hi ,a question about that enddevice rejoin failure when permit join function is fasle.

no anybody come across to this same quetion?

and i research this question deeply

and if a reflash device try to join a router .if the router or coordinator does not permit device to join (NLME_PermitJoiningRequest(0)).

and the device will use 'nwk_getNwkDescList' to find the router list .and the return struct like this:

typedef struct
{
  uint16 panId;
  byte logicalChannel;
  byte routerCapacity;
  byte deviceCapacity;
  byte version;
  byte stackProfile;
  uint16 chosenRouter;
  uint8 chosenRouterLinkQuality;
  uint8 chosenRouterDepth;
  uint8 extendedPANID[Z_EXTADDR_LEN];
  byte updateId;
  void *nextDesc;
} networkDesc_t;

and

pNwkDesc->deviceCapacity =0  so it mean there are not any router can join. yes it is right.

     else if ( ZSTACK_END_DEVICE_BUILD )
      {
        if ( !pNwkDesc->deviceCapacity )
        {
          continue;
        }

but  if a device loss it's parent ,and then it resume failure .it will rejoin to the network.and it will discoery the network.then it will run the same process just like the "join mode"   it will use 'nwk_getNwkDescList'  too.(use "ZDApp_NwkDescListProcessing" first )

and then i just see pNwkDesc->deviceCapacity =1(the router on the network is not permit join too)

so i don't know how does the network deal with the "join mode "and the "rejoin mode"

but i am sure that rejoin mode need not the "permit join " function from the specification.

and the "pNwkDesc->deviceCapacity " just mean whether  there are rest position on the router's AssociatedDevList. and i guess it have no relationship about the "permit join " function.

but i debug the "join mode " device ,and TI stack use this judgement to refuse the device to join:
      else if ( ZSTACK_END_DEVICE_BUILD )
      {
        if ( !pNwkDesc->deviceCapacity )
        {
          continue;
        }

it is mean that if the router does not permit join.so the pNwkDesc->deviceCapacity will be false.so the new join device will join failure .but why when  "rejoin mode "device try to rejoin to the router ,why pNwkDesc->deviceCapacity is true,and rejoin mode device just run the same process with the join mode device .and just run "ZDApp_NwkDescListProcessing" first ,and then run 'nwk_getNwkDescList'  .

and when many device (20) rejoin to a router together.and some device can sucessfully.and the rest will be failure . and these failure  device will get "pNwkDesc->deviceCapacity =0 " resault when they run the 'nwk_getNwkDescList'  .because i have no code of 'nwk_getNwkDescList'  .so i am very confuse it.

if someone know about it ,pls help me.

Hi,

I met the similar problem with Z-Stack 2.4.0.

Did you find the way to solve this problem?

Douglas

Dears,

I have suffered from this problem since Zstack 2.2.2. After I migrate to Zstack 2.3.1 later and then to ZStack 2.5.0 now, this problem is still there. Just the same as describe as above. Don't any TI R&D have this problem and help to give any solution?