Hi,list:

    I have some linux router/NAT box, each can serve 500-600Kpps traffic. Last 
week, I observed the ddos attack, it report ipt_netflow sendbuffer overlimit 
and cpu usage high. So I took a look at BSD family. I've tested freebsd a bit, 
it have trouble with polling and NIC‘s multi queues, and it have high context 
switch.
    I've searched some posts about dfly's ifpoll  and ifq etc. I really 
appreciate it. but I can't determine dfly BSD support multi RIB, ng_netflow,  
smp friendly pf, flow  etc. And the BIRD route suite can support policy routing 
and worked fine on the dfly BSD?
    Maybe someone can figure out some solution to suit my requirements,thanks.


best regards
Simon

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