Chapter 10 Install and System Administration for FortiOS 5.0 : VLANs : VLANs in transparent mode : Test the configuration
  
Test the configuration
Use diagnostic network commands such as traceroute (tracert) and ping to test traffic routed through the network.
See Also
Testing traffic from VLAN_100 to VLAN_200
Configure the Cisco switch and router
Example of VLANs in transparent mode