Abstract
With the development of cloud computing and virtualization, a physical router can be multiplexed as a large number of virtual routers. TCP-based interactive applications have an incentive to improve their performance by padding “junk packets” into the network among real communication packets. This padding misbehavior will upgrade short TCP flows from “mice” to “elephants” and consequently lead to network congestion and breakdown. This paper presents a detailed solution and analysis for describing the normal behavior and padding misbehavior of virtual routers. In particular, a system model for analyzing behavior of virtual routers is based on evolutionary game model, and, through analyzing the stability of the equilibrium points, the stable point is the solution to the problem. The clear evolutionary path of network applications with the normal behavior and padding misbehavior is analyzed by the corresponding graph. Then this paper gives the behavior control suggestions to effectively restrain the padding misbehavior and maintain stable high-throughputs of the router. The simulation results demonstrate that our solution can effectively restrain the padding misbehavior and maintain stable high-throughputs of the router simultaneously compared with the classical queue management.
Highlights
IntroductionCloud computing has been significantly developed, which provides a large number of cloud services
During the past decade, cloud computing has been significantly developed, which provides a large number of cloud services
(2) This paper analyses the stability of the equilibrium points which depends on the value of ΔJ ⋅ trJ, and the stable point is the solution to the problem
Summary
Cloud computing has been significantly developed, which provides a large number of cloud services. In order to obtain enough bandwidth resources, TCP-based interactive applications, such as gaming, telnet, or persistent HTTP, have an incentive to improve their performance They send “junk packets” into the network among real communication packets, which is called padding misbehavior. The studies of the above problems focus on the queue management schemes which are generally based on two packet processing types, Drop-tail and RED [7], for instance, ARED [8], BLUE [9], PI [10], and PAQM [11] algorithms Both network-based and endpoint-based mechanisms that check for TCP-friendliness are incapable of detecting any violation, because all flows are TCP friendly. Affected by internal and external factors, participants’ strategies and game’s results will be presented in different states [13] These features enable the game theory to well model the interaction of short TCP flows and obtain the solution of the padding misbehavior of virtual routers.
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