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OCS to Lync - FE Connectivity for user migration

Unanswered OCS to Lync - FE Connectivity for user migration

  • Wednesday, July 18, 2012 5:33 PM
     
     
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    Hey folks,

    I have an environment where I am migrating from OCS to Lync, however the two environments exist in seperate datacenters without a trusted vpn/mpls connection between them.  therefore, common network connectivity between the OCS and Lync FE's is not pre-existing.

    that said, i've completed the topology merge and enablement.  I am able to communicate between pools, however when i go to move a legacy user into a lync pool - i get the following error...

    Move-CsLegacyUser : Unable to connect to some of the servers in pool "QBERT.fqdn.com" due to a Distributed Component Object Model (DCOM) error.  Veri
    fy that Front End service is running on servers in this pool. If the pool is se
    t up for load balancing, verify that load balancer is configured correctly.
    At line:1 char:18
    + Move-CsLegacyUser <<<<  "lynctest03" -Target "lync-pool.fqdn.com" -Verbose
        + CategoryInfo          : InvalidOperation: (CN=lynctest03,O...DC=xxxxx,DC
       =yyy:OCSADUser) [Move-CsLegacyUser], MoveUserException
        + FullyQualifiedErrorId : MoveLegacyUserError,Microsoft.Rtc.Management.AD.
       Cmdlets.MoveOcsLegacyUserCmdlet

    regular sip/media connectivity ports are open between the two FE's --- OCSWMIBC has been installed and rebooted on both Lync FE's.

    The error makes me think I need to have 135 open for DCOM RPC access, but that port will be a little harder for me to get security to open.  I can do it, but i'd like to confirm thats what this error is trying to tell me.


     

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  • Wednesday, July 18, 2012 5:56 PM
     
     
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    You are correct it is port 135 that needs to be open. If you are using pools you can use hosts files to ensure that RPC only needs to be opened between two specific servers as opposed to the HLB. This may help you get the change pushed through a little easier.
     
  • Thursday, July 19, 2012 7:55 AM
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    Hi,John,

    Would you please check the solutions in the below links also apply to your question?

    http://www.bibble-it.com/2011/03/22/unable-to-move-lync-user-dcom-error 

    http://dalefontenot.blogspot.com/2010/12/blog-post-issue-when-moving-legacy.html

    B/R

    Sharon

    Sharon Shen

    TechNet Community Support

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