ETSI TS 103 443-5介绍了IPv6过渡应用的工程和操作要求 ETSI TS 101 569-1[1]（IPv6过渡要求）定义的技术464XPAT在 跨其网络域的端到端集成宽带电缆网络。本文档是多部分系列的第5部分，介绍了IPv6过渡的操作方面 技术可以跨越有线网络领域。只有那些必须经过设计才能运行IPv6过渡技术的网络元素是 提出了。未更改的网络元素的描述和接口细节已由 相关设备电缆标准，因此本文件不包含该信息。在评估464XPAT的实施和运行时，其实施的一致性是相关的 电缆网络的要求，以确保正确设计实施，以符合 基本标准ETSI TS 101 569-1[1]的要求。这些一致性测试未在本规范中规定 按照ETSI TS 103 242第1部分[11]至第3部分[13]的规定编制文件。IPv6过渡技术464XPAT的运营方面在跨网络进行端到端设计时予以考虑 有线网络域；CPE家庭网络域接入网络域核心网络域数据中心域DMZ服务域传输和对等域管理和监控域安全域本文件规定了定义的IPv6转换技术时需要考虑的要求 464XPAT是跨有线网络域设计的。

ETSI TS 103 443-5 presents the engineering and operational requirements for the application of the IPv6 transition technology 464XPAT as defined by ETSI TS 101 569-1 [1] (IPv6 Transition Requirements) implemented within an integrated broadband cable network end to end across its network domains.The present document is part 5 of a multi-part series and presents the operational aspects of the IPv6 transition technology 464XPAT across the cable network domains.Only those elements of the network that have to be engineered to operate the IPv6 transition technology 464XPAT are presented. Descriptions and interface details of network elements that do not change are already addressed by the relevant equipment cable standards and therefore this information is not included in the present document.The conformity of the 464XPAT implementation is relevant when assessing its implementation and operational requirements across the cable network to ensure the implementation is correctly engineered to conform to the requirements of the base standard ETSI TS 101 569-1 [1]. These conformance tests are not specified in the present document as they are already specified by ETSI TS 103 242 part 1 [11] to 3 [13].The operational aspects for the IPv6 transition technology 464XPAT are considered when engineered end to end across the cable network domains;CPE Home Networking DomainAccess Network DomainCore Network DomainData Centre DomainDMZ Service DomainTransit and Peering DomainManagement and Monitoring DomainSecurity DomainThe present document specifies the requirements to be considered when the defined IPv6 transition technology 464XPAT is engineered across the cable network domains.