SRv6 End-to-End DC Frontend and WAN

The SRv6 Network Programming architecture allows an application to control the end-to-end journey of traffic flows through different network domains in a unified and stateless manner, meaning intermediate network devices do not store per-flow information. This document covers its application to the integration of data center (DC) and wide area network (WAN) architectures using SRv6 with uSID (NEXT-CSID). This eliminates the complexities and inefficiencies associated with traditional fragmented network designs. The solution enhances scalability and enables flexible stateless service insertion by unifying the DC and WAN under a single SRv6 domain.