Survey on Inter-Domain Traffic Engineering Research
As the main performance optimization technology of operational networks, Traffic Engineering (TE) has already widely deployed and used in autonomy systems controlled by single ISP. But how to apply TE in an inter-domain environment to improve the whole Internet's performance has not come to an entire solution and implement standards. In this paper, a comprehensive survey on inter-domain TE is given. Intra-domain TE solutions are introduced. Main difficulties in the inter-domain TE research area are summarized. Main possible solutions of inter-domain TE are detailed introduced, including traditional routing protocol (BGP) based solution and MPLS based solution. The advantages and disadvantages of both solutions are discussed. In the end, the future work in this area is discussed.