3.2.5.5.2 Receiving an RPC PDU

When an implementation of this protocol receives an RPC PDU, it MUST pass it on to a higher-layer protocol without modifying the contents of the RPC PDU. This happens in an implementation-specific way. If it encounters a protocol error while processing the RPC PDU, it MUST handle the error as defined in section 3.2.5.5.13.<52>