On 8/12/15, 10:30 AM, Robert Shearman wrote:
On 11/08/15 22:45, Roopa Prabhu wrote:
From: Roopa Prabhu <ro...@cumulusnetworks.com>
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
(https://marc.info/?l=linux-api&m=143457208315573&w=2). 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
patches.
If that does not work for you and if you want me to merge with this
series that works too.
Thanks!,
Roopa
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