Isolation is one of the more relevant attributes associated to the idea of network slicing, introduced by 5G services. Through isolation it is expected that slices from different customers could gracefully coexist without interfering each other, in the sense that whatever misbehavior or unforeseen demand from one slice customer could not affect the communication service received by any other slice customer supported atop the same physical transport infrastructure. This paper surveys and compare different technical approaches that can be taken for providing distinct isolation levels in the transport network, as a major component of end-to-end network slices. Furthermore, a number of isolation feasibility indicators are defined and proposed. These indicators are based on the approaches referred before, as a mean of guiding orchestration decisions at the time of provisioning or reconfiguring the transport slices in the network.

翻译：隔离是5G服务引入的网络切片概念中更为相关的属性之一。通过隔离,预计不同客户的切片可以在不相互干扰的情况下优异地共存,也就是说,一个切片客户的错误行为或意外需求不会影响在同一有形运输基础设施上得到支持的任何其他切片客户得到的通信服务。本文调查并比较了在提供或重新配置网络中的运输切片时,可以采用的不同技术方法,作为端对端网络切片的主要组成部分,提供不同的隔离水平。此外,还界定和提出了若干孤立可行性指标。这些指标以前面提到的方法为基础,作为提供或重新配置网络中的运输切片时指导协调决策的手段。