Viewing the Details of a Listener
Function
This API is used to view the details of a listener.
Calling Method
For details, see Calling APIs.
URI
GET /v3/{project_id}/elb/listeners/{listener_id}
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Definition: Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID. Constraints: N/A Range: The value can contain a maximum of 32 characters, including digits and lowercase letters. Default value: N/A |
listener_id |
Yes |
String |
Definition: Specifies the listener ID. Constraints: N/A Range: N/A Default value: N/A |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
Definition: Specifies the token used for IAM authentication. Constraints:N/A Range: N/A Default value: N/A |
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
request_id |
String |
Definition: Specifies the request ID. Range: The value is automatically generated, and can contain characters including digits, lowercase letters, and hyphens (-). |
listener |
Listener object |
Definition: Specifies the listener. |
Parameter |
Type |
Description |
---|---|---|
admin_state_up |
Boolean |
Definition: Specifies the administrative status of the listener. Default value: true |
client_ca_tls_container_ref |
String |
Definition: Specifies the ID of the CA certificate used by the listener. This parameter is available only when type is set to client. Default value: N/A |
connection_limit |
Integer |
Definition: Specifies the maximum number of connections that the listener can establish with backend servers. Range: an integer greater than or equal to -1 |
created_at |
String |
Definition: Specifies the time when the listener was created. Range: N/A The value must be in the format of yyyy-MM-dd''T''HH:mm:ss''Z'', for example, 2021-07-30T12:03:44Z. |
default_pool_id |
String |
Definition: Specifies the ID of the default backend server group of the listener. If there is no matched forwarding policy, requests will be routed to the default backend server group. Range: N/A |
default_tls_container_ref |
String |
Definition: Specifies the ID of the server certificate used by the listener. Default value: N/A |
description |
String |
Definition: Provides supplementary information about the listener. Range: N/A |
http2_enable |
Boolean |
Definition: Specifies whether to allow clients to use HTTP/2 to communicate with the load balancer for higher access performance. However, the load balancer still uses HTTP/1.x to forward requests to the backend server. Range: N/A |
id |
String |
Definition: Specifies the listener ID. Range: N/A |
insert_headers |
ListenerInsertHeaders object |
Definition: Specifies the HTTP headers that can transmit required information to backend servers. For example, you can use the X-Forwarded-ELB-IP header to transmit the load balancer EIP to backend servers. |
loadbalancers |
Array of LoadBalancerRef objects |
Definition: Specifies the ID of the load balancer that the listener is added to. A listener can be associated with only one load balancer. |
name |
String |
Definition: Specifies the name of the listener. If you leave the listener name empty, you cannot locate it in the listener list and view its details. Range: N/A |
project_id |
String |
Definition: Specifies the ID of the project that the listener belongs to. Range: N/A |
enterprise_project_id |
String |
Definition: Specifies the enterprise project ID. Range: N/A |
protocol |
String |
Definition: Specifies the protocol of the listener. Range: The value can be TCP, UDP, HTTP, HTTPS, or IP. IP is only available for listeners that will be added to gateway load balancers. |
protocol_port |
Integer |
Definition: Specifies the port used by the listener. Default value: N/A |
sni_container_refs |
Array of strings |
Definition: Specifies the IDs of SNI certificates (server certificates with domain names) used by the listener. Range: N/A |
sni_match_algo |
String |
Definition: Specifies how wildcard domain name matches with the SNI certificates used by the listener. Range: longest_suffix indicates longest suffix match. wildcard indicates wildcard match. |
tags |
Array of Tag objects |
Definition: Lists the tags. |
updated_at |
String |
Definition: Specifies the time when the listener was updated. Range: The value must be in the format of yyyy-MM-dd''T''HH:mm:ss''Z'', for example, 2021-07-30T12:03:44Z. |
tls_ciphers_policy |
String |
Definition: Specifies the security policy used by the listener. Range: tls-1-0, tls-1-1, tls-1-2, or tls-1-2-strict. The default value is tls-1-2. TLS 1.3 is not supported. |
