Cisco's Viptela software defined wide area network (SD-WAN) solution incorporates segment routing. It's an unique attribute to their platform and one of the many reasons organizations going through M&A leverage Cisco's Viptela. In the past, you would have to have the telecommunications provider at a cost provide segments via VRFs. Cisco's Viptela provides this capability natively in the software. You can have 64 different segments per router.

If you are segmenting at the core DC via ACI or NSX, you can also provide the ability to carry those segments over the WAN.

It's very powerful, and can benefit the business on multiple levels.