Running the sweep utility

You can use the sweep utility to clear the ARP cache, restart the FRR (Free Range Routing) process, and clear the table of NAT sessions on the CPE device.

Restarting the FRR process and clearing the NAT session table may cause traffic transmission to stop for a few seconds.

To run the sweep utility:

1. In the menu, go to the SD-WAN → CPE section.

   A table of CPE devices is displayed.

2. Click the CPE device on which you want to run the sweep utility.

   The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Configuration tab is selected, which displays general information about the CPE device. This tab also displays the table of Out-of-band management tasks being performed by the orchestrator.

3. Select the Utilities → Sweep tab.

   The sweep utility settings are displayed.

4. If you want to clear the ARP cache:
   1. Under Clear ARP-cache on interface, select the previously created network interface on which you want to clear the ARP cache. If you want to clear the ARP cache on all network interfaces, select All.
   2. Click Run.

   The ARP cache is cleared on the CPE device.

5. If you want to restart the FRR process, under Restart FRR (routing) process, click Run.

   The FRR process is restarted on the CPE device.

6. If you want to clear the NAT session table, under Clear NAT sessions table, click Run. You can configure NAT on a CPE device using a firewall.

   The NAT session table is cleared on the CPE device.