"Cisco has taken a leading role in the definition and implementation of the IPv6 architecture within the Internet Engineering Task Force (IETF) and continues to lead the industry in IPv6 development and standardization. With the system release of Cisco Unified Communications Manager (Unified CM) 7.1, Cisco Systems has introduced IPv6 functionality to a range of Unified Communications products that enable customers to implement IPv6-capable Unified Communications networks today.
This document describes Cisco's implementation of IPv6 for its Unified Communications products, and it discusses how to design Unified Communications networks to use IPv6 in a dual-stack (IPv4 and IPv6) environment. This document does not discuss the implementation of IPv6 in the campus and WAN in detail, but these topics are discussed in other Cisco documents (which are referenced in this document). For those who are unfamiliar with IPv6, this document also provides a brief introduction to IPv6 architecture and functionality. Recommendations for further reading on IPv6 are also made in this document.
The primary focus of this document is on new IPv6 functionality for Cisco Unified Communications networks. The co-existence of IPv4 and IPv6 devices is considered throughout this document."
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