5/11/2023 0 Comments Mirc chat pollIt's also sometimes useful for the server to be able to push data to its clients. Much of that is designed for the web, and so there are many unneeded features (a lot of headers used aren't necessarily needed for a basic IoT device). As applications use more cookies and user agents expand features, typical header sizes of 700-800 bytes is common Request headers today vary in size from ~200 bytes to over 2KB. On the other hand, HTTP requests tend to be rather weighty: For example, an MQTT PUBLISH packet can have an overhead of 4 bytes (as well as the topic string and payload) 1. In order to reduce resource usage (power, memory, etc.) a good protocol tends to transmit and receive as little data as possible. It's difficult to say something meaningful about a huge class of devices, but many IoT devices are small, power-constrained microcontrollers. What makes a protocol suitable for usage in the Internet of Things? Neither IRC nor HTTP are really optimised for usage as IoT protocols (though they could, in theory, be used).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |