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About 2 Coordinator with Random PAN-ID and Same Channel

guru raj.m
Prodigy 60 points

Other Parts Discussed in Thread: Z-STACK

hi,

i am new for this Zigbee,

i am working on CC2530ZNP. i have few question, Can anybody answer plz?

- when 2 Coordinator with Fixed Channel number say Ch no = 11, with Same PAN ID say 0x1234 with same Security key on Both side are powered up at the same time or with 1 second time differences, what will happen?

-   when 2 Coordinator with Fixed Channel number say Ch no = 11, with Random PAN ID,with same Security key on Both side are powered up at the same time or with 1 second time differences, what will happen?

thank you,

  • 0
    TI__Genius 16570 points

    Hi,

    the second coordinator who is brought up later will select another PANID. In the specific case, it will be 0x1235

    Thanks,

    TheDarkSide

  • 0 in reply to TheDarkSide
    Prodigy 30 points

    hey,

    what will happen if the two networks are powered up out of range and then meet each other?

    know someone?

    Thanks

  • 0 in reply to Hauke Ju
    TI__Genius 9325 points

    Hi Hauke,

    PANID conflict resolution is implemented in Z-Stack. When a coordinator/router receives Beacon packet which has been broadcast by another coordinator/router, it will check both the PANID and the extended PANID conveyed by the Beacon packet. If it notices that the PANID matches its own but the extended PANID doesn't, it will report PANID conflict situation to the network manager as which normally the coordinator acts so that the network manager changes PANID and requests all the nodes in the network to follow.

    - Cetri