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Does ZigBee router forward broadcast?

Kui Liu
Prodigy 90 points

Other Parts Discussed in Thread: Z-STACK

Hi Kjetil,

After reading your FAQ post (http://community.ti.com/forums/t/426.aspx) I was wondering whether you or anyone in the forum could help me with the following question:

Does ZigBee router forward broadcast? I tried a test showing that it doesn't. But some theory shows that it does. I'm confused.

I'm using ZStack-1.4.3-1.2.1. Thanks！

  • 0
    TI__Prodigy 550 points

    Hello Kui Liu

    We took the freedom to split your question into a seperate thread here as it is not really related to the FAQ where you posted it. Hope that is fine with you.

    Now coming to your question:

    Yes, routers do forward broadcast messages.

    So now I wonder why you think they don't? Did you have a look at a sniffer log (e.g. using the free sniffer from TI - http://focus.ti.com/docs/toolsw/folders/print/packet-sniffer.html)?

    As you are using Z-Stack 14.3-1.2.1 you could quickly try out one of the sample applications; e.g. the SampleLight and SampleSwitch in C:\Texas Instruments\ZStack-1.4.3-1.2.1\Projects\zstack\HomeAutomation and the sniffer to see that routers do forward packets. Simply built up a scenario using a coordiantor and 1 or several routers. (More details about the sample application can be found in Chapter 5 of the C:\Texas Instruments\ZStack-1.4.3-1.2.1\Documents\Z-Stack Sample Applications (F8W-2006-0023).pdf).

    If you now turn them on and run the sample application you should be able to see in the sniffer that the routers retransmit packets that were send as broadcast using short address 0xFFFF.

    Best regards,

    Kite