security_policy_id |
String |
Definition: Specifies the ID of the custom security policy. Range: N/A |
enable_member_retry |
Boolean |
Definition: Specifies whether to enable health check retries for backend servers. Range: true indicates health check retries will be enabled. false indicates health check retries will be disabled. |
keepalive_timeout |
Integer |
Definition: Specifies the idle timeout duration, in seconds. If the load balancer receives no requests within the idle timeout duration, it will disconnect the connection with the client and establish a new connection when there is a new request. Range:
|
client_timeout |
Integer |
Definition: Specifies the timeout duration for waiting for a response from a client, in seconds. There are two situations:
Range: 1-300s |
member_timeout |
Integer |
Definition: Specifies the timeout duration for waiting for a response from a backend server, in seconds. If the backend server fails to respond after the timeout duration elapses, the load balancer will stop waiting and return HTTP 504 Gateway Timeout to the client. Range: 1-300s |
ipgroup |
ListenerIpGroup object |
Specifies the IP address group associated with the listener. |
transparent_client_ip_enable |
Boolean |
Definition: Specifies whether to pass source IP addresses of the clients to backend servers. If it is enabled, the source IP addresses of the clients will be passed to the backend server. Range:
|
proxy_protocol_enable |
Boolean |
Definition: Specifies whether to enable ProxyProtocol to pass the source IP addresses of the clients to backend servers. This parameter is available only for TLS listeners and does not take effect for other types of listeners. Range: The value can be true (enable this option) or false (disable this option). |
enhance_l7policy_enable |
Boolean |
Definition: Specifies whether to enable advanced forwarding. If advanced forwarding is enabled, more flexible forwarding policies and rules are supported. The following scenarios are supported:
Range: The value can be true (enable this option) or false (disable this option). |
quic_config |
ListenerQuicConfig object |
Definition: Specifies the QUIC configuration for the current listener. Constraints: This parameter is valid only when protocol is set to HTTPS. For a TCP, UDP, HTTP, or QUIC listener, if this parameter is not left blank, an error will be reported.
NOTE:
Suppose the client sends an HTTP request to the server and carries information indicating that the QUIC protocol is supported.
If enable_quic_upgrade is set to true, the QUIC port and version information supported by the server will be included in the response header. When the client sends both HTTPS and QUIC requests, if the QUIC request is sent and responded, the client will use the QUIC protocol to communicate with the backend servers. QUIC is not supported. |
gzip_enable |
Boolean |
Definition: Specifies whether to enable gzip_enable for a load balancer. Range: The value can be true (enable this option) or false (disable this option). |
port_ranges |
Array of PortRange objects |
Definition: Specifies one or more port ranges, including the start and end ports. |
cps |
Integer |
Definition: Specifies the maximum number of new connections that a listener can handle per second. If the value is greater than the number defined in the load balancer flavors, the latter is used as the limit. Range: 0 to 1000000 |
connection |
Integer |
Definition: Specifies the maximum number of concurrent connections that a listener can handle per second. If the value is greater than the number defined in the load balancer flavors, the latter is used as the limit. Range: 0 to 1000000 |
nat64_enable |
Boolean |
Definition: Specifies whether to translate between IPv4 and IPv6 addresses. This option allows a client to access IPv4 or IPv6 backend servers by accessing the IPv4 or IPv6 address of a load balancer. Range: true: Enable nat64_enable. false: Disable nat64_enable. |
Parameter |
Type |
Description |
---|---|---|
X-Forwarded-ELB-IP |
Boolean |
Definition: If X-Forwarded-ELB-IP is set to true, the load balancer EIP will be stored in the X-Forwarded-ELB-IP header and passed to backend servers. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-Port |
Boolean |
Definition: If X-Forwarded-Port is set to true, the listening port of the load balancer will be stored in the X-Forwarded-Port header and passed to backend servers. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-For-Port |
Boolean |
