Listeners whose origin server type is domain name only support RR scheduling policy. If the domain name is resolved to multiple IPs, each resolved IP is scheduled according to the RR policy.
Response Timeout: The timeout period for a response.
Health Check Interval: It refers to the interval between two consecutive health checks. If an origin server is checked as abnormal, the origin server will stop forwarding packets until it recovers to a normal status upon another health check.
Open the TCP/UDP Listener Management tab and click Set in the operation column of a listener to modify its name, scheduling policy, and health check parameters.
Open the TCP/UDP Listener Management tab and click Bind Origin Servers in the operation column of a listener to bind or unbind one or multiple origin servers. If no origin server information is found, the origin server type may be invalid or the origin server is not added to Origin Server Management.
If the listener policy is Weighted RR, you can set the weight (1–100) of an origin server while binding it. The origin server is scheduled based on the ratio of its weight to the total weight. For example, if the weight of origin server A is 60 and that of origin server B is 80, the scheduling ratio will be 60/(60 + 80) = 42.8% for origin server A or 57.2% for origin server B.
If enabled, health check will start when the origin server is bound. You can determine whether the origin server is normal by checking the listener status. An acceleration connection will only forward packets to origin servers in normal status. Packets will not be forwarded to abnormal origin servers until they return to normal status during health check.
For UDP listeners or the ones without health checks, packets are always forwarded regardless of the status of the origin server.
Open the TCP/UDP Listener Management tab and click Delete to delete a listener. If the listener is bound with an origin server, you need to tick Allow force deletion of listeners bound with origin server first. After deletion, the acceleration service for the listener's port stops.