Migrate to IPv6 on 6PE with MPLS-TE: Questions on Feasibility and Reluctance in Deployment?

Due to the exhaustion of IPv4 addresses, the transition to IPv6 has already begun using various transition mechanisms. In this paper comparison between two transition mechanism 6PE and 6to4 tunneling over MPLS (Multiprotocol Label Switching) based network has been performed. The experimental platform used is based on GNS3/Dynagen using emulated routers on which multiple TCP and UDP flows were generated between separated IPv6 network traversing through IPv4 based core. Traffic were generated using both transition mechanism and are compared to native IPv4 based MPLS network. Performance metric used are end-to-end delay, jitter and throughput, these parameters are also analyzed statistically using ANOVA, F-Test and T-Test to support a conclusion. Further, MPLS Traffic-Engineering (TE) using RSVP-TE signalling is applied, describing the implementation and performance test and analysis of TE tunnels on 6PE for IPv6 traffic. The same test-bed is used to implement and observe MPLS-TE behavior and throughput of 6PE based MPLS-TE to that of native IPv4 based MPLS-TE. Concluding, throughput of 6PE and 6to4 is around 99% and 96%, respectively, as compared to that of native IPv4.