Connectivity Analysis of ipv6 Network Environment

The increasing popularity of IPv6 network environments poses many problems. One of them is about IPv4 and IPv6 compatibility. Although many enterprises and network structures use IPv6 networks, there are also V4 network protocols. Let's talk about the communication between the two.

(1) protecting existing investments (end users, ISP, ICP, and telecom operators) to the maximum extent)

When researching IPv4/v6 integrated networking solutions, we need to consider the existing investment of various network operators, this includes equipment investment, market investment, technical reserves, talent reserves, and many other aspects. Only good protection of existing networking technologies and their corresponding solutions can be highly practical ｡

(2) ensure intercommunication between IPv4 and IPv6 hosts

The IPv4 and IPv6 hosts in the network must be able to communicate with each other, including route accessibility and IP packet accessibility ｡

(3) ensure the normal application of existing IPv4 applications in the integrated networking environment

Applications in the existing IPv4 network already support a large number of users. The introduction in the IPv6 network environment cannot affect the existing services, this impact includes the impact of business performance, network reliability, and network security ｡

(4) avoid dependency between devices. Update of devices must be independent.

In the IPv4/IPv6 network environment, you must avoid the dependency and coupling between devices during device upgrade. You can select available networking technologies for each part of the network, the selection of these technologies cannot restrict the selection of networking technologies and device updates for other networks ｡

(5) The integrated networking process is easy for network managers and end users to understand and implement.

The simple and easy implementation of the integrated networking process is an important factor in the success of the networking. The complex networking process not only increases the probability of network failures, but also affects the user's follow-up speed ｡

(6) improve networking flexibility, support gradual network upgrades, and Users have the right to choose when to transition and how to transition

(7) the network service quality should not be significantly reduced after the integrated networking

Because the performance of the routers in the IPv6 network environment is lower than that of the IPv4 routers at the same level, the performance of the dual-stack routers is not very high. Therefore, after the IPv4/v6 integrated networking, the overall performance of the network may decline, but this decline will not significantly affect the service quality of existing services ｡

(8) after the integrated networking, the network reliability and stability cannot be weakened.

(9) How to give full play to the technical advantages of IPv6.

The IPv6 technology is designed to solve the problem of insufficient IP address space. However, it also adds some other functions, for example, network security support capabilities. In the research of integrated networking technology, we should consider how to make full use of these technical advantages ｡

(10) when designing a comprehensive networking solution, on the one hand, we must consider the long-term coexistence of IPv4 and v6, and on the other hand, the possibility that all networks will adopt the IPv6 network environment in the future, during technical research, you must note that the selected technology can support smooth network transition, it will not form a new obstacle for future network transition. Such a working mode is full duplex, which is one of the reasons why vswitches have better performance than hubs ｡