A Model Based Approach to Dynamic Service Chaining
draft-chin-nfvrg-model-dynamic-service-chain-01
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
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|
|---|---|---|---|
| Author | Jonathan Chin | ||
| Last updated | 2016-08-06 (Latest revision 2016-02-03) | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
In the context of Network Function Virtualization (NFV), a service chain refers to a group of Virtual Network Functions (VNFs) deployed in a virtual infrastructure manager (VIM) environment, such as OpenStack, to apply a set of networking services to users' traffic passing through it. Depending on the service requirements, the service chain may consist of a single VNF or multiple VNFs deployed serially, or in parallel, and the Virtual Network Forwarding Graph (VNF-G) describes the topologies of how these VNFs are interconnected together via virtual links to provide different networking services. After a service chain is deployed, its user may require to modify the VNF-G from time to time, and on-demand, to meet changing service requirements. Therefore, operators may require to support a high degree of flexibility to orchestrate the provisioning and dynamic modifications of VNFs in service chains. This document presents a hierarchical model based approach to allow the NFV Orchestrator (NFV-O) and the VNF Manager (VNF-M) to support the dynamic provisioning and on-demand modifications of VNFs in service chains.
Authors
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)