1. User data center (UDC): User data center is the core component for storing and managing user data. It contains the user's identity information, personal configuration, authority information and so on. UDC plays a key role in the core network, ensuring that users can access and use network services normally.

2. Business Data Center (BDC): The business data center is the core component for storing and managing data of specific business applications. It may include all kinds of business data, such as website content, video, audio, pictures, files and so on. The goal of BDC is to provide users with efficient data access and processing services.

3. Network Control Data Center (CDC): The network control data center is the control center of the core network, which is used to store and manage network configuration, topology information, routing strategy and security strategy. CDC is responsible for monitoring and adjusting the running state of the core network, and making dynamic scheduling and optimization when necessary.

As for how to deploy these three data centers, according to the network scale and demand, the specific deployment plan will be different. Generally speaking, the following points can be considered:

-High reliability: each data center should be deployed in a different geographical location to ensure that when one data center fails, other data centers can continue to provide services.

-High performance: The data center should have sufficient computing, storage and network resources to meet the requirements of the core network and ensure low-latency and high-throughput data transmission.

-Security: Data centers need to take appropriate security measures, including access control, data encryption, backup and disaster recovery, to protect the confidentiality and integrity of data.

-Monitoring and management: Every data center needs monitoring and management tools to monitor the running status, performance indicators and faults of the data center in real time, and make timely treatment and adjustment.

In addition, according to the specific business needs, we can also consider deploying multiple replicas or distributed architecture to improve the availability and fault tolerance of data. The final deployment plan needs to comprehensively consider network performance, reliability, security, cost and other factors, and make optimization and adjustment according to the actual situation.