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Date:      Thu, 28 Jan 2010 10:29:47 -0800
From:      "Li, Qing" <qing.li@bluecoat.com>
To:        "Balaji G" <balajig81@gmail.com>, <freebsd-net@freebsd.org>
Subject:   RE: ECMP support in FreeBSD 7.2 and 8.0 +
Message-ID:  <B583FBF374231F4A89607B4D08578A430672ACFB@bcs-mail03.internal.cacheflow.com>
In-Reply-To: <6dd1343e1001280356u77e4d1f3wfe668da2970e62e7@mail.gmail.com>
References:  <6dd1343e1001280356u77e4d1f3wfe668da2970e62e7@mail.gmail.com>

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ECMP support is only available in FreeBSD 8.0.

I have not received any request to merge that feature back 
into 7.x branch.

In FreeBSD 8.0, currently there is no association between interface 
link state and the route availability RTF_UP flag, so ECMP cannot
be used as a failover mechanism effectively.

I have a working patch to address that deficiency and will commit
the patch once I find more time to do additional unit testing on it.

--Qing


> -----Original Message-----
> From: owner-freebsd-net@freebsd.org [mailto:owner-freebsd-
> net@freebsd.org] On Behalf Of Balaji G
> Sent: Thursday, January 28, 2010 3:56 AM
> To: freebsd-net@freebsd.org
> Subject: ECMP support in FreeBSD 7.2 and 8.0 +
> 
> Hi Everybody
> 
> I would like to know whether ECMP feature is supported in FreeBSD 7.2.
> I was able to infer that ECMP is supported in FreeBSD 8.0 because i
> was able to look into the SVN checkin logs and also found out that in
> FreeBSD 8.0 the ECMP code was wrapped under RADIX_MPATH macro.
> 
> I was not able to get any results when i did a search for RADIX_MPATH
> in 7.2. I would like to know whether ECMP code exists in 7.2 and
> whether it provides the same functionality as given in FreeBSD 8.0
> 
> Thanks for your time.
> 
> Cheers,
>   - Balaji
> _______________________________________________
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