After creating a Server Load Balancer instance, you need to configure a listener for it. The listener checks connection requests and then distributes them to backend servers according to the configured rules.
As shown in the following figure, the listener contains listener configuration and health check configuration.
Alibaba Cloud provides layer-4 (TCP and UDP protocols) and layer-7 (HTTP and HTTPS protocols) load balancing services. Select the protocol based on your business needs:
||Applicable to scenarios with preference of real-time content over reliability, such as video chats and pushes of real-time financial quotations.|
||Applicable to applications that need to recognize data content, such as web applications and small-sized mobile games.|
||Applications requiring encrypted transmission|