Is there any standard mechanism, supported by NXP for sending long packets(like DLMS/COSEM) using ZigBee PRO stack except Tunneling?

[arthurpulatov]

We need to built large data acquiction systems using JN51xx, and need to communicate using DLMS/COSEM standart.
We tried to use SE tunneling cluster, presented in the JN-AN-1135 example, but it contains errors and works unstable for packet retransmission. 

So maybe exist something simplier mechanizm witch can use the standard tools of the ZigBee Pro stack to transmit long packets ?
 

[mario_castaneda]

Hi Arthur,

If the you do not require certification then custom data requests can be sent using the native stack command: 

The APDU will need to be set to the size of the required size:

Also fragmentation will need to be enabled in the stack - setting greater than 1

Best Regards,

Mario