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Cluster Network *Failed* RRS feed

  • Question

  • Hello,

    When we run the 'Test-ExchangeServerHealth.ps1' from SysInternals on our Exchange environment the check for Cluster Network reports *Failed*. We have an IP-less DAG setup. I'm new to DAG setups so any help will be highly appreciated.

    If we run the PowerShell cmled Get-ClusterNetwork we get the following result:

    [PS] C:\Windows\system32>Get-ClusterNetwork | ft Name,Address,AddressMask,Role,State -AutoSize

    Name              Address     AddressMask   Role State
    ----              -------     -----------   ---- -----
    Cluster Network 1 192.168.1.0 255.255.255.0    3    Up
    Cluster Network 3 192.168.0.0 255.255.0.0      3  Down

    When we run the cmld Get-DatabaseAvailabilityGroupNetwork:

    [PS] C:\Windows\system32>Get-DatabaseAvailabilityGroupNetwork | ft Name,Subnets,MapiAccessEnabled,ReplicationEnabled -AutoSize

    Name                    Subnets                 MapiAccessEnabled ReplicationEnabled
    ----                    -------                 ----------------- ------------------
    MapiDagNetwork          {{192.168.0.0/16,Down}}              True               True

    ReplicationDagNetwork01 {}                                   True               True

    As mentioned, any help would be great!

    Regards,

    Robbert


    • Edited by RobbertvL Wednesday, May 1, 2019 8:25 AM
    Wednesday, May 1, 2019 8:24 AM

All replies

  • Hello,

    When we run the 'Test-ExchangeServerHealth.ps1' from SysInternals on our Exchange environment the check for Cluster Network reports *Failed*. We have an IP-less DAG setup. I'm new to DAG setups so any help will be highly appreciated.

    If we run the PowerShell cmled Get-ClusterNetwork we get the following result:

    [PS] C:\Windows\system32>Get-ClusterNetwork | ft Name,Address,AddressMask,Role,State -AutoSize

    Name              Address     AddressMask   Role State
    ----              -------     -----------   ---- -----
    Cluster Network 1 192.168.1.0 255.255.255.0    3    Up
    Cluster Network 3 192.168.0.0 255.255.0.0      3  Down

    When we run the cmld Get-DatabaseAvailabilityGroupNetwork

    [PS] C:\Windows\system32>Get-DatabaseAvailabilityGroupNetwork | ft Name,Subnets,MapiAccessEnabled,ReplicationEnabled -AutoSize

    Name                    Subnets                 MapiAccessEnabled ReplicationEnabled
    ----                    -------                 ----------------- ------------------
    MapiDagNetwork          {{192.168.0.0/16,Down}}              True               True

    ReplicationDagNetwork01 {}                                   True               True

    As mentioned, any help would be great!

    Regards,

    Robbert

    Wednesday, May 1, 2019 8:26 AM
  • Hi Robbert,

    When you configure network for DAG, the MAPI network interface should be configured with:

    • a default gateway
    • at least one DNS server
    • “Register this connection's addresses in DNS” enabled

    The replication network interfaces, if there are any, should be configured with:

    • no default gateway
    • no DNS servers
    • “Register this connection's address in DNS” disabled
    • static routes if the network will span multiple IP subnets

    Please verify the network settings are correct. For your reference:

    Misconfigured Subnets Appear in Exchange Server 2013 DAG Network

    Please note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. And the changes made in the above blog is not supported officially by Microsoft.

    If all settings are correct, could you please run the following command to provide more detailed error message?

    Get-ClusterNetwork | fl

    Get-DatabaseAvailabilityGroupNetwork | fl

    Regards,

    Dawn Zhou


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

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    Thursday, May 2, 2019 5:09 AM
    Moderator
  • Hi,

    Just checking in to see if above information was helpful.

    If you would like further assistance, please feel free to reply this post directly so we will be notified to follow it up. If the issue has been resolved, don't forget to mark it as answer, this will be easy for other community members to find the useful one. Thanks for your understanding.

    Regards,

    Lydia Zhou


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Wednesday, May 8, 2019 7:12 AM
    Moderator