Server Load Balancer:SetLoadBalancerUDPListenerAttribute

The region ID of the Classic Load Balancer (CLB) instance.

You can find the region ID by calling the DescribeRegions operation.

The ID of the CLB instance.

The frontend port used by the CLB instance.

Valid values: 1 to 65535.

The peak bandwidth of the listener. Unit: Mbit/s. Valid values:

• -1: For an Internet-facing pay-by-traffic CLB instance, set the value to -1. This specifies that the bandwidth of the listener is unlimited.

• 1 to 5120: For an Internet-facing pay-by-bandwidth CLB instance, you can specify the peak bandwidth for each listener. The sum of the peak bandwidth values of all listeners cannot exceed the peak bandwidth of the CLB instance.

The scheduling algorithm. Valid values:

• wrr: Backend servers with higher weights receive more requests than those with lower weights. If backend servers have the same weight, the backend server that has fewer connections receives more requests.

• rr: Requests are distributed to backend servers in sequence.

• sch: Source IP hashing. Requests from the same source IP address are distributed to the same backend server.

• tch: Four-tuple hashing. Requests from the same four-tuple (source IP address, destination IP address, source port, and destination port) are distributed to the same backend server.

• qch: QUIC ID hashing. Requests that have the same QUIC ID are distributed to the same backend server.

The number of consecutive successful health checks that must occur before a backend server can be declared healthy (from unhealthy).

Valid values: 1 to 10.

The number of consecutive failed health checks that must occur before a backend server can be declared unhealthy (from healthy).

Valid values: 1 to 10.

The timeout period of a health check response. If a backend ECS instance does not send an expected response within the specified timeout period, the health check fails. Unit: seconds.

Valid values: 1 to 300.

The port used for health checks.

Valid values: 1 to 65535.

The interval between two consecutive health checks. Unit: seconds.

Valid values: 1 to 50.

The request string for UDP health checks. The string must be 1 to 64 characters in length and can contain only letters and digits.

The response string for UDP health checks. The string must be 1 to 64 characters in length and can contain only letters and digits.

Specifies whether to use a vServer group. Valid values:

• on: yes

• off: no

The ID of the vServer group.

The ID of the primary/secondary server group.

Specifies whether to use a primary/secondary server group. Valid values:

• on: yes

• off: no

The ID of the network access control list (ACL) that is associated with the listener.

The type of the network ACL. Valid values:

• white: a whitelist. Only requests from the IP addresses or CIDR blocks in the network ACL are forwarded. Whitelists are suitable for scenarios where you want to allow access from only specific IP addresses. If you enable a whitelist, but do not add an IP address to the network ACL, the CLB listener forwards all requests.

  If whitelist access is enabled but no IP addresses are added to the access control list, the load balancer listener forwards all requests.

• black: a blacklist. All requests from the IP addresses or CIDR blocks in the network ACL are denied. Blacklists are suitable for scenarios where you want to deny access from specific IP addresses. If you enable a blacklist, but do not add an IP address to the network ACL, the CLB listener forwards all requests.

  If blacklist access control is enabled but no IP addresses are added to the access control list, the load balancer listener forwards all requests.

Specifies whether to enable access control. Valid values:

• on: yes

• off: no

The name of the listener.

The name must be 1 to 256 characters in length, and can contain letters, digits, Chinese characters, and the following special characters: - / . _.

Specifies whether to use the Proxy Protocol to pass client IP addresses to backend servers. Valid values:

• true: yes

• false (default): no

Specifies whether to enable health checks. Valid values:

• on (default): Enabled.

• off: Disabled.