Server Load Balancer:UpdateListenerAttribute

The listener ID.

The name of the listener.

The name must be 2 to 256 characters in length, and can contain letters, digits, commas (,), periods (.), semicolons (;), forward slashes (/), at signs (@), underscores (_), and hyphens (-).

The server group ID.

• If the listener uses TCP, you can specify server groups whose protocol is TCP or TCP_UDP. UDP server groups are not supported.

• If the listener uses UDP, you can specify server groups whose protocol is UDP or TCP_UDP. TCP server groups are not supported.

• If the listener uses TCPSSL, you can specify server groups whose protocol is TCP and whose client IP preservation is disabled. TCP server groups for which client IP preservation is enabled and server groups whose protocol is UDP or TCP_UDP are not supported.

The ID of the security policy.

The server certificate. Only one server certificate is supported.

The CA certificate. You can specify only one CA certificate.

Specifies whether to enable mutual authentication. Valid values:

• true
• false

The timeout period for idle connections. Unit: seconds

• If the listener uses TCP or TCPSSL, you can set this parameter to a value ranging from 10 to 900. Default value: 900
• If the listener uses UDP, you can set this parameter to a value ranging from 10 to 20. Default value: 20

Specifies whether to perform a dry run. Valid values:

• true: validates the request without performing the operation. The system checks the request for potential issues, including missing parameter values, incorrect request syntax, and service limits. If the request fails the validation, the corresponding error message is returned. If the request passes the validation, the DryRunOperation error code is returned.
• false (default): validates the request and performs the operation. If the request passes the validation, a 2xx HTTP status code is returned and the operation is performed.

The client token used to ensure the idempotence of the request.

You can use the client to generate the token. Ensure that the token is unique among different requests. Only ASCII characters are allowed.

The ID of the region where the NLB instance is deployed.

You can call the DescribeRegions operation to query the most recent region list.

Specifies whether to use the Proxy protocol to pass the client IP address to the backend server. Valid values:

• true
• false

Specifies whether to enable fine-grained monitoring. Valid values:

• true
• false

Specifies whether to enable Application-Layer Protocol Negotiation (ALPN). Valid values:

• true
• false

The ALPN policy. Valid values:

• HTTP1Only: uses only HTTP 1.x. The priority of HTTP 1.1 is higher than the priority of HTTP 1.0.
• HTTP2Only: uses only HTTP 2.0.
• HTTP2Optional: preferentially uses HTTP 1.x over HTTP 2.0. The priority of HTTP 1.1 is higher than the priority of HTTP 1.0, and the priority of HTTP 1.0 is higher than the priority of HTTP 2.0.
• HTTP2Preferred: preferentially uses HTTP 2.0 over HTTP 1.x. The priority of HTTP 2.0 is higher than the priority of HTTP 1.1, and the priority of HTTP 1.1 is higher than the priority of HTTP 1.0.

The maximum number of new connections per second supported by the listener in each zone (virtual IP address). Valid values: 0 to 1000000. 0 indicates that the number of connections is unlimited.

The size of the largest TCP packet segment. Unit: bytes. Valid values: 0 to 1500. 0 indicates that the maximum segment size (MSS) remains unchanged. This parameter is supported only by TCP listeners and listeners that use SSL over TCP.

Specifies that the Proxy protocol passes the VpcId, PrivateLinkEpId, and PrivateLinkEpsId parameters to backend servers.