Actions82
- Device Actions
- Access Points Actions
- Get All Access Points
- Get Access Point Details
- Get Top APs by Wireless Usage
- Get AP Throughput Trends
- Get AP CPU Utilization
- Get AP Memory Utilization
- Get AP Power Consumption
- Get AP Radio Details
- Get Radio Performance
- Get APs with Performance Issues
- Get AP Port Frame Trends
- Get All Radios
- Get Radio Channel Utilization
- Get Radio Channel Quality
- Get Radio Noise Floor
- Get Radio Transmission Info
- Get AP Port CRC Errors
- Get AP Port Collision Errors
- Get AP Radio Throughput Trend
- Get AP Port Throughput Trend
- Get AP Radios List
- Get AP Ports List
- Get All WLANs
- Get WLAN by Name
- Get AP WLANs List
- Get AP WLAN Throughput Trend
- Get AP Tunnels List
- Get AP Tunnel Details
- Get AP Tunnel Throughput Trend
- Get AP Tunnel Packet Loss Trend
- Get AP Tunnel Jitter Trend
- Get AP Tunnel Latency Trend
- Get AP Tunnel MOS Score Trend
- Get WLAN Throughput Trend
- Client Actions
- Site Actions
- Site Health Actions
- Gateway Actions
- List Gateways
- Gateway Details
- Gateway Cluster Leader Details
- Gateway Cluster VLAN Mismatch Summary
- Gateway Cluster Connectivity Graph
- Gateway VLAN Detail
- List Gateway Cluster Members
- Gateway Tunnel Detail
- List Gateway Wired Interfaces
- List Gateway Cluster Tunnels
- List Gateway VLANs
- List Gateway LAN Tunnels
- List Gateway WAN Interfaces
- Get Gateway CPU Utilization Trend
- Get Gateway Memory Utilization Trend
- Get Gateway LAN Tunnel Throughput Trend
- Get Gateway LAN Tunnel Status Trend
- Get Cluster Capacity Trend
- Get Cluster Member Capacity Trend
- Get Gateway Interface Throughput Trend
- Get Summary of Cluster Tunnel Health
- Get Summary of Cluster Tunnel Status
- Get Summary of Gateway Tunnel Health
- Get Gateway WAN Availability Trend
- Get Gateway VPN Availability Trend
- Get Gateway Port Frames Trend
- Get Gateway Port Frames Errors Trend
- Get Gateway Port Frames Packets Trend
- Get Gateway Tunnel Dropped Packets Trend
- List Gateway WAN Tunnels
- Gateway WAN Tunnel Detail
- Get Summary of Gateway WAN Tunnel Health
- Get Details of Gateway Uplink
- Get Gateway Uplink Throughput Trend
- Get Gateway WAN Compression Trends for Uplink
- List Gateway Uplink Probes
- List Gateway Uplink Performance Trends
- Get Gateway Uplink Modem Stats
- Get WAN Availability Trends of Gateway Uplink
- Get VPN Availability Trends of Gateway Uplink
Overview
This node interacts with the Aruba Central Next Gen API to retrieve monitoring data related to gateways. Specifically, the "Get Gateway CPU Utilization Trend" operation fetches historical CPU usage metrics for a specified gateway device identified by its serial number. This is useful for network administrators and IT professionals who want to monitor the performance and health of their gateway devices over time.
Typical use cases include:
- Tracking CPU load trends to anticipate potential overloads or failures.
- Integrating CPU utilization data into dashboards or alerting systems.
- Correlating CPU usage with other network events or performance metrics.
For example, an administrator could schedule this node to run periodically to collect CPU utilization data for a gateway and then trigger alerts if CPU usage exceeds certain thresholds.
Properties
| Name | Meaning |
|---|---|
| Debug Mode | Whether to enable detailed debug logs for troubleshooting. |
| Domain | API domain to interact with. Options: "Monitoring" (monitor devices, clients, and sites), "Configuration" (configure devices, groups, and profiles). For this operation, "Monitoring" is used. |
| Serial Number | The unique serial number identifying the gateway device whose CPU utilization trend is requested. |
| Time Range | Optional timestamp range for data retrieval. Consists of: - Start Time: ISO 8601 start timestamp. - End Time: ISO 8601 end timestamp. If omitted, defaults to the last 3 hours. |
Output
The node outputs JSON data containing the CPU utilization trend for the specified gateway over the requested time range. The structure typically includes timestamps and corresponding CPU usage percentages or metrics that represent CPU load over time.
If binary data were involved (e.g., files or images), it would be summarized here, but this operation returns only JSON-formatted monitoring data.
Dependencies
- Requires an active connection to the Aruba Central Next Gen API.
- Needs an API authentication token configured in n8n credentials (an OAuth2 or similar API key credential).
- Network access to Aruba Central services must be available from the n8n environment.
Troubleshooting
Common Issues:
- Invalid or missing serial number: Ensure the serial number corresponds exactly to a registered gateway device.
- Incorrect time range format: Use valid ISO 8601 date-time strings for start and end times.
- API authentication errors: Verify that the API credentials are correctly set up and have sufficient permissions.
- Network connectivity problems: Confirm that n8n can reach Aruba Central endpoints.
Error Messages:
- "Unknown error in node execution": Generic catch-all; check debug logs if enabled.
- Authentication failures: Usually indicate invalid or expired API tokens.
- Data not found or empty response: Could mean the gateway serial number is incorrect or no data exists for the given time range.
Enabling "Debug Mode" property helps provide detailed logs to diagnose issues.
Links and References
- Aruba Central Next Gen API Documentation (general reference): https://developer.arubanetworks.com/aruba-central
- ISO 8601 Date-Time Format: https://en.wikipedia.org/wiki/ISO_8601
- n8n Documentation on Credentials: https://docs.n8n.io/credentials/overview/