> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/api-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/api-reference/compute/zec/vnic/describenetworkinterfacemonitordata.md).

# DescribeNetworkInterfaceMonitorData

## 1. API Description

This API (DescribeNetworkInterfaceMonitorData) is used to query network interface monitoring metric data within a specified time range. Includes metrics such as bandwidth, packet count, packet loss, and error packets.

## 2. Input Parameters

The following request parameter list only provides API request parameters.

| Parameter Name | Required | Type                                                                               | Description                                                                                                          |
| -------------- | -------- | ---------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------- |
| nicId          | Yes      | String                                                                             | The unique identifier ID of the network interface.                                                                   |
| metricType     | Yes      | [NicApiMonitorMeta](/api-reference/compute/zec/datastructure.md#nicapimonitormeta) | The type of network interface monitoring metric.                                                                     |
| startTime      | Yes      | String                                                                             | <p>The query start time.</p><p>Time format: yyyy-MM-ddTHH:mm:ssZ.</p>                                                |
| endTime        | Yes      | String                                                                             | <p>The query end time.</p><p>Time format: yyyy-MM-ddTHH:mm:ssZ.</p>                                                  |
| step           | No       | Integer                                                                            | <p>Time duration.</p><p>Default value: 5 minutes;</p><p>Supported values: 1 or 5 minutes.</p><p>Default value: 5</p> |

## 3. Output Parameters

| Parameter Name | Type                                                                            | Description                                                                                                           |
| -------------- | ------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- |
| requestId      | String                                                                          | <p>The unique request ID, which is returned for each request.</p><p>RequestId is required for locating a problem.</p> |
| maxValue       | Float                                                                           | The maximum value of the data point.                                                                                  |
| minValue       | Float                                                                           | The minimum value of the data point.                                                                                  |
| avgValue       | Float                                                                           | The average value of the data point.                                                                                  |
| metrics        | Array of [MetricValue](/api-reference/compute/zec/datastructure.md#metricvalue) | The collection of monitoring data.                                                                                    |

## 4. Code Example

{% tabs %}
{% tab title="Example" %}
**Query the `RX_BITS` monitoring metric data for a network interface over a specified time range.**

```json
POST /api/v2/zec HTTP/1.1
Host: console.zenlayer.com
Content-Type: application/json
X-ZC-Action: DescribeNetworkInterfaceMonitorData
<Common Request Params>

Request：
{
    "nicId": "<nicId>",
    "metricType": "RX_BITS",
    "startTime": "2025-06-25T01:55:00Z",
    "endTime": "2025-06-25T07:55:00Z"
}

Response：
{
  "requestId": "T05992D0C-7E8B-4047-B0C0-780F2CD549D3",
  "response": {
    "requestId": "T05992D0C-7E8B-4047-B0C0-780F2CD549D3",
    "maxValue": 1024.0,
    "minValue": 512.0,
    "avgValue": 768.0,
    "metrics": [
      {
        "time": "2025-06-25T01:55:00Z",
        "value": 1024.0
      }
    ]
  }
}
```

{% endtab %}
{% endtabs %}

## 5. Developer Resources

Zenlayer Cloud API 2.0 integrates [SDKs](/api-reference/api-introduction/toolkit/api-sdk.md)，to make it easier for you to call APIs. More programming languages will be supported.

## 6. Error Codes

The following only lists the error codes related to the API business logic. For other error codes, see [Common Error Codes](/api-reference/api-introduction/instruction/commonerrorcode.md).

| HTTP Status Code | Error Code                                  | Description                             |
| ---------------- | ------------------------------------------- | --------------------------------------- |
| 400              | OPERATION\_DENIED\_TIME\_STEP\_NOT\_SUPPORT | Data point intervals are not supported. |