Why Short Address Change?

YUSUKE YAMADA

Hi,

I have a problem with routers. I’ve encountered routers change their short addresses unexpectedly (no new node joins).

1) There are one zigbee coordinator and a several zigbee routers (sensors).

2) The application on the host PC, which connected to the coordinator through serial port, collects data from the zigbee routers. The application specifies short addresses that initially assigned to the zigbee routers.

3) A couple of days later, some short addresses of the zigbee router change. Subsequently, the application cannot get data because it uses old short addresses. During the measurement, I set the coordinator to diallow joining all the time, so no newly node adds to the network.

I understand “address conflict resolution” might happen in Stochastic Addressing. But it does happen only when a newly node join to the network, right? I’m wondering what causes address-change...

Thanks,

over 14 years ago

0 Dirty Harry over 14 years ago

TI__Mastermind 19350 points

It seems that your test setup is not valid because there is no way to manually assign a network address to a router - however you hack in an arbitrary network address probably leaves data structures within the NWK libraries out of sync. Alternatively, your routers may not have unique IEEE addresses.

0 YUSUKE YAMADA over 14 years ago in reply to Dirty Harry

Prodigy 100 points

The router's initial addresses are assigned by the coordinator (or other routers). The application on the host PC read addresses out using UTIL_GET_DEVICE_INFO or ZDO_IEEE_ADDR.

0 Kyle Zhou over 11 years ago

Expert 1240 points

Have you resolved the problem? I am having exactly the same issues now and have no ideas what could be the cause.

0 TheDarkSide over 11 years ago in reply to Kyle Zhou

TI__Genius 16570 points

Please take a look at this post: http://e2e.ti.com/support/wireless_connectivity/f/158/t/297006.aspx

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Why Short Address Change?