[Yandex Cloud documentation](../../../../index.md) > [Yandex Network Load Balancer](../../../index.md) > API reference > [gRPC](../index.md) > [NetworkLoadBalancer](index.md) > Create # Network Load Balancer API, gRPC: NetworkLoadBalancerService.Create Creates a network load balancer in the specified folder using the data specified in the request. ## gRPC request **rpc Create ([CreateNetworkLoadBalancerRequest](#yandex.cloud.loadbalancer.v1.CreateNetworkLoadBalancerRequest)) returns ([operation.Operation](#yandex.cloud.operation.Operation))** ## CreateNetworkLoadBalancerRequest {#yandex.cloud.loadbalancer.v1.CreateNetworkLoadBalancerRequest} ```json { "folder_id": "string", "name": "string", "description": "string", "labels": "map", "region_id": "string", "type": "Type", "listener_specs": [ { "name": "string", "port": "int64", "protocol": "Protocol", // Includes only one of the fields `external_address_spec`, `internal_address_spec` "external_address_spec": { "address": "string", "ip_version": "IpVersion" }, "internal_address_spec": { "address": "string", "subnet_id": "string", "ip_version": "IpVersion" }, // end of the list of possible fields "target_port": "int64" } ], "attached_target_groups": [ { "target_group_id": "string", "health_checks": [ { "name": "string", "interval": "google.protobuf.Duration", "timeout": "google.protobuf.Duration", "unhealthy_threshold": "int64", "healthy_threshold": "int64", // Includes only one of the fields `tcp_options`, `http_options` "tcp_options": { "port": "int64" }, "http_options": { "port": "int64", "path": "string" } // end of the list of possible fields } ] } ], "deletion_protection": "bool", "allow_zonal_shift": "bool" } ``` #| ||Field | Description || || folder_id | **string** ID of the folder to create a network load balancer in. To get the folder ID, use a [NetworkLoadBalancerService.List](list.md#List) request. The length must be less than or equal to 50. This field is required. || || name | **string** Name of the network load balancer. The name must be unique within the folder. The value must match the regular expression: ```|[a-z][-a-z0-9]{1,61}[a-z0-9]```. || || description | **string** Description of the network load balancer. The length must be less than or equal to 256. || || labels | **object** (map<**string**, **string**>) Resource labels as `` key:value `` pairs. Each map key must match the regular expression: `[a-z][-_0-9a-z]*`. Each map value must match the regular expression: `[-_0-9a-z]*`. The length of each map key must be between 1 and 63. The length of each map value must be less than or equal to 63. The number of elements must be less than or equal to 64. || || region_id | **string** ID of the region where the network load balancer resides. The length must be less than or equal to 50. || || type | enum **Type** Type of the network load balancer. This field is required. - `EXTERNAL`: External network load balancer. - `INTERNAL`: Internal network load balancer. || || listener_specs[] | **[ListenerSpec](#yandex.cloud.loadbalancer.v1.ListenerSpec)** List of listeners and their specs for the network load balancer. The number of elements must be less than or equal to 1000. || || attached_target_groups[] | **[AttachedTargetGroup](#yandex.cloud.loadbalancer.v1.AttachedTargetGroup)** List of attached target groups for the network load balancer. The number of elements must be less than or equal to 1000. || || deletion_protection | **bool** Specifies if network load balancer protected from deletion. || || allow_zonal_shift | **bool** Specifies if network load balancer available to zonal shift. || |# ## ListenerSpec {#yandex.cloud.loadbalancer.v1.ListenerSpec} Listener specification that will be used by a network load balancer. #| ||Field | Description || || name | **string** Name of the listener. The name must be unique for each listener on a single load balancer. 3-63 characters long. The value must match the regular expression: ```|[a-z][-a-z0-9]{1,61}[a-z0-9]```. This field is required. || || port | **int64** Port for incoming traffic. The value must be between 1 and 65535. || || protocol | enum **Protocol** Protocol for incoming traffic. This field is required. - `TCP` - `UDP` || || external_address_spec | **[ExternalAddressSpec](#yandex.cloud.loadbalancer.v1.ExternalAddressSpec)** External IP address specification. Includes only one of the fields `external_address_spec`, `internal_address_spec`. IP address for incoming traffic. Either the ID of the previously created address or the address specification. || || internal_address_spec | **[InternalAddressSpec](#yandex.cloud.loadbalancer.v1.InternalAddressSpec)** Internal IP address specification. Includes only one of the fields `external_address_spec`, `internal_address_spec`. IP address for incoming traffic. Either the ID of the previously created address or the address specification. || || target_port | **int64** Port of a target. Acceptable values are 1 to 65535, inclusive. || |# ## ExternalAddressSpec {#yandex.cloud.loadbalancer.v1.ExternalAddressSpec} External address specification that is used by [ListenerSpec](#yandex.cloud.loadbalancer.v1.ListenerSpec). #| ||Field | Description || || address | **string** Public IP address for a listener. If you provide a static public IP address for the [NetworkLoadBalancerService.Update](update.md#Update) method, it will replace the existing listener address. || || ip_version | enum **IpVersion** IP version. - `IPV4`: IPv4 - `IPV6`: IPv6 || |# ## InternalAddressSpec {#yandex.cloud.loadbalancer.v1.InternalAddressSpec} Internal address specification that is used by [ListenerSpec](#yandex.cloud.loadbalancer.v1.ListenerSpec). #| ||Field | Description || || address | **string** Internal IP address for a listener. || || subnet_id | **string** ID of the subnet. || || ip_version | enum **IpVersion** IP version. - `IPV4`: IPv4 - `IPV6`: IPv6 || |# ## AttachedTargetGroup {#yandex.cloud.loadbalancer.v1.AttachedTargetGroup} An AttachedTargetGroup resource. For more information, see [Targets and groups](../../../concepts/target-resources.md). #| ||Field | Description || || target_group_id | **string** ID of the target group. The length must be less than or equal to 50. This field is required. || || health_checks[] | **[HealthCheck](#yandex.cloud.loadbalancer.v1.HealthCheck)** A health check to perform on the target group. For now we accept only one health check per AttachedTargetGroup. The number of elements must be exactly 1. || |# ## HealthCheck {#yandex.cloud.loadbalancer.v1.HealthCheck} A HealthCheck resource. For more information, see [Health check](../../../concepts/health-check.md). #| ||Field | Description || || name | **string** Name of the health check. The name must be unique for each target group that attached to a single load balancer. 