if you are using System Center Operations Manager 2007, do one or more of the following:

  • From the Operations Console, double-click this alert, and then click the General tab. Review the description of the alert that includes the variables specific to your environment.

  • From the Operations Console, double-click this alert, and then click the Alert Context tab. Review the events that have been logged that meet the criteria of this Operations Manager alert.

Details

Product Name

Exchange

Product Version

8.0 (Exchange Server 2007)

Event ID

5026

Event Source

MSExchangeTransport

Alert Type

Warning

MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Common Components/Hub Transport and Edge Transport/Transport

MOM Rule Name

Source servers that belong to different Active Directory sites were detected for the connector in routing tables. Only the closest site will be used. Load-balancing will be affected.

Explanation

This Warning event indicates that a Microsoft Exchange Server 2007 Send connector or foreign connector has been configured to use source servers that are located in different Active Directory directory service sites. When routing to this connector, the source Hub Transport server routes to the closest source server only. Configuring more than one source server for a connector provides load balancing. However, when the source servers are located in different Active Directory sites, load balancing across the source servers does not occur. For more information, see Load Balancing and Fault Tolerance for Transport Servers.

User Action

To resolve this error, do the following:

  • Modify the connector to specify source servers from only a single Active Directory site. You can also configure a connector with the same address space in each Active Directory site, specifying source servers from only the home Active Directory site. Load balancing will not occur across the connectors. If you do this, routing will always select the connector with the lowest cost, proximity, and finally the lowest alphanumeric name.

  • If the recommended steps do not resolve this error, contact Microsoft Customer Support Services. For more information about how to contact support, visit the Microsoft Help and Support Web site.

For More Information

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.

To review Exchange 2007 event message articles that may not be represented by Exchange 2007 alerts, see the Events and Errors Message Center.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.