If a loop occurs, you can set port priority so that the spanning tree can select the port with the highest priority to forward data.

1. The port is enabled by default on the STP Port Configuration page.
   Figure 1. Port Priority
2. Configure the Port Priority.

   Port Priority

   • The lower the number is, the higher the priority is, the more probably the port becomes the root port.

   • The range is from 0 to 240, in increments of 16; the default is 128. Valid values are 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, and 240.

   Note:

   If the priority of the port is the same, spanning tree uses the port ID to select a port as the root port.

3. Click Save.