It is not working properly in one case, of load balancing among physical 
interfaces having a single prefix, all are attached to the same physical 
link, and reaching a single first-hop router.

The feature itself, of installing (/removing) multiple routing entries of 
varying
first-hop to the same destination, and having traffic load balance among
the installed routes work fine.

--Qing


> -----Original Message-----
> From: owner-freebsd-...@freebsd.org [mailto:owner-freebsd-
> n...@freebsd.org] On Behalf Of Sean Bruno
> Sent: Thursday, May 17, 2012 10:45 AM
> To: Eugene M. Zheganin
> Cc: freebsd-net@freebsd.org
> Subject: Re: ECMP and RADIX_MPATH
> 
> On Thu, 2012-05-17 at 01:27 -0700, Eugene M. Zheganin wrote:
> > The problem is that this topic lacks the documentation like totally.
> >  From the commit comments I understand that with RADIX_MPATH I can
> > use
> > more than one route towards the destination, but I really cannot find
> > anywhere the answer to the question 'will some form of balancing,
> > per-flow or per-packet take place'.
> 
> It appears that RADIX_MPATH is currently not working properly.  See
> this
> months mail threads [stable-9] where we discussed it.
> 
> http://lists.freebsd.org/pipermail/freebsd-net/2012-May/032331.html
> 
> sean
> 
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