Lab 3: Sending data to node from standard input
The villas pipe tool can be used to send and receive sample to / from a node.
The following command sends a single sample to node udp_node1.
# start tcpdump to capture traffic in background
tcpdump -i lo udp port 12001
# send 10 values to udp_node1
villas signal -v 3 -r 10 -l 10 mixed | villas pipe lab3.conf udp_node1
# stop tcpdump
kill %1
We can verify this by using Wireshark or tcpdump:
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