The Underlay Abstraction in the Spontaneous Virtual Networks (SpoVNet) Architecture

Roland Bless, Christian Hübsch, S. Mies, O. P. Waldhorst
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引用次数: 40

Abstract

Overlay-based services are a popular approach for providing functions like multicast, quality of service or security in the Internet without requiring infrastructure support. This paper presents the Underlay Abstraction Layer in the Spontaneous Virtual Networks (SpoVNet) architecture that enables easy and flexible creation of such services. Also building on an overlay approach, the Underlay Abstraction provides generic functionality to cope with mobility, multi-homing, and heterogeneity. It manages node mobility by separating node identifiers from network locators and it provides persistent connections by transparently switching locators. Multi-homing is supported by choosing the most appropriate pair of network locators for each connection. In order to cope with network and protocol heterogeneity, it uses dedicated overlay nodes, e.g., for relaying between IPv4 and IPv6 hosts. Since the functionality provided by the Underlay Abstraction can be used by several overlay-based services in parallel, redundant functionality is removed from services and applications.
自发虚拟网络(SpoVNet)体系结构中的底层抽象
基于覆盖的服务是一种流行的方法,可以在不需要基础设施支持的情况下提供Internet中的多播、服务质量或安全性等功能。本文介绍了自发虚拟网络(SpoVNet)体系结构中的底层抽象层,该层可以轻松灵活地创建此类服务。同样建立在覆盖方法之上,底层抽象提供了通用功能来处理移动性、多归巢和异构性。它通过将节点标识符与网络定位器分离来管理节点移动性,并通过透明地切换定位器来提供持久连接。通过为每个连接选择最合适的一对网络定位器来支持多归巢。为了应对网络和协议的异构性,它使用专用的覆盖节点,例如,在IPv4和IPv6主机之间中继。由于底层抽象提供的功能可以由多个基于覆盖的服务并行使用,因此从服务和应用程序中删除了冗余功能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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