dragonflybsd router

[k simon]

Hi, Sepherosa,
     Thanks for your reply.  I'm glad to know Multi FIB probably will be supported in the next release cycle, did you have some plan about support flow cache, npf or smp friendly pf, and per-cpu statistics, netflow/ipfix etc. As a router box, we need a platform with "integrated solution" . Maybe write a roadmap is a good start.  I would like to test dfly BSD with real traffic when the next version released.

Best Regards,
Simon


在 2013-8-20，下午6:43， Sepherosa Ziehau 写道：

> 
> 
> 
> On Tue, Aug 20, 2013 at 4:37 PM, k simon <chio1990 at gmail.com> wrote:
> 
> 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
> 
> Multiple routing table is not supported yet, it probably will be added in the next release cycle, if I or others could find enough time.  Netgraph is under BGL, which means it is bad for performance.  ipfw is lockless MPSAFE, pf is still under one token (which also causes performance issue).  Basic BIRD functionality should just work (no policy routing, since it requires multiple routing table support).
> 
> Best Regards,
> sephe

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