Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision |
| en:iot-open:communications_and_communicating_sut:high_level_communication [2019/05/27 09:43] – pczekalski | en:iot-open:communications_and_communicating_sut:high_level_communication [2020/07/20 09:00] (current) – external edit 127.0.0.1 |
|---|
| | ===== ===== |
| | <box #5374d5></box> |
| | <box #5374d5></box> |
| ===== Host Layer Protocols ===== | ===== Host Layer Protocols ===== |
| | <box #5374d5></box> |
| | <box #5374d5></box> |
| | |
| The host layers protocols include session (SES), presentation (PRES) and application (APP) level, particularly APP (application) layer in the regular Internet communication is dominated by the HTTP protocol and XML-related derivatives, e.g. SoAP. Also, FTP protocol for file transfer is ubiquitous; it exists since the beginnings of the Internet. Most of them are somehow related to the text. They're referenced as "WEB" protocols. Although these protocols are frequently used by advanced and more powerful IoT devices, this is problematic to be implemented in the constrained IoT devices world. Event simplest HTTP header occupies at least 24 + 8 + 8 + 31 bytes without any payload! There is also a problem to cross firewall boundaries when communication between subnetworks of the IoT devices is expected to occur. | The host layers protocols include session (SES), presentation (PRES) and application (APP) level, particularly APP (application) layer in the regular Internet communication is dominated by the HTTP protocol and XML-related derivatives, e.g. SoAP. Also, FTP protocol for file transfer is ubiquitous; it exists since the beginnings of the Internet. Most of them are somehow related to the text. They're referenced as "WEB" protocols. Although these protocols are frequently used by advanced and more powerful IoT devices, this is problematic to be implemented in the constrained IoT devices world. Event simplest HTTP header occupies at least 24 + 8 + 8 + 31 bytes without any payload! There is also a problem to cross firewall boundaries when communication between subnetworks of the IoT devices is expected to occur. |
| Some IoT designed protocols are reviewed below. | Some IoT designed protocols are reviewed below. |
