Date: Tue, 14 Feb 2017 10:23:37 -0800 From: Scott Larson <stl@wiredrive.com> To: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@freebsd.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: How to enable ECMP flow based forwarding ? Message-ID: <CAFt8naFUyJzk-eTd0Qq-3JemfJgU6CKHkGEN4ach02wbnPRvOw@mail.gmail.com> In-Reply-To: <CA%2Bq%2BTcqXv1HryUaBW1LBFVcyDMwDAMs0Ujp8jBRD96zO_63OQw@mail.gmail.com> References: <CA%2Bq%2BTcqXv1HryUaBW1LBFVcyDMwDAMs0Ujp8jBRD96zO_63OQw@mail.gmail.com>
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I'm successfully using ECMP on 11.0-RELEASE firewalls, but in my case
they're also using OSPF with a pair of upstream MX480 routers via Quagga.
BIRD would be nicer to work with but the last time I checked it wasn't
playing nice with ECMP on FreeBSD. Regardless, if OSPF is an option you can
pursue that will definitely work.
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On Mon, Feb 13, 2017 at 4:23 PM, Olivier Cochard-Labb=C3=A9 <olivier@freebs=
d.org>
wrote:
> Hi,
>
> I'm testing FreeBSD ECMP behavior by adding "options RADIX_MPATH" to my
> kernel configuration (11-stable).
> Now I can configure two identical routes toward 2 different next-hop: Fir=
st
> step achieved :-)
> But it uses only the first entry and never uses the second one.
>
> I've tried to shutdown the first next-hop router (then no more arp-reply
> from this next-hop): But the ECMP FreeBSD router sticks to its first rout=
e
> entry and never try the second entry :-(
>
> Is there something else to enable (like RSS?) for having a real ECMP flow
> based router ?
>
> Thanks,
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