Allow sending upstream netflow to multiple servers

[i3149]

Now you can use ktranslate like samplicator. Tested with:

Process 1:
ktranslate -nf.source=auto -format netflow -sinks net -net_server 127.0.0.1:9090,127.0.0.1:9091 -max_flows_per_message=1

Process 2:
ktranslate -nf.source auto -nf.port 9090 -listen off 

Process 3:
ktranslate -nf.source auto -nf.port 9091 -listen off 

Process 2 and 3 get the same flows. Use a comma split -net_server to specify multiple destinations.

-max_flows_per_message=1 is needed when sending udp packets because otherwise it is dumb and tries to cram too much into 1 udp packet.

[briandav22]

Looks Good!

[briandav22]

looks good!