Product Introduction
Introduction to Network Load Balancer
NLB (Network Load Balancer) is a new generation of four-layer load balancer specifically designed for TCP/UDP protocols, supporting ultra-high performance and rich features. Advanced features, such as full port access and cross-domain mounting, are supported.
Product Components
- NLB Instance: It accepts traffic from the client and forwards requests to one or more backend servers.
- Listener: For each listener, you need to configure the protocol and port to listen for requests from clients, and set how to distribute the traffic, etc. Different listeners are used to handle different business traffic, and forward requests to a backend service node according to the forwarding strategy you define.
- Service Node: The backend server that actually processes the client traffic. The service node can be a cloud server instance, an elastic network interface, or an IP address.
Product Advantages
- Simple and Easy to Use
Compared with the traditional CLB, the NLB does not require additional configuration in the service node. It can be used right away, reducing the complexity of your operations.
- Rich Features
As a business entry, the NLB serves as a traffic entry. It can handle a large number of concurrent connections and provides advanced features such as full port access and cross-domain mounting, meeting more of your business scenarios.
- High Availability
The underlying layer adopts a multi-layer disaster recovery architecture design. Through mechanisms such as cluster disaster recovery, session persistence, and health checks, it ensures the availability of the instance. It also supports mounting cross-regional service nodes, safeguarding your business.