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QuestionReflector Service not stable

  • Friday, November 30, 2007 11:37 AMFrankJ Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    LS,

     

    At the moment we suffer some issues regarding our own Reflector Service. There's no problem contacting the institutes but students have lots of trouble logging on. Some examples:

     

    • One moment the student is able to participate with sound and vision but at the next moment for the same student sound and vision will no longer be send allthough the student will still be present in the venue.
    • Student is not visible as participant in the venue and can not send sound and vision. The student is however able to hear and see the teacher.
    • Student is not able to enter the venue.

     

    When students change the reflector service from reflector1.eminus.nl to conferencexp-reflector.commons.internet2.edu or reflector.conferencexp.net all participants will be visible in a few seconds and can be heared ans seen in the venue.

     

    I hope somebody can link the issue described and give me a clue that points in the right direction.If i need to provide some more detailed information please let me know.

     

    Regards,

     

    Frank

     

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  • Friday, November 30, 2007 3:21 PMJason Van Eaton - MSFTMSFTUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Hi Frank,

     

    My first question - Is everyone connecting to your reflector or do you have some multicast clients?  I need a better understanding of how many connections we are talking about.

     

    If our 2 Reflectors are working, but yours is causing the trouble, then I imagine one of the following problems must exist...

     

    1.  Your Reflector machine has network connectivity issues.

    2.  Your Reflector doesn't have enough bandwidth.

    3.  Your Reflector needs a better network card.

    4.  Your Reflector needs more RAM or CPU or ...

     

    A Reflector really shouldn't require too many resources.  It simply receives packets and forwards them, which is a pretty straight forward and low overhead function.  I think something network related is most likely.

     

    You should be able to look at the Reflector performance counters to see how much data it is receiving and sending, and then check how much data is being sent and received on the client sides as well.  The numbers should all line up.

     

    Any chance there is a proxy or a firewall in the way?

     

    JVE