Bosch Building Technologies

    Multicast doesn't seem to be working on my Telex Dispatch system, what should I do?

    Question

    Multicast doesn't seem to be working on my Telex Dispatch system - what are good next steps to troubleshoot for possible network issues?

     

    Answer

    The problem can come from many reasons, the two most common are the following:

    1. The TTL value entered isn't high enough for the number of router hops and Multicast packets are being pruned by the network before reaching the end point unit.  Try increasing the TTL value.

    2. By default WAN or Layer 3 networks will not pass multicast traffic, a good next step to test overall port number addressing.  Configure a number of devices for "point to point" Unicast instead of "point to multi-point" Multicast.
     
    Enter the IP address of the far end IP unit into the Multicast address field of the local IP unit.  Do this for both ends.

    If console and radio traffic now work using Unicast the network is not configured correctly for Multicast traffic an you need to work with the IT manager for resolution. 
     
     
     
     


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