Tools that allow aggregating data results from many nodes at a time. It connects to several tcp connections and handle the received data.
IoT-LAB aggregation-tools, including all examples, code snippets and attached documentation is covered by the CeCILL v2.1 free software licence.
Aggregate all the serial links of an experiment and print it to stdout.
$ serial_aggregator [-i <exp_id>] [-l nodes_list|-l ...]
1395240359.168975;Aggregator started
1395240359.286712;m3-46; Type Enter to stop printing this help
1395240359.286853;m3-46;
1395240359.292523;m3-9;
1395240359.292675;m3-9;IoT-Lab Simple Demo program
1395240359.292820;m3-9;Type command
1395240359.293094;m3-9; h: print this help
1395240359.293241;m3-9; t: temperature measure
1395240359.293612;m3-9; l: luminosity measure
1395240359.293760;m3-9; s: send a radio packet
1395240359.294044;m3-9;
1395240359.294212;m3-9; Type Enter to stop printing this help
1395240359.294781;wsn430-37;
1395240359.294949;wsn430-37;Senslab Simple Demo program
1395240359.295098;wsn430-37;Type command
...
Standard input is parsed to allow sending messages to the nodes. It's read using 'readline' and so you get a shell-like feeling.
Parsing is done using the function extract_nodes_and_message(line) see the
docstring for all allowed values.
'' -> does not send anything to anyone, allows 'blanking' lines
' ' -> sends ' \n' to all nodes
'msg' -> sends 'msg\n' to all nodes
'm3,1-3+5;message' -> sends 'message\n' to nodes 'm3-[1, 2, 3, 5]'
'm3-1;message' -> sends 'message\n' to nodes 'm3-1'
'csv;message;with;semicolons' -> sends 'csv;message;with;semicolons' to all
nodes as 'csv;' is not a valid
node identifier
Aggregate all the gateways sniffer into a pcap formatted file.
The gateways sniffer generate 'ZEP' encapsulated data: https://www.wireshark.org/docs/dfref/z/zep.html
ZEP packets are saved in a pcap file encapsulated as a Ethernet-IP-UDP packet send to port 17754 http://wiki.wireshark.org/IEEE_802.15.4.
Basic usage from the ssh fronted
$ sniffer_aggregator [-i <exp_id>] [-l nodes_list|-l ...] <-o pcap_file>
# save current experiment output to a file
$ sniffer_aggregator -o radio_experiment.pcap
1420464895.805985;Aggregator started
Connecting to your computer wireshark using pipes
# Connect the output to your PC wireshark
you@yourpc $ ssh <user>@<site> 'sniffer_aggregator -o -' | wireshark -k -i -