Escrow is a term used in many types of businesses, but to keep things simple, weâre going to limit this discussion to what escrow means in terms of real estate. Escrow can be three things, and if we take those Wikipedia items in reverse order, they might make a little more sense.
OTV is an encapsulation protocol that wraps L2 frames in IP packets in order to transport them between L2 domains. Typically this would be between remote datacenters, but it could also be within a datacenter if you needed an easy (expensive) way to extend a VLAN.
OV-1: High Level Operational Concept Graphic. The OV-1 describes a mission, class of mission, or scenario. It shows the main operational concepts and interesting or unique aspects of operations. It describes the interactions between the subject architecture and its environment, and between the architecture and external systems. The OV-1 is the pictorial representation of the written content of the AV-1 Overview and Summary Information.