Currently, the default transmit and receive buffer size is 59, which is 2 * minimum PDU size + 1 to allow effective usage of pdu_ring_buffer<>. If the minimum PDU size is larger due to overhead between header and body (as for the nrf51/52), fragmentation can cause an exhausting of the buffer (when both pointers point in the middle of the buffer).
Currently, the default transmit and receive buffer size is 59, which is 2 * minimum PDU size + 1 to allow effective usage of pdu_ring_buffer<>. If the minimum PDU size is larger due to overhead between header and body (as for the nrf51/52), fragmentation can cause an exhausting of the buffer (when both pointers point in the middle of the buffer).