Before you can understand the best practices of an OTV deployment, you need to understand the basic technology, terminology, and supported hardware. Following are two links that can help you: What Hardware Supports OTV Encapsulation?

Oct 28, 2010 · The following sections detail the OTV technology and introduce alternative design options for deploying OTV within, and between, data centers. OTV Terminology Before learning how OTV control and data planes work, you must understand OTV specific terminology.

OTV is an IP-based functionality that has been designed from the ground up to provide Layer 2 extension capabilities over any transport infrastructure: Layer 2 based, Layer 3 based, IP switched, label switched, and so on.

Feb 21, 2013 · OTV is a MAC-in-IP method that extends Layer 2 connectivity across a transport network infrastructure. OTV uses MAC address-based routing and IP-encapsulated forwarding across a transport network to provide support for applications that require Layer 2 adjacency, such as clusters and virtualization.

Feb 16, 2025 · OTV, or Overlay Transport Virtualization, is a new networking tech by Cisco. It makes connecting data centers easier. OTV is better than old tech like EoMPLS and VPLS. It lets Layer 2 networks work over Layer 3 networks. This makes networks bigger and more efficient.

Nov 12, 2011 · At a high level, the proposed design uses two OTV edge devices at the data center connecting across a dark fiber WAN to a single OTV edge device at DRS.

Aug 17, 2011 · OTV is designed to drop STP BPDUs across the Overlay interface, which means STP domains on each side of the L3 network are not merged. This is significant in that it minimizes fate sharing where a STP event in one domain ripples to other domains.

OTV provides a native built-in multihoming capability with automatic detection. Two or more devices can be leveraged in each data center to provide LAN extension functionality without running the risk of creating an end-to-end loop that would …

Overlay Transport Virtualization (OTV) is a network virtualization technology developed by Cisco, designed to extend Layer 2 connectivity across different data centers over a Layer 3 network. It's particularly useful for enterprises looking to connect multiple geographically dispersed data centers. Here are some key aspects of OTV: Key Features

Starting with NX-OS 5.2(1) release, OTV has the option to be deployed with unicast-only transport instead of multicast transport. The OTV control plane over a unicast-only transport works generally the same way as OTV with multicast mode.