nProbe 사용법

nprobe -i <Interface Name> -g <PID file> -n <collector IP:Port> -G -V 5

-G : 데몬 모드로 실행
-V : --flow-version : 5 (netflow v5) , 9(netflow v9), 10(ipfix)

binary 패키지

 http://www.nmon.net/packages/ubuntu/14.04/

성능 분석

Traffic Generator : pktgen-DPDK (10Gbps)

root@cnode50-m:/tmp# nfdump -r /tmp/nfcapd.201411191056

Date flow start          Duration Proto      Src IP Addr:Port          Dst IP Addr:Port   Packets    Bytes Flows

2014-11-19 10:55:15.896   111.248 TCP        192.168.0.1:1234  ->      192.168.1.1:5678    93.0 M    4.3 G     1

2014-11-19 10:57:07.144   111.320 TCP        192.168.0.1:1234  ->      192.168.1.1:5678    93.0 M    4.3 G     1

2014-11-19 10:58:58.464   111.664 TCP        192.168.0.1:1234  ->      192.168.1.1:5678    93.0 M    4.3 G     1

Summary: total flows: 3, total bytes: 12.8 G, total packets: 279.0 M, avg bps: 307.2 M, avg pps: 834786, avg bpp: 46

Time window: 2014-11-19 10:55:15 - 2014-11-19 11:00:50

93,000,000 packets * 46 bytes * 8 bits / 111 seconds = 308,324,324

즉 초당 308 Mbits 를 처리함