Function

This API is used to update a load balancer.

URI

PUT /v3/{project_id}/elb/loadbalancers/{loadbalancer_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
loadbalancer_id	Yes	String	Specifies the load balancer ID. Minimum: 0 Maximum: 36
project_id	Yes	String	Specifies the project ID. Minimum: 0 Maximum: 36

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Specifies the token used for IAM authentication. Minimum: 0 Maximum: 4096

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
loadbalancer	Yes	UpdateLoadBalancerOption object	Specifies the load balancer.

**Table 4** UpdateLoadBalancerOption
Parameter	Mandatory	Type	Description
name	No	String	Specifies the load balancer name. Minimum: 0 Maximum: 255
admin_state_up	No	Boolean	Specifies the administrative status of the load balancer. The value can only be true. This parameter is unsupported. Please do not use it.
description	No	String	Provides supplementary information about the load balancer. Minimum: 0 Maximum: 255
ipv6_vip_virsubnet_id	No	String	Specifies the ID of the IPv6 subnet where the load balancer resides. You can query parameter id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). The IPv6 subnet can be updated using ipv6_vip_virsubnet_id, and the private IPv6 address of the load balancer will be changed accordingly. Note: This parameter will be passed only when IPv6 is enabled for the subnet. The subnet specified by ipv6_vip_virsubnet_id must be in the VPC specified by vpc_id. This parameter can be updated only when guaranteed is set to true. The value will become null if the IPv6 address is unbound from the load balancer. The IPv4 subnet will not change, if IPv6 subnet is updated.
vip_subnet_cidr_id	No	String	Specifies the ID of the IPv4 subnet where the load balancer resides. You can query parameter neutron_subnet_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). The IPv4 subnet can be updated using vip_subnet_cidr_id, and the private IPv4 address of the load balancer will be changed accordingly. If vip_address is also specified, the IP address specified by vip_address must be in the subnet specified by vip_subnet_cidr_id and will be used as the private IPv4 address of the load balancer. The IPv4 subnet must be in the VPC where the load balancer resides. This parameter can be updated only when guaranteed is set to true. The value will become null if the private IPv4 address is unbound from the load balancer. The IPv6 subnet will not change, if IPv4 subnet is updated. Note: Minimum: 1 Maximum: 36
vip_address	No	String	Specifies the private IPv4 address bound to the load balancer. The IP address must be from the IPv4 subnet where the load balancer resides and should not be occupied by other services. vip_address can be updated only when guaranteed is set to true. Minimum: 1 Maximum: 36
l4_flavor_id	No	String	Specifies the ID of a flavor at Layer 4. Note: This parameter can be updated only when guaranteed is set to true. The value cannot be changed from null to a specific value, or in the other way around. If you change the flavor, you can select only a higher or lower one. If you select a lower one, part of persistent connections will be interrupted. If L7_elastic_max is specified, the load balancer uses the elastic specifications. Minimum: 1 Maximum: 255
l7_flavor_id	No	String	Specifies the ID of a flavor at Layer 7. Note: This parameter can be updated only when guaranteed is set to true. The value cannot be changed from null to a specific value, or in the other way around. If you change the flavor, you can select only a higher or lower one. If you select a lower one, part of persistent connections will be interrupted. If L7_elastic_max is specified, the load balancer uses the elastic specifications. Minimum: 1 Maximum: 36
ipv6_bandwidth	No	BandwidthRef object	Specifies the ID of the bandwidth used by an IPv6 address. This parameter is available only when you create or update a load balancer with a public IPv6 address. If you use a new IPv6 address and specify a shared bandwidth, the IPv6 address will be added to the shared bandwidth.
ip_target_enable	No	Boolean	Specifies whether to enable IP as a Backend Server. If you enable this function, you can add servers in a peer VPC connected through a VPC peering connection, or in an on-premises data center at the other end of a Direct Connect or VPN connection, by using their IP addresses. This function is supported only by dedicated load balancers. The value can be true (enable IP as a Backend Server) or false (disable IP as a Backend Server). The value can only be update to true.
elb_virsubnet_ids	No	Array of strings	Specifies the IDs of subnets on the downstream plane. You can query parameter neutron_network_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). If the IDs of the subnets required by the load balancer are specified in elb_virsubnet_ids, the subnets will still be bound to the load balancer. If the IDs of the subnets required by the load balancer are not specified in elb_virsubnet_ids, the subnets will be unbound from the load balancers. Do not unbound the subnets that have been used by the load balancer. Otherwise, an error will be returned. If the IDs of the subnets are specified in elb_virsubnet_ids, but not on the downstream plane, a new load balancer will be bound to the downstream plane. Note: All subnets belong to the same VPC where the load balancer resides. Edge subnets are not supported. Minimum: 1 Maximum: 64 Array Length: 0 - 64
deletion_protection_enable	No	Boolean	Specifies whether to enable deletion protection for the load balancer. true: Enable deletion protection. false: Disable deletion protection. NOTE: Disable deletion protection for all your resources before deleting your account.
waf_failure_action	No	String	Specifies traffic distributing policies when the WAF is faulty. discard: Traffic will not be distributed. forward: Traffic will be distributed to the default backend servers. Note: This parameter takes effect only when WAF is enabled for the load balancer. This parameter is unsupported. Please do not use it. Minimum: 0 Maximum: 36
protection_status	No	String	Specifies the protection status. Value options: nonProtection: The load balancer is not protected. consoleProtection: Modification Protection is enabled on the console.
protection_reason	No	String	Specifies why the modification protection is enabled. Note: This parameter is valid only when protection_status is set to consoleProtection. If protection_status is set to nonProtection, the value of protection_reason is removed. The value can contain a maximum of 255 Unicode characters, excluding angle brackets (<>). Minimum: 0 Maximum: 255

