End ZigBee Network Steering Before Join Timeout Ends

[WestCoastDaz]

Hi DevZone Team,

Is there a way to stop the ZigBee network steering after a device has successfully joined instead of waiting for the timeout to expire?

Thanks

[Jørgen Holmefjord]

Hi,

I cannot find any APIs to do this, and also the spec says that the minimum commissioning time (bdbcMinCommissioningTime) should be set to 180s.

Best regards,
Jørgen

[WestCoastDaz]

Thanks for looking into this Jorgen.

[tomchy]

Hi,
since I was looking at a related case, I came up with the following solution:

static void network_close_global_cb(zb_bufid_t buf)
{
    NRF_LOG_INFO("Network closed");
    if (buf)
    {
        zb_buf_free(buf);
    }
}

static void network_close_global(zb_bufid_t buf)
{
    zb_zdo_mgmt_permit_joining_req_param_t * p_req;

    NRF_LOG_INFO("Zigbee network closed locally...");

    p_req = ZB_BUF_GET_PARAM(buf, zb_zdo_mgmt_permit_joining_req_param_t);
    p_req->dest_addr = ZB_NWK_BROADCAST_ROUTER_COORDINATOR;
    p_req->permit_duration = 0;
    p_req->tc_significance = 1;

    zb_zdo_mgmt_permit_joining_req(buf, network_close_global_cb);
}

void network_close(zb_bufid_t buf)
{
    zb_zdo_mgmt_permit_joining_req_param_t * p_req = NULL;

    if (!ZB_JOINED())
    {
        return;
    }

    if (buf == 0)
    {
        (void)zb_buf_get_out_delayed(network_close);
        return;
    }

    NRF_LOG_INFO("Close Zigbee network...");

    p_req = ZB_BUF_GET_PARAM(buf, zb_zdo_mgmt_permit_joining_req_param_t);
    p_req->dest_addr = ZB_PIBCACHE_NETWORK_ADDRESS();
    p_req->permit_duration = 0;
    p_req->tc_significance = 1;

    zb_zdo_mgmt_permit_joining_req(buf, network_close_global);
}

It is true, that the BDB forces you to open the network for 180 seconds, but it does not prevent you from issuing permit join request, specified in Zigbee PRO specification .

Kind Regards,

Tomchy

[L.Hoffmann]

Hi.
I am developing a zigbee coordinator. To open and close the network I also use the zb_zdo_mgmt_permit_joining_req request.
When I open the network and the callback function is called (zdo_mgmt_permit_joining_req_cb) I evaluate the answer from the buffer using the struct zb_zdo_mgmt_permit_joining_resp_s.
It seems as if the status in zb_zdo_mgmt_permit_joining_resp_s always contains the duration time I transmitted with the request. If that correct?

Is there a possibility to read the current joining state of the network?

Best regards,

Lutz