Definition: If X-Forwarded-For-Port is set to true, the source port of the client will be stored in the HTTP header and passed to backend servers. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-Host |
Boolean |
Definition: If X-Forwarded-Host is set to true, the client host can be stored in the X-Forwarded-Host header and passed to backend servers. |
X-Forwarded-Proto |
Boolean |
Definition: If X-Forwarded-Proto is set to true, the listener protocol of the load balancer can be stored in the X-Forwarded-Proto header and passed to backend servers. Constraints: N/A Range: N/A Default value: N/A |
X-Real-IP |
Boolean |
Definition: If X-Real-IP is set to true, the client IP address can be stored in the X-Real-IP header and passed to backend servers. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-ELB-ID |
Boolean |
Definition: If X-Forwarded-ELB-ID is set to true, the load balancer ID can be transferred to backend servers through the X-Forwarded-ELB-ID header. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-TLS-Certificate-ID |
Boolean |
Definition: If X-Forwarded-TLS-Certificate-ID is set to true, the certificate ID of the load balancer can be transferred to backend servers through the X-Forwarded-TLS-Certificate-ID header. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-TLS-Protocol |
Boolean |
Definition: If X-Forwarded-TLS-Protocol is set to true, the algorithm protocol of the load balancer can be transferred to backend servers through the X-Forwarded-TLS-Protocol header. Constraints: N/A Range: N/A Default value: N/A |
X-Forwarded-TLS-Cipher |
Boolean |
Definition: If X-Forwarded-TLS-Cipher is set to true, the algorithm suite of the load balancer can be transferred to backend servers through the X-Forwarded-TLS-Cipher header. Constraints: N/A Range: N/A Default value: N/A |
Parameter |
Type |
Description |
---|---|---|
id |
String |
Definition: Specifies the load balancer ID. |
Parameter |
Type |
Description |
---|---|---|
key |
String |
Definition: Specifies the tag key. Range: N/A |
value |
String |
Definition: Specifies the tag value. Range: N/A |
Parameter |
Type |
Description |
---|---|---|
ipgroup_id |
String |
Definition: Specifies the ID of the IP address group associated with the listener. This parameter is mandatory during creation and is optional during update. Constraints: The specified IP address group must exist, and the value cannot be null. Otherwise, the IP address group conflicts with enable_ipgroup. |
enable_ipgroup |
Boolean |
Definition: Specifies whether access control is enabled. A listener with access control enabled can be directly deleted. Range:
|
type |
String |
Definition: Specifies how access to the listener is controlled. Range:
|
Parameter |
Type |
Description |
---|---|---|
quic_listener_id |
String |
Definition: Specifies the ID of the QUIC listener. Constraints: The listener specified by quic_listener_id must exist. The listener protocol must be QUIC and cannot be set to null. Otherwise, it will conflict with enable_quic_upgrade. QUIC is not supported. |
enable_quic_upgrade |
Boolean |
Definition: Specifies whether to enable QUIC upgrade. If this option is enabled, HTTPS listeners will be upgraded to QUIC listeners. Range:
QUIC is not supported. |
Example Requests
Viewing the details of a listener
GET https://{ELB_Endpoint}/v3/99a3fff0d03c428eac3678da6a7d0f24/elb/listeners/0b11747a-b139-492f-9692-2df0b1c87193
Example Responses
Status code: 200
Successful request.
{ "listener" : { "id" : "0b11747a-b139-492f-9692-2df0b1c87193", "name" : "My listener", "protocol_port" : 80, "protocol" : "TCP", "ipgroup" : null, "description" : "My listener update.", "default_tls_container_ref" : null, "admin_state_up" : true, "loadbalancers" : [ { "id" : "098b2f68-af1c-41a9-8efd-69958722af62" } ], "member_timeout" : null, "client_timeout" : null, "keepalive_timeout" : 300, "client_ca_tls_container_ref" : null, "project_id" : "99a3fff0d03c428eac3678da6a7d0f24", "sni_container_refs" : [ ], "connection_limit" : -1, "default_pool_id" : null, "tls_ciphers_policy" : "tls-1-0", "tags" : [ ], "created_at" : "2019-04-02T00:12:32Z", "updated_at" : "2019-04-02T17:43:46Z", "http2_enable" : true, "insert_headers" : { "X-Forwarded-ELB-IP" : true }, "transparent_client_ip_enable" : false, "nat64_enable" : false }, "request_id" : "1394eb39-e4c8-4177-b96d-aaff569f1833" }
Status Codes
Status Code |
Description |
---|---|
200 |
Successful request. |
Error Codes
See Error Codes.
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