How to set port link speeds
You can set the link speed of ports to better accommodate connected devices. Doing so is particularly useful when a 10 Gb optical SFP+ needs to interface with a 1 Gb optical device, for example.
To set the port link speed of a network or tool port:
1. Starting in the dashboard, click Ports.
2. Right-click a port.
3. In the Set Speed submenu, click a speed setting.
The port is operating at the chosen speed.
 
The entire four port block now operates at the chosen speed.