att/tegu

Tegu is essentially 'zombie code' from the early SDN (Software Defined Networking) hype cycle. While it originated from AT&T, a major telecommunications player, the repository is nearly 11 years old with almost zero community engagement (17 stars) and no recent activity. It represents a legacy approach to network orchestration that predates the dominance of Kubernetes-native networking (CNI), service meshes like Istio, and modern cloud-provider VPC management tools. The defensibility is near zero because the specific SDN protocols and controllers it was designed for have largely been replaced by more integrated cloud-native solutions. From a competitive standpoint, any modern enterprise would look to VMware NSX, Cisco ACI, or cloud-native orchestration rather than a decade-old Ruby-based reservation manager. Its relevance is limited to historical reference for ISP-scale traffic engineering.