netmap pipes (Re: vnet + netmap: how is it possible?)

[Ermal Luçi]

On Tue, Feb 11, 2014 at 12:06 PM, Dennis Yusupoff <dyr at smartspb.net> wrote:

> Luigi, it will be really brilliant if you would be kind to show more
> examples of use netmap with pipes, netgraph modules (for example,
> ng_netflow) and so on, because many of network engineers use FreeBSD
> without as strong programming skills as you have. At least I'm the one
> of they. ;)
>
> BTW, Ermal, are the any chances to see you patches for work dummynet in
> the PF?
>
>
I will try to push them soon as they are validated for newer pf in HEAD/10.*


> 10.02.2014 21:28, Luigi Rizzo пишет:
> > On Mon, Feb 10, 2014 at 12:44 AM, Ermal Luçi <eri at freebsd.org> wrote:
> >
> >> Hello Luigi,
> >>
> >> On Mon, Feb 10, 2014 at 2:14 AM, Luigi Rizzo <rizzo at iet.unipi.it>
> wrote:
> >>
> >>> On Sun, Feb 9, 2014 at 4:21 PM, Raimundo Santos <raitech at gmail.com>
> >>> wrote:
> >>>
> >>>> Hello list!
> >>>>
> >>>> I am willing to test an idea: modularize network functions using vnet
> >>>> jails. One vnet jail do the NAT, other do balancing, another one the
> >>>> traffic shapping, and so on.
> >>>>
> >>> For these low level packet processing functions, jails are overkill.
> >>>
> >>> The upcoming version of netmap has "netmap pipes",
> >>> pairs of netmap ports connected back to back and sharing memory,
> >>> with blocking I/O through select/poll/epoll (and we are looking
> >>> at supporting kqueue).
> >>>
> >>> You can use netmap pipes to build a graph of processes (nodes)
> >>> which apply the desired transformations to your traffic.
> >>> Nodes can be anything that speaks netmap (or libpcap),
> >>> including your custom C code, Click instances, or whatever
> >>> you like.
> >>>
> >>>
> >> Is this netgraph overlayed over netmap or is something rewritten from
> >> scratch?
> >>
> > nothing to do with netgraph, this is "simply" an
> > extension of the netmap module. Also note this
> > only provides the interconnection, you still have
> > to build the processing modules.
> >
> > cheers
> > luigi
> >
> > _______________________________________________
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> >
>
> --
> Best regards,
> Dennis Yusupoff,
> network engineer of
> Smart-Telecom ISP
> Russia, Saint-Petersburg
>
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>



-- 
Ermal