**Table 5** BandwidthRef
Parameter	Mandatory	Type	Description
id	Yes	String	Specifies the shared bandwidth ID.

Response Parameters

Status code: 200

**Table 6** Response body parameters
Parameter	Type	Description
loadbalancer	LoadBalancer object	Specifies the load balancer.
request_id	String	Specifies the request ID. The value is automatically generated. Minimum: 0 Maximum: 36

**Table 7** LoadBalancer
Parameter	Type	Description
id	String	Specifies the load balancer ID.
description	String	Provides supplementary information about the load balancer. Minimum: 1 Maximum: 255
provisioning_status	String	Specifies the provisioning status of the load balancer. The value can be one of the following: ACTIVE: The load balancer is successfully provisioned. PENDING_DELETE: The load balancer is being deleted.
admin_state_up	Boolean	Specifies the administrative status of the load balancer. The value can only be true.
provider	String	Specifies the provider of the load balancer. The value can only be vlb.
pools	Array of PoolRef objects	Lists the IDs of backend server groups associated with the load balancer.
listeners	Array of ListenerRef objects	Lists the IDs of listeners added to the load balancer.
operating_status	String	Specifies the operating status of the load balancer. The value can only be ONLINE, indicating that the load balancer is running normally.
name	String	Specifies the load balancer name.
project_id	String	Specifies the project ID of the load balancer.
vip_subnet_cidr_id	String	Specifies the ID of the IPv4 subnet where the load balancer resides.
vip_address	String	Specifies the private IPv4 address bound to the load balancer.
vip_port_id	String	Specifies the ID of the port bound to the private IPv4 address of the load balancer. The default security group associated with the port will take effect only after at least one backend server is associated with load balancer.
tags	Array of Tag objects	Lists the tags added to the load balancer.
created_at	String	Specifies the time when the load balancer was created, in the format of yyyy-MM-dd''T''HH:mm:ss''Z''.
updated_at	String	Specifies the time when the load balancer was updated, in the format of yyyy-MM-dd''T''HH:mm:ss''Z''.
guaranteed	Boolean	Specifies whether the load balancer is a dedicated load balancer. true (default): The load balancer is a dedicated load balancer. false: The load balancer is a shared load balancer.
vpc_id	String	Specifies the ID of the VPC where the load balancer resides.
eips	Array of EipInfo objects	Specifies the EIP bound to the load balancer. Only one EIP can be bound to a load balancer. This parameter has the same meaning as publicips.
ipv6_vip_address	String	Specifies the IPv6 address bound to the load balancer.
ipv6_vip_virsubnet_id	String	Specifies the ID of the IPv6 subnet where the load balancer resides.
ipv6_vip_port_id	String	Specifies the ID of the port bound to the IPv6 address of the load balancer.
availability_zone_list	Array of strings	Specifies the list of AZs where the load balancer is created.
enterprise_project_id	String	Specifies the enterprise project ID. If this parameter is not passed during resource creation, "0" will be returned, and the resource belongs to the default enterprise project. "0" is not a valid enterprise project ID and cannot be used in the APIs for creating, updating the load balancer, or querying details of the load balancer. This parameter is unsupported. Please do not use it.
billing_info	String	Provides resource billing information. This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 1024
l4_flavor_id	String	Specifies the ID of a flavor at Layer 4. Minimum: 1 Maximum: 255
l4_scale_flavor_id	String	Specifies the ID of the reserved flavor at Layer 4. This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 255
l7_flavor_id	String	Specifies the ID of a flavor at Layer 7. Minimum: 1 Maximum: 255
l7_scale_flavor_id	String	Specifies the ID of the reserved flavor at Layer 7. This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 255
publicips	Array of PublicIpInfo objects	Specifies the EIP bound to the load balancer. Only one EIP can be bound to a load balancer. This parameter has the same meaning as eips.
global_eips	Array of GlobalEipInfo objects	Specifies the global EIP bound to the load balancer. Only the first global EIP specified under global_eips will be bound. This parameter is unsupported. Please do not use it.
elb_virsubnet_ids	Array of strings	Lists the IDs of subnets on the downstream plane.
