Reactive configuration updating for Intent-Based Networking
Reactive configuration updating for Intent-Based Networking
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DOI：
10.1109/icoin.2017.7899484
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Y. Tsuzaki;Y. Okabe
中科院分区：
文献类型：
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作者：
Y. Tsuzaki;Y. Okabe
由于互联网中的网络配置变得越来越复杂，管理网络已成为一项繁重的任务。作为解决这个问题的尝试，基于意图的网络（IBN）的概念已经被提出。虽然传统网络中的网络管理员的意图被用于以存储在每个设备上的配置的具体描述来表达，但是IBN中的管理员的意图被抽象地和规定性地表达为他想要做什么。基于意图的网络建模（NEMO）语言的概念已经在IETF IB-Nemo BoF中进行了讨论，并在NEMO项目中开发了一个草案规范和实现。NEMO是一种基于事务的北向API，目前仅支持简单主动策略的描述，例如在指定时间更改网络路径。我们提出了一种机制，使管理员能够更新网络配置自动根据外部环境的变化，基于反应式配置，表达了管理员的意图。在本文中，我们将描述自动网络管理的方法，已经研究，然后描述我们提出的过程中的一个扩展的NEMO语言来更新配置反应。还讨论了执行问题。
Since network configurations in the Internet are getting complicated, managing networks has become a heavy task. As an attempt to solve this problem, the concept of Intent-Based Networking (IBN) has been proposed. While intent of a network administrator in conventional networks is used to be expressed in concrete description of configurations stored on devices each, intent of an administrator in IBN is expressed abstractly and prescriptively as what he wants to do. The concept of Intent-Based Network Modeling (NEMO) language has been discussed in IETF IB-Nemo BoF, and a draft specification and implementation of it is developed in the NEMO project. NEMO, a transaction based Northbound API, currently supports description of simple proactive policy only such as change of network path at a specified time. We propose a mechanism that enables an administrator to update network configuration automatically in accordance with the change of external environment, based on reactive configurations which express the intent of the administrator. In this paper, we will describe automatic network management methods that have been studied, and then describe our proposed procedure to update configuration reactively in an extended NEMO language. Issues on implementation are also discussed.