In my setup i have a 3com 4800g router that I setup to send sflow v4 flows to
my nfdump/nfsen server. I tested the server with software implemented flow
sensor(netflow v9) using softflowd and that works great. I did this to test the
setup was working now when I enable sflow on my router it does not seem to
process any of the flow data coming in from the router. I verified with a
packet dump that the packets are coming throught to the server. But in my
daemon and message log on the server when I restart nfdump daemon I get this in
my logs. Is this an unknown issue? I also want to mention that the ports that i
enabled sflow capture on have vlan traffic flowing throught them. I also
checked the firewall on the server is letting packets throught to the defined
port and address that nfsen is using.
Apr 19 07:56:17 nfsen-hvs sfcapd[29864]: Ident: '3com-router' Flows: 0,
Packets: 0, Bytes: 0, Sequence Errors: 0, Bad Packets: 0
Apr 19 07:56:17 nfsen-hvs sfcapd[29864]: Total ignored packets: 0
Apr 19 07:56:17 nfsen-hvs sfcapd[29864]: Updating statinfo in directory
'/var/log/netflow/live/3com-router'
Apr 19 07:56:17 nfsen-hvs sfcapd[29864]: Terminating sfcapd.
Apr 19 07:56:19 nfsen-hvs sfcapd: Add extension: 2 byte input/output interface
index
Apr 19 07:56:19 nfsen-hvs sfcapd: Add extension: 4 byte input/output interface
index
Apr 19 07:56:19 nfsen-hvs sfcapd: Add extension: 2 byte src/dst AS number
Apr 19 07:56:19 nfsen-hvs sfcapd: Add extension: 4 byte src/dst AS number
Apr 19 07:56:19 nfsen-hvs sfcapd[4882]: Standard setsockopt, SO_RCVBUF is
112640 Requested length is 200000 bytes
Apr 19 07:56:19 nfsen-hvs sfcapd[4882]: System set setsockopt, SO_RCVBUF to
262142 bytes
Apr 19 07:56:19 nfsen-hvs sfcapd[4884]: Startup.
nfsend[28791]: segfault at 65c ip 0018b26a sp bfbe2c60 error 4 in
libperl.so[101000+161000]
nfsend[28805]: segfault at 65c ip 0018b26a sp bfbe2c60 error 4 in
libperl.so[101000+161000]
nfsend[28954]: segfault at 65c ip 0018b26a sp bfbe2c60 error 4 in
libperl.so[101000+161000]
nfsend[29339]: segfault at 65c ip 0018b26a sp bfbe2ad0 error 4 in
libperl.so[101000+161000]
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