elb_virsubnet_type	String	Specifies the type of the subnet on the downstream plane. ipv4: IPv4 subnet dualstack: subnet that supports IPv4/IPv6 dual stack
ip_target_enable	Boolean	Specifies whether to enable IP as a Backend Server. If you enable this function, you can add servers in a peer VPC connected through a VPC peering connection, or in an on-premises data center at the other end of a Direct Connect or VPN connection, by using their IP addresses. This function is supported only by dedicated load balancers. The value can be true (enable IP as a Backend Server) or false (disable IP as a Backend Server). The value can only be update to true.
frozen_scene	String	Specifies the scenario where the load balancer is frozen. Multiple values are separated using commas (,). This parameter is unsupported. Please do not use it.
ipv6_bandwidth	BandwidthRef object	Specifies the ID of the bandwidth used by an IPv6 address. This parameter is available only when you create or update a load balancer with a public IPv6 address. If you use a new IPv6 address and specify a shared bandwidth, the IPv6 address will be added to the shared bandwidth.
deletion_protection_enable	Boolean	Specifies whether deletion protection is enabled. false: Deletion protection is not enabled. true: Deletion protection is enabled. NOTE: Disable deletion protection for all your resources before deleting your account. This parameter is returned only when deletion protection is enabled at the site.
autoscaling	AutoscalingRef object	Specifies the information about elastic scaling. If elastic scaling is enabled, the load balancer specifications can be automatically adjusted based on incoming traffic. Note: This parameter is only available for users on the whitelist. If elastic scaling is enabled, l4_flavor_id indicates the ID of the maximmum elastic flavor at Layer 4. l7_flavor_id indicates the ID of the maximmum elastic flavor at Layer 7.
public_border_group	String	Specifies the AZ group to which the load balancer belongs.
waf_failure_action	String	Specifies traffic distributing policies when the WAF is faulty. discard: Traffic will not be distributed. forward: Traffic will be distributed to the default backend servers. Note: This parameter takes effect only when WAF is enabled for the load balancer. This parameter is unsupported. Please do not use it.
charge_mode	String	Specifies the charge mode when creating a load balancer. Value options: flavor: billed by the specification you select. lcu: billed by how many LCUs you have used.
protection_status	String	Specifies the protection status. Value options: nonProtection (default): The load balancer is not protected. consoleProtection: Modification Protection is enabled on the console.
protection_reason	String	Specifies why the modification protection is enabled. Note: This parameter is valid only when protection_status is set to consoleProtection. The value can contain a maximum of 255 Unicode characters, excluding angle brackets (<>). Minimum: 0 Maximum: 255
loadbalancer_type	String	Definition: Specifies the load balancer type. Range: gateway: gateway load balancers null: other types of load balancers This parameter is unsupported. Please do not use it.
gw_flavor_id	String	Definition: Specifies the flavor ID of the gateway load balancer. Range: N/A This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 36
instance_type	String	Definition: Specifies the internal service to which the load balancer belongs. Range: N/A This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 36
instance_id	String	Definition: Specifies the ID of the instance with which the load balancer is associated. Range: N/A This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 36
log_group_id	String	Definition: Specifies the ID of the log group that is associated with the load balancer. Range: N/A
log_topic_id	String	Definition: Specifies the ID of the log topic that is associated with the load balancer. Range: N/A
custom_qos_limit	CustomQosLimit object	Definition: Specifies the rate limit information of the ELB flavors. Range: N/A This parameter is unsupported. Please do not use it.
service_lb_mode	String	Definition: Specifies load balancer mode. Range: lb: Cross-tenant access is not supported. This parameter is unsupported. Please do not use it. Minimum: 1 Maximum: 36
proxy_protocol_extensions	Array of ProxyProtocolExtension objects	Definition: Specifies the proxy protocol extension. This parameter is unsupported. Please do not use it.

