The table below contains a quick summary of the IoT protocols:
| Protocol | CoAP | XMPP | RESTful HTTP | MQTT | AMQP |
|---|---|---|---|---|---|
| Transport | UDP | TCP | TCP | TCP | TCP |
| Messaging | Request/Response | Publish/Subscribe Request/Response | Request/Response | Publish/Subscribe Request/Response | Topic based Publish/Subscribe |
| 2G, 3G, 4G Suitability (1000s nodes) | Excellent | Excellent | Excellent | Excellent | Excellent |
| LLN Suitability (1000s nodes) | Excellent | Fair | Fair | Fair | Excellent |
| Compute Resources | 10Ks RAM/Flash | 10Ks RAM/Flash | 10Ks RAM/Flash | 10Ks RAM/Flash | 10Ks RAM/Flash |
| Success Stories | Utility Field Area Networks | Remote management of consumer white goods | Smart Energy Profile 2 (premise energy management, home services) | Extending enterprise messaging into IoT applications | Extending enterprise messaging into IoT applications |
| designed for resource-constrained devices and low bandwidth, high latency networks | interoperability reliable queuing, flexible routing, transactions, and security |
Discover more from Cloud Distilled ~ Nithin Mohan
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