Compatibility networking should focus on developing IPv6 services

The development of IPv6 networks is not as good as we have imagined. One of the reasons is the lack of IPv6 services. Faced with the powerful basic service services of IPv4, many users have difficulty in providing services. Although IPv6 provides a safer and more humane network concept, the lack of business resources has discouraged many users.

1) supports intercommunication between IPv4 and IPv6 services on the premise that IPv4 and IPv6 services do not affect each other

In the early stage of the integrated networking, IPv4 and IPv6 network elements must be interconnected, and IPv4 and IPv6 services can be supported separately. These services can be operated independently and cannot communicate with each other, in the later stage of the integrated networking, the IPv4 service and IPv6 service must be interconnected at the business layer.

2) We should focus on the gradual evolution strategies from the edge to the backbone, while focusing on the strategies from the backbone to the edge)

Network Evolution Strategies from the edge to the backbone or from the backbone to the edge) has been a matter of debate in the research of IPv4/v6 integrated networking technology. It is generally believed that the introduction of IPv6 technology in the network is mainly to solve the problem of insufficient IP address space, while the edge of the network consumes a lot of IP addresses, because the number of network terminals, access devices, and collection devices is much more than the number of network elements in the Metro core network or backbone network, IPv6 technology can effectively solve the problem of insufficient IP address space at the edge of the network. On the other hand, the design principles of backbone networks and Metro core networks are simple and efficient. In actual situations, the routing forwarding performance of IPv6 routers is lower than that of IPv4 routers, therefore, the metro core network and backbone network should adopt the IPv4 protocol, and there is no urgent need to upgrade the IPv6 protocol for this part of the network. Ensuring the long-term relative stability of the core network and backbone network is conducive to the continuous and stable development of the network. Therefore, the gradual evolution strategy from the edge to the backbone network has been recognized by most researchers.

3) after the integrated networking, the network management function should be enhanced compared with the original network.

After IP technology is introduced in telecom networks, the network management and operation modes cannot be carried out according to Internet-related models, which has been supported by more and more researchers. The technical and management problems of the original IPv4 network have been gradually exposed. In the research of IPv4/v6 integrated networking technology, both aspects should be considered at the same time, improves network manageability and maintainability.

4) The impact of integrated networking on user authentication and billing methods should be considered

The billing and authentication of IP networks has always been a hot topic. This issue is particularly prominent in telecom networks. At present, there are some solutions to the billing and authentication problems in IPv4 networks, in addition, these methods have been applied to a certain extent in the actual network, and some achievements have been made. However, the introduction of technologies that provide IPv6 Services makes the problem more complicated, and sometimes leads to repeated billing and authentication.

5) The efficiency of IPv4 address resources should be considered

During IPv4/v6 integrated networking, different integrated networking technologies have different requirements for IPv4 addresses. Some networking technologies still require a large number of IPv4 addresses, therefore, the demand for IPv4 addresses is also a concern in the research of integrated networking technology.

6) benefits to end users such as IPv6 services and points of interest should be taken into account)

Introducing IPv6 in an IPv4 network can solve the problem of insufficient IP address space of the carrier. However, what are the benefits of network upgrades for end users, or the reasons for end users to support such upgrades. After the network is upgraded, it can provide better services or add new business types and form new business points of interest, which is an important factor to stimulate end users to actively follow up. After the network upgrade, only the increase in users, the increase in user satisfaction with the network, and the increase in business income can truly promote the network upgrade and transformation process of operators.

7) telecom operators should have clear network transition plans

Network upgrade is an important issue involving all aspects of the network. Therefore, operators should have a long-term plan and a specific implementation plan, such planning and planning should be consistent with the enterprise's technical route and network development direction, to avoid the blindness of the network upgrade transition and the resulting chaos.

8) the improvement of NAT and address planning for some problems existing in the existing IPv4 networks should be taken into account in the overall networking process)

In the research of IPv4/v6 integrated networking technology, we should fully analyze and study the problems existing in the existing IPv4 networks, in order to solve or avoid these problems in the integrated networking solution.

9) The technology selection between different parts of the network should be independent. For example, different technologies can be selected for the metro core network, access network, and resident network.