Hi Andrew, check out the Milestones section for SPRING in Datatracker.

Darren

> On Nov 20, 2019, at 12:31 AM, Andrew Alston <[email protected]> 
> wrote:
> 
> Just to add to this because it’s the one thing that I am still confused about.
> 
> We are referring to finishing the work on SRv6 - what does this mean?
> 
> SRH is with the editors - meaning - its pretty much completed (and it came 
> out of 6man not spring)
> Network programming and CRH are entirely different things - they have 
> entirely different functions and entirely different use cases.
> Yes - there is micro-sid and CRH - but you cannot make one hostage to the 
> other - and if you are - on the basis of what is proposed here, surely first 
> come first serve would apply - look at the publication dates.
> 
> So - what do we mean finish the work - what exactly are we finishing?  I view 
> this as the equivalent of saying - lets finish the work on BGP - yet at the 
> same time - how many flow spec extensions are out there (in fact there are 
> even things in pipeline while flowspec v2 is coming).  You have a ton of 
> extensions for different things - no one halts the progress.
> 
> So - What exactly are we "finishing" and on what premise are we holding other 
> things hostage on these grounds?
> 
> Andrew
> 
> 
> On 19/11/2019, 01:00, "Sander Steffann" <[email protected]> wrote:
> 
>    Hi,
> 
>> Hi Ron, to follow up on what was said at the mic.
>> 
>> The current community analysis, comparing existing solutions (SRv6 and 
>> SR-MPLS for IPv6) with SRm6, had the following result:
>> - a lot of differences (Architecture, Dataplane, Controlplane) and hence 
>> engineering cost
> 
>    A different architecture isn't necessarily a bad thing. I think the 
> architecture is sound, and I prefer a strong architecture that needs some 
> engineering work to a weaker architecture that is easier to implement any 
> day. Build for the future etc.
> 
>> - scale, performance and complexity drawbacks
> 
>    Not my field of expertise, so skipping this one.
> 
>> - no genuine advantage
> 
>    These are the advantages that I see:
>    - fits cleanly within the IPv6 standard
>    - packet overhead comparable to SR-MPLS
>    - but doesn't need every box on the path to cooperate (I have participated 
> in a test running SRm6 over the open internet: no tunnels, just worked)
> 
>    I think SRm6 strikes the right balance between clean architecture, 
> overhead and complexity. I my opinion this working group should pursue work 
> on SRm6 for these reasons. I understand the need for finishing the work on 
> SRv6, but at the same time lets work on new developments like SRm6, work on 
> interoperability, and give operators the choice to run the protocol they 
> prefer.
> 
>    There is no need for competition here (and if there is, please take it 
> outside the IETF), only the need for cooperation and coexistence.
> 
>    Cheers,
>    Sander
> 
> 
> 

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