Abstract
As a global community, the Internet is comprised of thousands of administrative entities that operate and interact with each other. Transferring data among these entities is possible due to the process of routing, which is challenging due to the lack of centrality. Consequently, the Border Gateway Protocol (BGP) can play a vital role in the routing process as a central hub for disseminating routing information to the various autonomous systems. Yet, the BGP poses security vulnerability due to the difficulty of validation and authentication. Recent studies argue that it would be beneficial to apply the Software-Defined Networking (SDN) approach to address some of the BGP problems. The SDN can help handle BGP-based networks at a low cost and with minimal complexity. However, there are still many scientific and operational problems in this field of study. The main objective of this paper is to identify the challenges that the BGP facing with respect to the adoption of the SDN. The findings revealed that most researchers focused on improving convergence time, while other essential features such as scalability and privacy were overlooked.
Highlights
IntroductionInformation can travel on a single path through a network determined by a routine procedure
The current distributed environment does not allow for sufficient customization of routing protocol usage
Domains are associated with the use of Border Gateway Protocol (BGP) in multi-domain Software-Defined Networking (SDN) to share routing and route information between domains or different ASes
Summary
Information can travel on a single path through a network determined by a routine procedure. Intra-AS routing is based on Interior Gateway Protocols (IGPs), such as Intermediate System to Intermediate System routing (IS-IS). This topology information is distributed within the AS, and all routers will receive it. The Border Gateway Protocol (BGP) routing protocol enables routers to share routing information on a regular basis. BGP may transmit information and data among various host gateways via the Internet or ASes. BGP may transmit information and data among various host gateways via the Internet or ASes It is a Path Vector Protocol (PVP) that provides routes to multiple hosts, networks, and gateway routers to determine routing [6]
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