Maia Edge Retired Hewlett Packard Enterprise Maia Edge Hewlett Packard Enterprise This document describes Hewlett Packard Enterprise's Secure Vector Routing (SVR), an overlay inter-networking protocol that operates at the session layer. SVR conveys end-to-end network requirements that cannot be expressed in network-layer headers by carrying application- layer cookies in the first packet of a session, eliminating the need for tunnel encapsulation and for non-overlapping underlay address spaces. SVR traverses middleboxes and address translators between private networks, the IPv4 public Internet, and the IPv6 public Internet, and supports SD-WAN, multi-cloud, multicast, and dual-stack use cases while improving security at the routing plane.