Overlay Virtual Networking

This section contains important information you should read before starting the webinar, and describes the typical IaaS networking requirements:

• Multiple tenants sharing the same infrastructure;
• Multiple virtual networks (or routing domains) per tenant;
• Elastic and scalable solution architecture.

Traditionally we used VLANs to create multiple tenant networks... and hit numerous scalability limitations, resulting in most virtualization vendors embracing overlay virtual networks.

This section describes typical overlay virtual networking functionality, various encapsulation technologies, and interfaces between overlay networks and physical world.

Mastered the fundamentals? Let’s do a deep dive into how layer-2 forwarding, gateways, and distributed layer-3 forwarding work in overlay virtual networks.

This section describes several obsolete overlay virtual networking implementations; you might find it useful when researching the history of networking.