[ndnSIM] How to fail a node

[Junior DONGO]

Dear ndnSim users,

Is there a way to simulate a node failure during simulation? Something 
like "kill the node" or deactivate the node.

Also using "ndn::LinkControlHelper::FailLink", I observe something strange.

In my scenario, I have something like this:

node1:consumer

node2:producer

node4:producer

node3: intermediate node


node1-----------node2

|                        |

|                        |

|                        |

node3---------node4

I use "ndn::LinkControlHelper::FailLink" to fail the link between node1 
and node2, the interests from node1 timeout, which means that node1 
tries to send the interests to node2 and not to node4 through node3.

Any idea about this behavior? Is it related to the strategy(best route 
is used)?

Thanks,

Junior