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Date:      Tue, 15 May 2012 18:14:33 -0500
From:      "David DeSimone" <fox@verio.net>
To:        <freebsd-net@freebsd.org>
Subject:   Re: [stable-9]
Message-ID:  <20120515231432.GH28776@verio.net>
In-Reply-To: <B143A8975061C446AD5E29742C531723CA33D1@pwsvl-excmbx-05.internal.cacheflow.com>
References:  <1337105271.3434.8.camel@powernoodle-l7.corp.yahoo.com> <B143A8975061C446AD5E29742C531723CA33D1@pwsvl-excmbx-05.internal.cacheflow.com>

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Li, Qing <qing.li@bluecoat.com> wrote:
>
> The route selection is based on a hash function of source-ip and
> destination-ip when RADIX_MPATH is enabled. You do not need to perform
> specific actions, other than perhaps setting varying weights on each
> entry as an option. So depends on the traffic destination the chosen
> route may always be the same one.

These comments suggest that there are multiple routes to be selected
from.  However, this output:

> Internet:
> Destination        Gateway            Flags    Refs      Use  Netif
> Expire
> default            <redacted>         UGS         0 33320033   igb0
> XXX.XXX.XXX.0/25    link#1             U           0        0   igb0 =>
> XXX.XXX.XXX.0/25    link#2             U           0        0   igb1

suggests that there is only ONE default route, pointing to ONE
interface, igb0.  Without an extra default route that is also pointing
to igb1, I can't see how the system woudl ever forward traffic out igb1,
unless it was directed to the local /25.

-- 
David DeSimone == Network Admin == fox@verio.net
  "I don't like spinach, and I'm glad I don't, because if I
   liked it I'd eat it, and I just hate it." -- Clarence Darrow


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