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More Info about the Stochastic Addressing

Hi

      why does  a  ZED  always  get  the  same short address , nomatter  it had doing factory reset  then rejoin the network?

      3.2.2 Stochastic Addressing
ZigBee PRO uses a stochastic (random) addressing scheme for assigning the network addresses. This addressing
scheme randomly assigns short addresses to new devices, and then uses the rest of the devices in the network to
ensure that there are no duplicate addresses. When a device joins, it receives its randomly generated address from
its parent. The new network node then generates a “Device Announce” (which contains its new short address and its
extended address) to the rest of the network. If there is another device with the same short address, a node (router)
in the network will send out a broadcast “Network Status – Address Conflict” to the entire network and all devices
with the conflicting short address will change its short address. When the conflicted devices change their address
they issue their own “Device Announce” to check their new address for conflicts within the network.

   

     1.  who generated  the short address ?  the ZED  or The ZC ?

     2.  does  it  coule not  changed ?   when generated , it will keep all  the time ?