netdev - Re: [PATCH net-next v3 0/4] net: ipv6: Improve user experience with multipath routes

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Date:   Mon, 30 Jan 2017 17:02:36 -0700
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     Roopa Prabhu <roopa@...ulusnetworks.com>, netdev@...r.kernel.org,
        nicolas.dichtel@...nd.com
Subject: Re: [PATCH net-next v3 0/4] net: ipv6: Improve user experience with
 multipath routes

On 1/30/17 4:56 PM, Stephen Hemminger wrote:
>>
>> As I mentioned quagga does not work with IPv6 multipath as is today. 
>>
>> I just looked at bird. IPv6 mpath support was added in Sept. 2016. It specifically hard codes not accepting RTA_MULTIPATH for IPv6 which I think is an odd choice and clearly coding to quirks as opposed to rtnetlink design. Having never looked at bird code I was able to get it working in < 1 hour. I will contact the patch author about that limitation. That said, the bird implementation needs work when you look at the add/delete/replace/append permutations, so the current code has its problems as well.
> 
> Also what if quagga was fixed but  had to work with existing enterprise distros?
> 

I am testing the patches; it will work on both.