Network construction is a huge and complicated system engineering. When deploying the network, the first thing to consider is the business implementation scheme, while the network visualization scheme is put aside for post-processing or even unnecessary. When there is a need for visualization, optical distribution equipment will be installed, which leads to the need to transform the existing network every time network visualization equipment is added, which is a huge challenge for business and operation and maintenance personnel.
Extended data
Disadvantages of DPI
1. The current form of DPI devices can't meet the virtualization requirements put forward by new technologies such as "big data" and "cloud computing" and can't adapt to the trend of network cloudization.
2. Different functional departments, such as network management, application management, security management and business platform, have different functional requirements, and each has planned its own network visualization scheme. On the same link, it may be deployed many times and repeated construction.
3. The application analysis only needs to extract specific traffic, but the optical splitter does not distinguish, and all traffic is copied to the DPI equipment, which increases the pressure on the DPI equipment and is inefficient. Although the traffic is selectively filtered after the deployment of the front-end processor, the filtering rules of the front-end processor are static and cannot be automatically adjusted. A front-end processor can only serve a specific business, resulting in a waste of resources.
4. At the initial stage of network construction, we didn't pay enough attention to network visualization and application visualization. After the requirement, we patch the network nodes to solve the architecture problem. This solution has many problems such as universality and compatibility, and its implementation efficiency is low.