On Wed, May 20, 2015 at 06:03:25PM +0200, Nicolas Dichtel wrote:
> Hi Jafar and Andrew,
> 
> I think that both development are complementary. The point that bother me is 
> to
> call this 'vrf-lite', it seems to be more policy based routing. As you said, 
> we
> can easily imagine a scenario with netns + multiple routing table. Calling it
> vrf will confuse the user.
> With only multiple tables, you cannot assign the same address multiple times 
> for
> example. VRF is usally more complete.
> On netdev mailing list (linux networking kernel), several people already 
> report
> that, with multiple table, some corner case cannot be solved when they tried 
> to
> implement VRF.
> 
> Note also that there are develomement in the linux kernel to ease VRF usage 
> and
> scalability. For example, Eric Biederman has recently post a patch to lighten
> the size of a netns. I've also post some patches to be able to assign an id to
> peer netns and ease netlink management.

I agree.  VRF is NOT multiple routing tables with policies.  Network
namespaces match VRF requirements much better.

-- 
Len Sorensen

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