By default, ENA polls for port utilization and status details every 5 minutes. However, you can specify ports on which ENA should poll for utilization and/or status every 1 minute. This is through fast utilization polling and fast status polling.
Fast port polling can be useful in the following cases:
- when polling key ports.
- when troubleshooting problematic ports.
Fast polling is disabled by default, and you can enable it on a port-by-port basis.
Features of fast port polling:
- Fast port polling is separately implemented for port utilization and port status. Therefore, e.g., you can enable fast utilization polling on a port without enabling fast status polling, or vice versa.
- By default, fast polling is set at a frequency of 1 minute.
- By default, ENA restricts fast polling to 100 ports having fast utilization polling and 100 ports have fast status polling.
To enable/disable fast polling on a port:
- Navigate to the port on which you want to enable fast polling, either on a dashboard or through the Explorer tree.
- Right click the port to open its Context Menu.
- Click Polling, and then either Fast Status Polling or Fast Utilization Polling.
- Click Enable or Disable as appropriate. The Fast Status and/or Fast Util columns in the Port Summary dashlet table will be updated accordingly.
To find fast polling ports:
There are 3 ways by which you can find or identify fast polling ports:
- Navigating to the Key Info dashlet of a port's Summary dashboard, which tells you if the port is fast status polling or fast utilization polling.
- Navigating to the Ports (Port Summary) dashlet on a device's Ports dashboard, which tells you if any of the ports are fast status polling or fast utilization polling.
- Via the Search functionality:
- Change the Type to Ports.
- Click Advanced Settings. Scroll down to the Fast utilization polling and Fast status polling fields, and select Enable as appropriate. Click Done to return to the main Search form.
- Click Begin. The table will populate with the