Implementation and evaluation of the traffic control function in Pub/Sub type communication

Abstract

The deployment of Internet of Things (IoT) services in a variety of fields has recently resulted in a rapid rise in the number of connected devices and the traffic volume generated by those devices across networks. In these cases, the problems of the Internet become remarkable. To address these issues, Pub/Sub type communication appears to be a viable option. This communication provides simplified communication sequences and is independent of IP flows. However, it may allow a DDoS attack because the Domain Name System (DNS) is not required and incoming traffic can be admitted without protection. This study proposes the traffic limitation function by Token Bucket Filter on Pub/Sub type communication. This study intends to utilize MQ Telemetry Transport (MQTT) as one of the most popular Pub/Sub type communication. It also reports the development of the prototype system, including the proposal and evaluation using this prototype system.