[netflow-tools] softflowd dropping packets in high speed network traffic.
vsdssd at gmail.com
Thu Sep 4 21:40:18 EST 2014
I have two questions about softflowd.
1. Is there any multithread supported version of softflowd?
2. I have installed softflowd (Revision: 80aac3b2fec3). In case of
high speed network traffic, it starts dropping packets.
How will it handle high speed network traffic?
I have tried it and the output is given below:
softflowd -i eth3 -n 192.168.50.2:9995 -v 10 -d -t maxlife=300 -A milli
[root at varun]# softflowctl statistics
softflowd: Accumulated statistics since 2014-09-04T05:08:58 UTC:
Number of active flows: 65536
Packets processed: 181485841
Ignored packets: 38 (38 non-IP, 0 too short)
Flows expired: 65536 (0 forced)
Flows exported: 65536 in 16913 packets (0 failures)
Packets received by libpcap: 182171059
Packets dropped by libpcap: 6848371
Packets dropped by interface: 0
Expired flow statistics: minimum average maximum
Flow bytes: 52368 117995 118422
Flow packets: 1218 2744 2754
Duration: 300.03s 300.21s 300.25s
Expired flow reasons:
tcp = 0 tcp.rst = 0 tcp.fin = 0
udp = 0 icmp = 0 general = 0
maxlife = 65536
over 2 GiB = 0
maxflows = 0
flushed = 0
Per-protocol statistics: Octets Packets Avg Life Max Life
tcp (6): 7732952536 179836099 300.21s 300.25s
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