The networking community continues to create new technologies and update existing ones to improve the quality, reliability, and "tailorability" of data networks. However, whenever Internet service providers attempt to productize "tailorability" and sell it explicitly to end customers as a premium service over best effort connectivity, they either fail to overcome net neutrality concerns or struggle to gain market traction. For this article, we focus only on those networking protocols, technologies, or standards whose goal is to offer tailored connectivity to paying customers on a public network and refer to them as differentiated QoS (D-QoS) standards. This article makes two contributions. First, it explores the techno-economic market trajectory of D-QoS standards to understand the factors that determine success. In doing this, we acknowledge that while there is wide variation and dissimilarity in their underlying technical properties, the expectation and goal for all D-QoS standards is that they will be used to provide guaranteed connection for which customers could be prepared to pay. As such, we consider Layer 2/3 technologies (e.g., ATM, frame relay, MPLS), signaling technologies (e.g., RSVP), data packet markers (e.g., IP ToS, DiffServ, WME, QCI), and end-to-end separation solutions (e.g., leased lines, network slicing) as a single cohort and analyze them together. Second, by exploring the parallels with 5G network slicing, we argue that despite its inherent technical differences with other D-QoS standards, the commercial performance of network slicing may end up resembling that of previous D-QoS standards. Consequently, we seek to learn lessons from previous D-QoS attempts and suggest that enterprise-focused 5G slices, running within a single service provider's domain and with binding service level agreements, will have the highest chance of success in the short/medium term.
翻译:网络社区继续创造新技术并更新现有技术,以提高数据网络的质量、可靠性和“可达性”质量、可靠性和“可达性”。然而,每当互联网服务提供商试图将“可达性”化为“可达性”并明确地将其出售给客户,作为最佳努力连通的溢价服务,他们要么无法克服纯中性关切,要么难以获得市场牵引。对于这篇文章,我们只关注那些网络协议、技术或标准,其目标是为公共网络的客户提供量身定制的连通性,并将它们称为有区别的QOS(D-QOS)标准。这篇文章做出了两项贡献。首先,它探索了D-Q标准的技术-经济的内在市场轨迹,以了解决定成功的因素。在这样做时,我们承认,尽管其基本技术特性存在巨大的差异和差异,但所有D-Q标准的期望和目标是,它们将被用于提供客户可以支付费用的保障连接。 因此,我们认为,5/3 技术(例如,ATM,框架中继、MPLS), 信号技术(e.G, RS-seal Seral Serveal Seral Seral Seral Serv sal Serveal) erv Serv sal Serveal sal sal sal sal elveal) laveal sq) laveald.