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Date:      Thu, 10 Sep 2009 09:07:15 -0700
From:      Randy Bush <randy@psg.com>
To:        Claudio Jeker <cjeker@diehard.n-r-g.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: forwarding when two rip defaults
Message-ID:  <m2fxaurdfw.wl%randy@psg.com>
In-Reply-To: <20090910145626.GE23661@diehard.n-r-g.com>
References:  <m21vmfs7c0.wl%randy@psg.com> <m2ljkmrhvz.wl%randy@psg.com> <20090910145626.GE23661@diehard.n-r-g.com>

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>>>> say i run routed and receive rip default from two routers, on the same
>>>> local ether.  what is the forwarding?  i presume it's not smart enough
>>>> to balance flows.  i hope not alternating packets.  clue, please?
>>> Unless you have RADIX_MPATH in your kernel (with a recent FreeBSD, ie:
>>> 8.0) it'll choose one at random
>> aha!  that was the clue.  docs are a bit thin, still looking.  but thank
>> you.
> I don't want to disrupt the party but I seriously doubt that routed
> supports multipath routing. Routed's radix code is unable to handle
> multipath routes.

maybe i am confused.  but my momma told me that routing != forwarding.

i.e. routed will receive two default routes and i hope would install
them in the fib, where RADIX_MPATH forwarding would take over.  am i
wrong about what routed will do?  will it choose only one to install in
the fib?

randy



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