Challenges and Mitigation Strategies for Transition from IPv4 Network to Virtualized Next-Generation

The international arab journal of information technology

article

Zeeshan Ashraf¹  Adnan Sohail²  Sohaib Latif³  Muhammad Yousaf⁴ 

[1] Department of Computer Science and IT, The University of Chenab;Department of Computing and Technology, IQRA University;Department of Computer Science, Anhui University of Science and Technology;Department of Cyber Security, Riphah International University

关键词: QoE;    SDN;    NFV;    segment routing;    security;   

DOI  :  10.34028/iajit/20/1/9

学科分类：计算机科学（综合）

来源: Zarqa University

【 摘 要 】

The rapid proliferation of the Internet has exhausted Internet Protocol version 4 (IPv4) addresses offered byInternet Assigned Number Authority (IANA). The new version of the IP i.e. IPv6 was launched by Internet Engineering TaskForce (IETF) with new features, such as a simpler packet header, larger address space, new anycast addressing type,integrated security, efficient segment routing, and better Quality of Services (QoS). Virtualized network architectures such asNetwork Function Virtualization (NFV) and Software Defined Network (SDN) have been introduced. These new paradigmshave entirely changed the way of internetworking and provide a lot of benefits in multiple domains of applications that haveused SDN and NFV. ISPs are trying to move from existing IPv4 physical networks to virtualized next-generation IPv6 networksgradually. The transition from physical IPv4 to software-based IPv6 is very slow due to the usage of IPv4 addresses by billionsof devices around the globe. IPv4 and IPv6 protocols are different in format and behaviour. Therefore, direct communicationbetween IPv4 and IPv6 is not possible. Both protocols will co-exist for a long time during transition despite the incompatibilityissues. The core issues between IPv4 and IPv6 protocols are compatibility, interoperability, and security. The transitioncreates many challenges for ISPs during shifting the network toward a software-based IPv6 network. Packet traversing,routing scalability, the guarantee of performance, and security are the main challenges faced by ISPs. In this research, wefocused on a qualitative and comprehensive survey. We summarize the challenges during the transition process, recommendedappropriate solutions, and an in-depth analysis of their mitigations during moving towards the next-generation virtual IPv6network.

【 授权许可】

Unknown