[netflow-tools] unable to export flows
djm at mindrot.org
Thu Mar 29 15:04:48 EST 2007
On Tue, 27 Mar 2007, memic wrote:
> no, the export is working, but i get those errors from time to time..
> Cristian KLEIN wrote:
> > memic wrote:
> >> hi,
> >> i get those strange messages in my syslog
> >> Mar 26 16:37:24 bgp softflowd: Unable to export flows
> >> Mar 26 16:37:28 bgp last message repeated 3 times
> >> Mar 26 16:39:28 bgp last message repeated 4 times
> >> ideas where they come from?
> > Is it possible that your firewall disallows outgoing UDP for your flows?
> > Try enabling verbosity.
This message can occur in a couple of cases, the two that spring to mind are:
1. UDP socket send buffer is full. softflowd may benefit from an increase
of the send buffer, similar to the change I made to flowd:
2. ICMP unreachable errors from the export target host or intervening
gateways -- there isn't much softflowd can do in this case.
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