5. Conclusion

SR-MPLS is an evolution of MPLS that adds a great deal to MPLS networks using LDP. SR-MPLS adds the ability to send a packet along any desired path. The main applications are improved network response in the event of failure, traffic engineering for specific (tactical) needs, and improved network operation. These advantages have led to the rapid standardization of SR-MPLS, its implementation by all major router manufacturers and a wide range of deployments.

SRv6 was developed in a second phase, in particular due to the necessary evolution of the transfer scheme. This change in the forwarding scheme requires more standardization work, an evolution of the router forwarding scheme, and increased hardware requirements. The foundations of SRv6 have now been laid, but work on its applications has only just begun. SRv6 has the potential to replace several technologies,...