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Lync for Mac with DNS Loadbalancing and CAC RRS feed

  • Question

  • Hi,

    is it true that Lync for Mac cannot use DNS Loadbalancing and Call Admission Control?

    BR

    Thursday, April 12, 2012 4:17 PM

Answers

All replies

  • Hi,

    The DNS load balancing and call admission control all works on Lync FE server. All Lync client access flow to lync server can be processed by Lync server DNS LOAD balancing and CAC, include lync for Mac.


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    Friday, April 13, 2012 8:59 AM
  • Hi Sean,

    i mean DNS Loadbalancing in a Client point of view. If on of my front end servers fails is the client aware of another possible available FE server? Lync 2010 for Windows can see all FE servers behind a pool A-record. Will Lync 2011 for Mac use the same logic? Another DNS LB feature is server draining. Can Lync for Mac see that a FE server is in drained mode and wont conect?

    CAC is client feature too and because Communicator 2007 R2 cannot use CAC i  fear Lync for Mac 2011 cant use it too.

    see: http://technet.microsoft.com/en-us/library/ff731056.aspx

    Call admission control is enforced at the client level. It is enforced by the receiving client not the call initiating client as explained earlier in the “Design” section of this article. Because only Lync 2010 is call admission control aware, clients such as Communicator 2007 R2 and Communicator 2007 won’t enforce call admission control when those clients are the recipients.

    Friday, April 13, 2012 9:25 AM
  • Hi,

    Dns load balancing is supported for lync for mac 2011. When a Lync FE server is down, the lync for mac 2011 can be registered to other FE servers automatically.

    CAC is also supported for lync for mac 2011. The lync for mac 2011 is one of lync clients. CAC works on lync FE server. When lync FE server find a call to its client, it will check which region and subnet the client is in and decision the CAC policy to use on it. The office communicator 2007 or r2 has not CAC feature. So the ocs server can not process the incoming call with CAC on its client.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    • Marked as answer by Sean_Xiao Friday, April 20, 2012 1:10 AM
    • Unmarked as answer by Wolfgang Bach Wednesday, May 2, 2012 5:47 PM
    Monday, April 16, 2012 3:08 AM
  • We apologize for the confusion but we have followed up with the program managers and will be updating the technet client matrix to reflect these updates. http://technet.microsoft.com/en-us/library/gg425836.aspx

    None of these are supported today

    1. CAC
    2. Skill Search
    3. DNS Load Balancing

    Tom Laciano Microsoft Program Manager Lync Online - Dedicated

    Wednesday, May 2, 2012 5:19 PM
  • Hi Tom,

    thanks for your feedback. Will the missing features be implemented later to Lync 2011? If so when will it be?

    Best regards

    Thursday, May 3, 2012 10:01 AM
  • It is unlikely the features will be added to the Lync for Mac 2011 client but instead be considered for a future version.

    The key is for customers to report the problem back through the sales channel or through their premier account teams.


    Tom Laciano Microsoft Program Manager Lync Online - Dedicated

    Thursday, May 3, 2012 11:45 AM