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IPv6

IPv6 builds next-generation, converged networks

Introduction to IPv6 Technology

H3C® has developed an extensive roadmap and migration strategy to deliver IPv6 functionality for building converged networks. This is especially important in countries where governments are beginning to mandate IPv6 for universities and other enterprises preparing IPv6 installations and in technologically developing countries where IP address depletion is reaching critical mass. As a result, the next wave of Internet Protocol—designated IP Next Generation (IPng), or more precisely IPv6—is gaining increasing acceptance.

In addition to a very large address space, IPv6 has many desirable benefits including:
  • Eliminating the need for broadcasts
  • A simplified header for faster ASIC processing
  • Automatic address configuration
  • Extended support for quality of service (QoS)
  • Explicit security support
  • Explicit mobility support
  • Eliminating packet fragmentation

The Transition to IPv6

While IPv4 is currently the dominant Internet Protocol (IP) for packet-switched networks, the transition to the more robust and flexible IPv6 requires that both technologies co-exist, at least for the foreseeable future. As a result, the Internet Engineering Task Force (IETF), the governing body concerned with the future of Internet architecture, has developed a series of prescribed guidelines that ensure continued interoperability between both technologies, including:
  • Dual-stack technology — Uses an IPv4-protocol stack when communicating with an IPv4 node and an IPv6-protocol stack when communicating with an IPv6 node;
  • Tunneling technology — Enables, through various manual and automatic tunnel technologies, two IPv6 sites to communicate with each other over an IPv4 network;
  • NAT-PT technology — Enables communication between IPv4 and IPv6 networks by providing translation services between IPv4 and IPv6 addresses.

H3C IPv6 technology provides high-performance, feature-rich implementation of IPv6 that addresses typical stages of IPv6 deployment. Our commitment is backed by an extensive IPv6 roadmap, including platforms with a variety of capabilities at differing price levels.

IPv6 technology, which includes support for media rate IPv6 over 10-Gigabit and Gigabit ports, is available in H3C routers such as the SR6600, MSR 50, MSR 30 and MSR 20 series, and in H3C premium enterprise switches, including the S12500, S9500, S7500E, S5800, S5500-EI, S5500-SI, S3600-EI* and S3100-EI* series. They offer the following features:

*Provides support for IPv6 management only

  • Support of standard RFCs — Including IPv6 addressing architecture, Internet Control Message Protocol (ICMP)v6, Neighbor Discovery Protocol and Stateless Address Auto-configuration;
  • IPv6 Routing — Static routes, IPv6 Routing Information Protocol (RIPng), Open Shortest Path First (OSPF)v3, VRRPv6, Border Gateway Protocol (BGP)4+, Intermediate System to Intermediate System (IS-IS)v6, PIMv6 and SSMv6;
  • Dual Stack — Implemented in the switches, enables transmission of either IPv4 or IPv6 communications between switches or routers;
  • Tunneling — Manually configures tunnels using 6to4, ISATAP and GRE, enabling transmission of IPv6 packets between dual stack nodes in IPv4 networks;
  • Management — Simple Network Management Protocol (SNMP)v3.