International Journal of Computer Science & Engineering Technology (IJCSET)
Cloud computing is becoming more and more popular in IT industry nowadays. Those famous companies including Amazon, IBM, HP, Google and Microsoft are creating and deploying Clouds in various locations around the world. Technically, Cloud Computing refers to both the applications delivered as services over the Internet. In the cloud, there might be tens of thousands or even more users accessing resource simultaneously, which give an extremely high pressure on the cloud. An effective traffic control mechanism which can both control the network traffic and make full use of network bandwidth is Hierarchical Token Buckets (HTB). It is used to control the outbound bandwidth on a given link. HTB ensures that the traffic rate for each class is at least the amount assigned to it.