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Ask about "White Space" keep alive package on Lync client 2010 RRS feed

  • Question

  • Hi everybody,

    I am writing own client which can login on lync server 2010. Now I got problem on keeping the client alive. I used network monitor deencryptor (NMDencrypt) to view exactly what packages lync client 2010 was sent. I got 5 packages on 5 times following (in hexa):

    20 00 00 00 00 10 0D 0A F0 B5 0A

    20 00 00 00 00 10 F3 B7 0A

    20 00 00 00 00 10 C2 E1 8F 13 30 A0

    20 00 00 00 00 10 D0 6C D3 CC 05 00

    20 00 00 00 00 10 F1 37 0A

    It seems that the keep alive was formed by a prefix: 20 00 00 00 00 10  + "some bytes".

    But I can not figure out how "some bytes" generated?

    could you please let me know this? thank you very much.

    Regards,

     

    Tuesday, April 8, 2014 4:01 AM

Answers

  • Hi alexlongnguyen,

    As I replied on the other thread in this forum regarding your keep-alive question, I think here also you should refer to [MS-CONMGMT], section 3.4 where the keep-alive mechanism is described in detail.  I'm not sure about the bytes you've shown here, but the keep-alive message as defined in section 2.2, is a double CRLF, or 0x0d 0x0a 0x0d 0x0a.

    I hope that helps,

    Best regards,
    Tom Jebo
    Escalation Engineer
    Microsoft Open Specifications

    Thursday, April 24, 2014 3:29 AM
    Moderator

All replies

  • Hi alexlongnguyen, thank you for your question. A member of the protocol documentation team will respond to you soon.


    Josh Curry (jcurry) | Escalation Engineer | Open Specifications Support Team

    Tuesday, April 8, 2014 2:21 PM
    Moderator
  • Hi alexlongnguyen,

    I will work with you on this.  I will try to get back to you with a response in the next day or at least by Monday. Thanks for your patience.

    Best regards,
    Tom Jebo
    Microsoft Open specifications

    Thursday, April 10, 2014 8:51 PM
    Moderator
  • Hi Tom,

    Did you have any clue about my question?

    Thanks for your concerning

    Thursday, April 17, 2014 7:27 AM
  • Hi alexlongnguyen,

    I apologize for the delay.  It will take another day or two to get an answer for you. I appreciate your patience.

    Tom

    Tuesday, April 22, 2014 4:08 AM
    Moderator
  • Hi Tom,Thanks for informing that, I will wait for your answer.
    Wednesday, April 23, 2014 3:39 AM
  • Hi alexlongnguyen,

    As I replied on the other thread in this forum regarding your keep-alive question, I think here also you should refer to [MS-CONMGMT], section 3.4 where the keep-alive mechanism is described in detail.  I'm not sure about the bytes you've shown here, but the keep-alive message as defined in section 2.2, is a double CRLF, or 0x0d 0x0a 0x0d 0x0a.

    I hope that helps,

    Best regards,
    Tom Jebo
    Escalation Engineer
    Microsoft Open Specifications

    Thursday, April 24, 2014 3:29 AM
    Moderator