3-63 characters long. The value must match the regular expression: ```|[a-z][-a-z0-9]{1,61}[a-z0-9]```. This field is required. || || interval | **[google.protobuf.Duration](https://developers.google.com/protocol-buffers/docs/reference/csharp/class/google/protobuf/well-known-types/duration)** The interval between health checks. The default is 2 seconds. || || timeout | **[google.protobuf.Duration](https://developers.google.com/protocol-buffers/docs/reference/csharp/class/google/protobuf/well-known-types/duration)** Timeout for a target to return a response for the health check. The default is 1 second. || || unhealthy_threshold | **int64** Number of failed health checks before changing the status to `` UNHEALTHY ``. The default is 2. The value must be between 2 and 10. || || healthy_threshold | **int64** Number of successful health checks required in order to set the `` HEALTHY `` status for the target. The default is 2. The value must be between 2 and 10. || || tcp_options | **[TcpOptions](#yandex.cloud.loadbalancer.v1.HealthCheck.TcpOptions)** Options for TCP health check. Includes only one of the fields `tcp_options`, `http_options`. Protocol to use for the health check. Either TCP or HTTP. Only one field must be specified. || || http_options | **[HttpOptions](#yandex.cloud.loadbalancer.v1.HealthCheck.HttpOptions)** Options for HTTP health check. Includes only one of the fields `tcp_options`, `http_options`. Protocol to use for the health check. Either TCP or HTTP. Only one field must be specified. || |# ## TcpOptions {#yandex.cloud.loadbalancer.v1.HealthCheck.TcpOptions} Configuration option for a TCP health check. #| ||Field | Description || || port | **int64** Port to use for TCP health checks. The value must be between 1 and 65535. || |# ## HttpOptions {#yandex.cloud.loadbalancer.v1.HealthCheck.HttpOptions} Configuration option for an HTTP health check. #| ||Field | Description || || port | **int64** Port to use for HTTP health checks. The value must be between 1 and 65535. || || path | **string** URL path to set for health checking requests for every target in the target group. For example `` /ping ``. The default path is `` / ``. || |# ## operation.Operation {#yandex.cloud.operation.Operation} ```json { "id": "string", "description": "string", "created_at": "google.protobuf.Timestamp", "created_by": "string", "modified_at": "google.protobuf.Timestamp", "done": "bool", "metadata": "google.protobuf.Any", // Includes only one of the fields `error`, `response` "error": "google.rpc.Status", "response": "google.protobuf.Any" // end of the list of possible fields } ``` An Operation resource. For more information, see [Operation](../../../../api-design-guide/concepts/operation.md). #| ||Field | Description || || id | **string** ID of the operation. || || description | **string** Description of the operation. 0-256 characters long. || || created_at | **[google.protobuf.Timestamp](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#timestamp)** Creation timestamp. || || created_by | **string** ID of the user or service account who initiated the operation. || || modified_at | **[google.protobuf.Timestamp](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#timestamp)** The time when the Operation resource was last modified. || || done | **bool** If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available. || || metadata | **[google.protobuf.Any](https://developers.google.com/protocol-buffers/docs/proto3#any)** Service-specific metadata associated with the operation. It typically contains the ID of the target resource that the operation is performed on. Any method that returns a long-running operation should document the metadata type, if any. || || error | **[google.rpc.Status](https://cloud.google.com/tasks/docs/reference/rpc/google.rpc#status)** The error result of the operation in case of failure or cancellation. Includes only one of the fields `error`, `response`. The operation result. If `done == false` and there was no failure detected, neither `error` nor `response` is set. If `done == false` and there was a failure detected, `error` is set. If `done == true`, exactly one of `error` or `response` is set. || || response | **[google.protobuf.Any](https://developers.google.com/protocol-buffers/docs/proto3#any)** The normal response of the operation in case of success. If the original method returns no data on success, such as Delete, the response is [google.protobuf.Empty](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#google.protobuf.Empty). If the original method is the standard Create/Update, the response should be the target resource of the operation. Any method that returns a long-running operation should document the response type, if any. Includes only one of the fields `error`, `response`. The operation result. If `done == false` and there was no failure detected, neither `error` nor `response` is set. If `done == false` and there was a failure detected, `error` is set. If `done == true`, exactly one of `error` or `response` is set. || |#