Performance Analysis of Applying Load Balancing Strategies on Different SDN Environments

Abstract

Software-Defined Network (SDN) is considered a breakthrough to the global network. It plays an important role in performance improvement and network optimization. SDN is a new mechanism for managing and designing networks rather than the current traditional network system which does not afford more services and higher data rates; therefore, we analyze the effect of applying load balancing techniques and its importance in different SDN environments. In this paper, we propose a dynamic server load balancing technique in SDN architecture. Hence, we implement a server Connection-based load balancing technique and evaluate its performance with a static Round-robin and Random-based in both mininet emulation environment and Raspberry Pi OpenFlow-enabled switch using Ryu OpenFlow controller. The performance of the proposed algorithm is compared with Round-robin and random distribution of clients' requests. The results show that the proposed technique achieves more reliability and higher resource utilization than the Round-robin and Randombased load balancing strategies. In addition, the proposed scheme exhibits more scalability and low-cost characteristics.

Enhancing QoS of Telecom Networks through Server Load Management in Software-Defined Networking (SDN)

“…A Summary of the Comparative Analysis: With reference to Table 8, the QoS parameters verify that the maximum available bandwidth, throughput, and transfer rate of a user-defined network are improved by implementing the proposed technique in a real-time controlled SDN environment. The performance of the proposed algorithm (DASLM) is far superior to the method mentioned in the research articles [70,71].…”

“…To prove the effectiveness of the proposed (DASLM) algorithm, the comparative analysis is conducted with the method discussed in research articles [70,71]. Table 1 explains the fruitful effects of the proposed algorithm (DASLM) compared to the other research methods.…”

“…In Case A, the research method of article [70] (using the least server response method) is applied to the SDN controller for server load balancing, and QoS parameters are extracted. In Case B, the research method of article [71] (using the traditional Round-Robin method) is used for the SDN controller for server load balancing, and QoS parameters are extracted.…”

“…Case B (using the traditional Round-Robin method): The "15,000" HTTP requests were generated from the randomly available twentyseven hosts (user-defined network topology is shown in Figure 8) and forwarded to the POX controller. In this case, we have not defined the server load range of 1000 HTTP requests per second but instead applied the traditional Round-Robin approach in a userdefined network (as shown in Figure 8), as suggested in the research article [71]. The I-Perf utility is used to find the B am and T f .…”

Intelligent Load Balancing Techniques in Software Defined Networks: A Survey

“…We now consider sever based load balancing, in the case where a network has multiple servers. In [52], the authors propose a load balancing strategy for distributing clients requests across multiple servers. The strategy ensures that the next request is forwarded to the least-loaded server.…”