How to Suppress Link State Information on a Server

  • Article

 

You can use Network Monitor (Netmon.exe) or the remonitor.exe tool in monitor mode to identify and address the root causes of oscillating connections. Additionally, if the oscillating connections are causing excessive propagation traffic, you can suppress the propagation of link state changes until you solve the root cause.

It is important to understand that changing this registry key does not stop the propagation of the link state table across servers. It suppresses only the link state traffic that is caused by a connector state change.

Warning

Incorrectly editing the registry can cause serious problems that may require you to reinstall your operating system. Problems resulting from editing the registry incorrectly may not be able to be resolved. Before editing the registry, back up any valuable data.

Before You Begin

Before you perform the procedure in this topic, read Troubleshooting Routing.

The following permissions are required to perform this procedure:

  • Member of the local administrators group

Procedure

  1. Start Registry Editor (regedit)

  2. Navigate to and right-click the following key:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RESvc\Parameters

  3. On the Edit menu, click Add Value, and then add the following registry value:

    Value Name: SuppressStateChanges

    Data Type: REG_DWORD

    Data: 1

    Radix: Decimal

  4. Close Registry Editor.

  5. Restart the following services:

    • Microsoft Exchange Routing Engine (RESvc)

    • SMTP Service (SMTPSVC)

    • Microsoft Exchange MTA Stacks (MSExchangeMTA)

For More Information

For more information about suppressing link state traffic, see "Suppressing Link State Traffic for Connectors" in Advanced Routing Configuration.