A SDN Based Scalable Layer 2 Network for Next Generation Internet Testbed
Yanwei Xu, Xiaoyuan Lü, Tairan Zhang · Advances in computer science research · 2015
The demands for the next generation internet testbeds are becoming more and more intense recently.However, there are three problems need to solve, i.e., the ever-increasing number of actual or virtual machines demands, effectively manage these different machines and maintain the effectiveness.A scalable layer 2 network that across the whole internet is a very important technology to solve them.This paper proposes a new software defined network (SDN) based scalable layer 2 network framework and its significant characteristic is to build a scalable layer 2 network that across the whole internet by using SDN's technologies.Our framework has high performances because: 1) The operation of encapsulating and unpacking packets is not necessary; 2) Routing paths can be pre-computed; 3) Traffic engineering to be implemented.And then the proposed framework has good scalability because its addressing resolution can be done either by a centralized query or by transmitting a broadcast packet in the internet.And the two ways can be swapped flexibly by the load balancing.