The following demo has been done in the Industrial Advisory Board retreat at the BSAC, UC Berkeley on March 2013.
The Demo consists on a ping using the IPv6 network across the Atlantic see from Barcelona in Spain to UC Berkeley in California. The ping reaches a laptop where a telosb is connected with IPv6 address 2001:xxxx:00b9, the ping is downstream routed to the end destination three hops away in the multihop mesh network built by OpenWSN. As long as the ping is running, a jammer is introduced to the network, the jammer is using channel 20 and transmitting at full bandwidth continuously. The demo shows the benefits of channel hopping as the network continues transmitting the ping even a channel is being collapsed.
The second part shows how the jammer is introduced to the network.