topic Re: [MC13213] - Zigbee nwkNeighborTable update in 8-bit Microcontrollers

[MC13213] - Zigbee nwkNeighborTable update

CecchiSandrone — Tue, 18 Dec 2007 00:34:05 GMT

Hi all,

I don't understand how nwkNeighborTable is updated by network layer. For example I'm seriously interested in the value of LQI field; from Zigbee specifications (3.7.1.4 page 341): "A table entry shall be updated every time a device receives any frame from the corresponding neighbor". But from what I see the LQI field remains the same even if I move the neighbor away from the device. In particular, for ZC the value is always FF, while for ZR the value is relative to the instant when the child joins network

Message Edited by Cecchi Sandrone on 2007-12-17 05:44 PM

Re: [MC13213] - Zigbee nwkNeighborTable update

Mads — Tue, 18 Dec 2007 16:25:51 GMT

Cecchi,

the easiest way for you to check the link quality of a node is in the APSDE-Data.indication.

Just check the following in the BeeAppIndication() :

uint8_t CurrentLqi;

CurrentLqi = pMsg->msgData.dataIndication.linkQuality

This will allow you to read the lqi the packet was received with.

Br,

Mads

Re: [MC13213] - Zigbee nwkNeighborTable update

CecchiSandrone — Tue, 18 Dec 2007 17:33:30 GMT

Yes Mads, I know this. But for my application can be useful to retrieve LQI of neighbor links, all in one time from nwkNeighborTable. I can't understand when this table is updated.

Re: [MC13213] - Zigbee nwkNeighborTable update

zoz — Thu, 13 Mar 2008 21:30:00 GMT

I have the same problem ... Could you solve it somehow? How can we make the stack updating the neighbor table? If the stack does not update the neighbor table, it does not meet the ZigBee Specification.

Re: [MC13213] - Zigbee nwkNeighborTable update

CecchiSandrone — Thu, 13 Mar 2008 22:06:06 GMT

Yes zoz, I think it too. However it seems that this problem will be fixed in the next release of the stack.