After you create a Server Load Balancer (SLB) instance, you must configure a listener for it. The listener checks connection requests and then distributes the requests to backend servers according to configured forwarding rules.
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 needs.
For more information, see Add a TCP listener.
Applicable to scenarios with preference to real-time content over reliability, such as video chats and real-time financial quotations.
For more information, see Add a UDP listener.
Applicable to applications that need to recognize data content, such as web applications and small-sized mobile games.
For more information, see Add an HTTP listener.
Applications that require encrypted transmission.
For more information, see Add an HTTPS listener.