Managing Metric Alert Rules

The Stream Alert Rule Management APIs offer a method to send an alert event to a Sink Type when a metric crosses a defined threshold value. The Metric Alert Rule can define both a warningThreshold and a criticalThreshold, which will trigger a metric alert event if the metric value falls below or exceeds the expected threshold.

Once you create a Metric Alert Rule, you will receive an event when the threshold value is crossed. For the example below, an alert event was raised when the Port Bandwidth Transmitted (tx) Rate exceeded the warning threshold. An additional alert event would have been raised if the Port Bandwidth Transmitted (tx) Rate exceeded the critical warning. Once the transmitted rate falls below the warning threshold, a clear metric alert event would be generated.

note

In order to receive the event triggered by a Metric Alert Rule, you need to be able to receive events from an stream you have a subscription to in a sink of your choice. The events triggered by a Metric Alert Rule are not available in the Customer Portal or the API.

To view the list of supported metrics, refer to the Metrics page.

Creating a Metric Alert Rule

To create a metric alert rule, send a POST request to the /fabric/v4/streams/{streamId}/alertRules endpoint.

Sample cURL Request:

curl -X 'POST' 'https://api.equinix.com/fabric/v4/streams/<streamId>/alertRules' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <Bearer Token>' \
-d '{
    "type": "METRIC_ALERT",
    "name": "<alert_rule_name>",
    "description": "<alert_rule_desc>",
    "enabled": "true",
    "metricName": "equinix.fabric.port.bandwidth_tx.usage",
    "resourceSelector": {
        "include": [
            "*/ports/<uuid>"
        ]
    },
    "operand": "ABOVE",
    "windowSize": "PT15M",
    "warningThreshold": "10000000",
    "criticalThreshold": "15000000"
}'

Sample Response:

{
    "href": "https://api.equinix.com/fabric/v4/streams/128cfe7c-e24f-4b1b-8a4f-680cd650c46c/alertRules/28da40d8-09bf-49f2-a02d-af34210f275e",
    "uuid": "28da40d8-09bf-49f2-a02d-af34210f275e",
    "type": "METRIC_ALERT",
    "name": "<alert_rule_name>",
    "description": "<alert_rule_name>",
    "state": "ACTIVE",
    "enabled": true,
    "metricName": "equinix.fabric.port.bandwidth_tx.usage",
    "resourceSelector": {
        "include": [
            "*/ports/<uuid>"
        ]
    },
    "windowSize": "PT15M",
    "operand": "ABOVE",
    "warningThreshold": "43000000",
    "criticalThreshold": "45000000",
    "changeLog": {
        "createdBy": "testuser",
        "createdDateTime": "2025-02-04T23:17:54.323427936Z"
    }
}

Retrieving a Metric Alert Rule

To get a metric alert rule details, send a GET request to the /fabric/v4/streams/{streamId}/alertRules/{alertRuleId} endpoint.

Sample cURL Request:

curl -X 'GET' 'https://api.equinix.com/fabric/v4/streams/<streamId>/alertRules/<alertRuleId>' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <Bearer Token>'

Sample Response:

{
    "href": "https://api.equinix.com/fabric/v4/streams/128cfe7c-e24f-4b1b-8a4f-680cd650c46c/alertRules/28da40d8-09bf-49f2-a02d-af34210f275e",
    "uuid": "28da40d8-09bf-49f2-a02d-af34210f275e",
    "type": "METRIC_ALERT",
    "name": "<alert_rule_name>",
    "description": "<alert_rule_name>",
    "state": "ACTIVE",
    "enabled": true,
    "metricName": "equinix.fabric.port.bandwidth_tx.usage",
    "resourceSelector": {
        "include": [
            "*/ports/<uuid>"
        ]
    },
    "windowSize": "PT15M",
    "operand": "ABOVE",
    "warningThreshold": "43000000",
    "criticalThreshold": "45000000",
    "changeLog": {
        "createdBy": "testuser",
        "createdDateTime": "2025-02-04T23:17:54.323427936Z"
    }
}

Deleting a Metric Alert Rule

To delete a Metric Alert Rule, send a DELETE request to the /fabric/v4/streams/{streamId}/alertRules/{alertRuleId} endpoint.

Sample cURL Request:

curl -X DELETE 'https://api.equinix.com/fabric/v4/streams/<streamId>/alertRules/<alertRuleId>' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <Bearer Token>'

Sample Response:

{
    "href": "https://api.equinix.com/fabric/v4/streams/128cfe7c-e24f-4b1b-8a4f-680cd650c46c/alertRules/28da40d8-09bf-49f2-a02d-af34210f275e",
    "uuid": "28da40d8-09bf-49f2-a02d-af34210f275e",
    "type": "METRIC_ALERT",
    "name": "<alert_rule_name>",
    "description": "<alert_rule_name>",
    "state": "INACTIVE",
    "enabled": true,
    "metricName": "equinix.fabric.port.bandwidth_tx.usage",
    "resourceSelector": {
        "include": [
            "*/ports/<uuid>"
        ]
    },
    "windowSize": "PT15M",
    "operand": "ABOVE",
    "warningThreshold": "43000000",
    "criticalThreshold": "45000000",
    "changeLog": {
        "createdBy": "testuser",
        "createdDateTime": "2025-02-04T23:17:54.323427936Z"
    }
}