**Table 8** PoolRef
Parameter	Type	Description
id	String	Specifies the ID of the backend server group.

**Table 9** ListenerRef
Parameter	Type	Description
id	String	Specifies the listener ID.

**Table 10** Tag
Parameter	Type	Description
key	String	Specifies the tag key. Minimum: 1 Maximum: 36
value	String	Specifies the tag value. Minimum: 0 Maximum: 43

**Table 11** EipInfo
Parameter	Type	Description
eip_id	String	eip_id
eip_address	String	eip_address
ip_version	Integer	Specifies the IP version. 4 indicates IPv4, and 6 indicates IPv6.

**Table 12** PublicIpInfo
Parameter	Type	Description
publicip_id	String	Specifies the EIP ID.
publicip_address	String	Specifies the IP address.
ip_version	Integer	Specifies the IP version. The value can be 4 (IPv4) or 6 (IPv6).

**Table 13** GlobalEipInfo
Parameter	Type	Description
global_eip_id	String	Specifies the ID of the global EIP.
global_eip_address	String	Specifies the global EIP.
ip_version	Integer	Specifies the IP version. The value can be 4 and 6. 4 indicates an IPv4 address, and 6 indicates an IPv6 address.

**Table 14** BandwidthRef
Parameter	Type	Description
id	String	Specifies the shared bandwidth ID.

**Table 15** AutoscalingRef
Parameter	Type	Description
enable	Boolean	Specifies whether to enable elastic scaling for the load balancer. true: Enable elastic scaling. false: Disable elastic scaling. Default: false
min_l7_flavor_id	String	Specifies the ID of the minimum elastic flavor at Layer 7. This parameter cannot be left blank if there are HTTP or HTTPS listeners. Minimum: 1 Maximum: 36

**Table 16** CustomQosLimit
Parameter	Type	Description
l4	L4Limit object	Definition: Specifies the rate limit information of the ELB flavors at Layer 4.
l7	L7Limit object	Definition: Specifies the rate limit information of the ELB flavors at Layer 7.

