Problem Statement: Overlays for Network Virtualization
draft-narten-nvo3-overlay-problem-statement-04

Abstract

This document describes issues associated with providing multi- tenancy in large data center networks that require an overlay-based network virtualization approach to addressing them. A key multi- tenancy requirement is traffic isolation, so that a tenant's traffic is not visible to any other tenant. This isolation can be achieved by assigning one or more virtual networks to each tenant such that traffic within a virtual network is isolated from traffic in other virtual networks. The primary functionality required is provisioning virtual networks, associating a virtual machine's virtual network interface(s) with the appropriate virtual network, and maintaining that association as the virtual machine is activated, migrated and/or deactivated. Use of an overlay-based approach enables scalable deployment on large network infrastructures.

Authors

Thomas Narten (narten@us.ibm.com)
Dinesh Dutt (ddutt.ietf@hobbesdutt.com)
Luyuan Fang (lufang@cisco.com)
Eric Gray (Eric.Gray@Ericsson.com)
Lawrence Kreeger (kreeger@cisco.com)
Maria Napierala (mnapierala@att.com)
Murari Sridharan (muraris@microsoft.com)

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