6.5 Usage of Block-wise Transfers

Using Block Options, large oneM2M resource representations can be fragmented and reassembled by CoAP independently of the lower layers as well as the above application. The CoAP Block1 Option shall be used to define the size of the blocks used for oneM2M request primitives and the CoAP Block2 Option shall be used to define the size of the blocks used for oneM2M response responses. Refer to IETF RFC 7959 [3] for further details.