Summary

As enterprise services and network resources increasingly span multiple domains, coordinated inter-domain software-defined wide area networking (SD-WAN) service becomes essential for end-to-end consistent service delivery. This draft Supplement specifies the signalling architecture, procedures and requirements for coordination between SD-WAN controllers across domains, including the interactions of customer demand negotiation, configuration parameters negotiation, and service and network monitoring results notification. This Supplement contributes to automated provisioning and end-to-end performance assurance for inter-domain SD-WAN services.