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.
EMV is an abbreviation for Europay, Mastercard and Visa, the three organizations that developed the initial specifications. EMV is an open-standard set of specifications for smart card payments and acceptance devices.