From: Stephen Hemminger <shemminger@vyatta.com>
To: Neil Horman <nhorman@tuxdriver.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net
Subject: Re: [RFC PATCH 1/4] net: port mirroring: add tracepoints to appropriate network paths
Date: Tue, 15 Dec 2009 09:22:22 -0800 [thread overview]
Message-ID: <20091215092222.1cbbee0f@nehalam> (raw)
In-Reply-To: <20091215170249.GB20644@hmsreliant.think-freely.org>
On Tue, 15 Dec 2009 12:02:49 -0500
Neil Horman <nhorman@tuxdriver.com> wrote:
> On Tue, Dec 15, 2009 at 08:44:24AM -0800, Stephen Hemminger wrote:
> > On Tue, 15 Dec 2009 11:36:04 -0500
> > Neil Horman <nhorman@tuxdriver.com> wrote:
> >
> > > Add net_dev_xmit & net_dev_receive tracepoints
> > >
> > > Add tracepoints at the end of the network stack xmit path and the start of the
> > > stack receive path. Among other uses, these tracepoints can be used to tap the
> > > raw input and output streams for any given network device for the purposes of
> > > mirroring that traffic to other ports.
> > >
> >
> > There already is a mirroring solution but people don't know how to use it.
> > Using mirred on ingress qdisc does that.
> >
> I wish that had been easier to find. That only appears to mirror inbound frames
> though, what about outbound frames? can you attach mirred to an outbound qdisc?
It works for outbound frames as well.
next prev parent reply other threads:[~2009-12-15 17:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-15 16:29 [RFC PATCH 0/4] net: Add port mirroring support to the kernel Neil Horman
2009-12-15 16:36 ` [RFC PATCH 1/4] net: port mirroring: add tracepoints to appropriate network paths Neil Horman
2009-12-15 16:44 ` Stephen Hemminger
2009-12-15 17:02 ` Neil Horman
2009-12-15 17:22 ` Stephen Hemminger [this message]
2009-12-15 17:49 ` Neil Horman
2009-12-15 17:54 ` Stephen Hemminger
2009-12-15 20:41 ` Neil Horman
2009-12-15 21:50 ` Stephen Hemminger
2009-12-16 12:00 ` Neil Horman
2009-12-15 16:37 ` [RFC PATCH 2/4] net: port mirroring: add port mirroring core code to kernel Neil Horman
2009-12-15 16:38 ` [RFC PATCH 3/4] net: port mirroring: add config options to enable port mirroring Neil Horman
2009-12-15 16:54 ` [RFC PATCH 4/4] net: port mirroring: Add maintainer Neil Horman
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