netdev - Re: [PATCH net-next 0/8] Basic MPLS support

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Message-ID: <54EEC41D.1010800@cumulusnetworks.com>
Date:	Wed, 25 Feb 2015 22:58:37 -0800
From:	roopa <roopa@...ulusnetworks.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Stephen Hemminger <stephen@...workplumber.org>,
	santiago@...reenet.org
Subject: Re: [PATCH net-next 0/8] Basic MPLS support

On 2/25/15, 9:09 AM, Eric W. Biederman wrote:
> While trying to figure out what MPLS is and why MPLS support is not in
> the kernel on a lark I sat down and wrote an MPLS implemenation, so I
> could answer those questions for myself.
>
>  From what I can tell the short answer is MPLS is trivial-simple and the
> we don't have an in-kernel implementation because no one has sat down
> and done the work to have a good mergable implementation.

>
> MPLS has it's good sides and it's bad sides but at the end of the day
> MPLS has users, and having an in-kernel implementation should help us
> understand MPLS and focus our conversations dealing with MPLS and
> VRFs.

very much agree.
>
> Having MPLS in our toolkit as the entire world begins playing with
> overlay networks aka ``network virtualization'' to support VM and
> container migration seems appropriate as MPLS is the historical solution
> to this problem.
>
> Constructive criticism about the netlink interface is especially
> appreciated.  Hopefully we can have at least one protocol in the kernel
> where the netlink interface doesn't have nasty corner case.
>
> As for linux users.  The conversations I had at netdev01 this sounds
> like a case of if I build it people will use the code.
ack again.

Thanks eric!.
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