Chapter 2 Advanced Routing for FortiOS 5.0 : Border Gateway Protocol (BGP) : Dual-homed BGP example : Testing this configuration
  
Testing this configuration
With the dual-homed BGP configuration in place, you should be able to send and receive traffic, send and receive routes, and not have any routing loops. Testing the networks will confirm things are working as expected.
In general for routing you need to look at the routing table on different routers to see what routes are being installed. You also need to sniff packets to see how traffic is being routed in real time. These two sources of information will normally tell you what you need to know.
Testing of this example’s network configuration should be completed in two parts:
Testing network connectivity
Verifying the FortiGate unit’s routing tables
Verifying traffic routing
Verifying the dual-homed side of the configuration