root@suricata:/var/log# nfsen start
Starting nfcapd:(router2)
Error( Port: 6345 ): a collector with pid[23106] is already running
 (router1)
Error( Port: 6344 ): a collector with pid[23111] is already running

Starting nfsendPANIC nfsend dies: RRD version '1.5001' not yet supported!

RRD version '1.5001' not yet supported!

.
root@suricata:/var/log#