**Table 17** L4Limit
Parameter	Type	Description
connection	Integer	Definition: Specifies the maximum number of concurrent connections at Layer 4. Range: N/A
cps	Integer	Definition: Specifies the maximum number of new connections per second at Layer 4. Range: N/A

**Table 18** L7Limit
Parameter	Type	Description
connection	Integer	Definition: Specifies the maximum number of concurrent connections at Layer 7. Range: N/A
cps	Integer	Definition: Specifies the maximum number of new connections per second at Layer 7. Range: N/A

**Table 19** ProxyProtocolExtension
Parameter	Type	Description
vip_address	String	Definition: Specifies the IPv4 address. Constraints: N/A Range: N/A Default value: N/A
ipv6_vip_address	String	Definition: Specifies the IPv6 address. Constraints: N/A Range: N/A Default value: N/A
extension	Extension object	Definition: Specifies the proxy protocol extension. Constraints: N/A

**Table 20** Extension
Parameter	Type	Description
ep_id	String	Definition: Specifies the VPC endpoint ID. Constraints: N/A Range: N/A Default value: N/A
ep_service_id	String	Definition: Specifies the VPC endpoint service ID. Constraints: N/A Range: N/A Default value: N/A

Example Requests

Updating a load balancer

PUT https://{ELB_Endpoint}/v3/{project_id}/elb/loadbalancers/{loadbalancer_id}

{
  "loadbalancer" : {
    "description" : "loadbalancer",
    "name" : "loadbalancer-update"
  }
}

Example Responses

Status code: 200

Successful request.

{
  "request_id" : "010dad1e-32a3-4405-ab83-62a1fc5f8722",
  "loadbalancer" : {
    "id" : "2e073bf8-edfe-4e51-a699-d915b0b8af89",
    "project_id" : "b2782e6708b8475c993e6064bc456bf8",
    "name" : "loadbalancer-update",
    "description" : "loadbalancer",
    "vip_port_id" : null,
    "vip_address" : null,
    "admin_state_up" : true,
    "provisioning_status" : "ACTIVE",
    "operating_status" : "ONLINE",
    "listeners" : [ {
      "id" : "41937176-bf64-4b58-8e0d-9ff2d0d32c54"
    }, {
      "id" : "abc6ac93-ad0e-4765-bd5a-eec632efde56"
    }, {
      "id" : "b9d8ba97-6d60-467d-838d-f3550b54c22a"
    }, {
      "id" : "fd797ebd-263d-4b18-96e9-e9188d36c69e"
    } ],
    "pools" : [ {
      "id" : "0aabcaa8-c35c-4ddc-a60c-9032d0ac0b80"
    }, {
      "id" : "165d9092-396e-4a8d-b398-067496a447d2"
    } ],
    "tags" : [ ],
    "provider" : "vlb",
    "created_at" : "2019-04-20T03:10:37Z",
    "updated_at" : "2019-05-24T02:11:58Z",
    "vpc_id" : "2037c5bb-e04b-4de2-9300-9051af18e417",
    "enterprise_project_id" : "0",
    "availability_zone_list" : [ "AZ1", "AZ2", "dc3" ],
    "ipv6_vip_address" : null,
    "ipv6_vip_virsubnet_id" : null,
    "ipv6_vip_port_id" : null,
    "eips" : [ ],
    "guaranteed" : true,
    "billing_info" : null,
    "l4_flavor_id" : null,
    "l4_scale_flavor_id" : null,
    "l7_flavor_id" : null,
    "l7_scale_flavor_id" : null,
    "vip_subnet_cidr_id" : null,
    "deletion_protection_enable" : false,
    "public_border_group" : "center",
    "waf_failure_action" : "forward"
  }
}

Status Codes

Status Code	Description
200	Successful request.

Error Codes

See Error Codes.

Updating a Load Balancer

Function

URI

Request Parameters

Response Parameters

Example Requests

Example Responses

Status Codes

Error Codes