This API is used to modify the name, description, bandwidth, and administrative status of a load balancer.

PUT /v1.0/{project_id}/elbaas/loadbalancers/{loadbalancer_id}

**Table 1** Parameter description
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the project ID.
loadbalancer_id	Yes	String	Specifies the load balancer ID.
name	No	String	Specifies the load balancer name. The value can contain 1 to 64 characters that consist of letters, digits, underscores (_), and hyphens (-).
description	No	String	Provides supplementary information about the load balancer. The value contains 0 to 128 characters and cannot contain angle brackets (< and >).
bandwidth	No	Integer	Specifies the bandwidth (Mbit/s). This parameter is mandatory when type is set to External. The value ranges from 1 to 500. (The specific range may vary depending on the configuration in each region. You can see the bandwidth range of each region on the management console.)
admin_state_up	No	Integer/Boolean	Specifies the administrative status of the load balancer. Optional values: 0 or false: indicates that the load balancer is stopped. Only users are allowed to enter the two values. 1 or true: indicates that the load balancer is running properly. 2 or false: indicates that the load balancer is frozen. Only the administrator is allowed to enter the two values.

Example request

{
    "description": "simple lb",
    "name": "loadbalancer1",
    "bandwidth": 200,
    "admin_state_up": true
}

Response parameters

**Table 2** Parameter description
Parameter	Type	Description
uri	String	Specifies the URI returned by Combined API after the job for modifying a load balancer is delivered.
job_id	String	Specifies the unique ID assigned to the job for modifying a load balancer in Combined API.

Example response

{
    "uri": "/v1/73cd9140bec7427ab9952b4ed75924e0/jobs/4010b39d4fbb4645014fcfddf4b32d15",
    "job_id": "4010b39d4fbb4645014fcfddf4b32d15"
}

Error

Status Code	Message	Description
400	badRequest	Request error.
401	unauthorized	Authentication failed.
403	userDisabled	You do not have the permission to perform the operation.
404	Not Found	The requested page does not exist.
500	authFault	System error.
503	serviceUnavailable	The service is unavailable.

Modifying a Load Balancer