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Date:	Wed, 12 Aug 2015 19:07:18 -0700
From:	roopa <>
To:	Robert Shearman <>
Subject: Re: [PATCH net-next 0/3] mpls: multipath support

On 8/12/15, 10:30 AM, Robert Shearman wrote:
> On 11/08/15 22:45, Roopa Prabhu wrote:
>> From: Roopa Prabhu <>
>> This patch series adds multipath support to mpls routes.
>> resembles ipv4 multipath support. The multipath route nexthop
>> selection algorithm is the same code as in ipv4 fib code.
>> I understand that the multipath algorithm in ipv4 is undergoing
>> some changes and will move mpls to similar algo if applicable once
>> those get merged.
> Is it necessary for the mpls patch selection algorithm to closely 
> resemble the ipv4 one? 
No, It is not necessary. I picked that because it was already there. And 
I see that ipv4 is also getting some new multipath algorithms
( I wanted to move 
to the new RT_MP infra if that becomes applicable in the future.

> A flow based algorithm would be much better for traffic that is 
> sensitive to re-ordering (e.g TCP, L2VPN) and IMHO we should do this 
> from the start for MPLS.
> I've also been looking at implementing this functionality. I've got a 
> set of patches for this that I can send if you'd like.

Definitely. But, It seems like you can also submit incremental patches 
to mine. You can replace the current algo with a hash based with your 
If that does not work for you and if you want me to merge with this 
series that works too.


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