Re: [teas-3272bis-design-team] 答复: 3272biss and YANG

[Loa Andersson <[e-mail]>]

Xufeng,


On 2019-03-07 23:17, Xufeng Liu wrote:
> Hi Loa,
> 
> Agree that the "model driven networking" does bring a new perspective to 
> TE. 

OK - great, now we just need to figure out what it is and what effect it
will have on 3272bis

:)

/Loa

This is a new technology and methodology, which can be viewed as a
> competitive alternative to PCE/PCEP in a way. As Julien mentioned, 
> PCE/PCEP is also new since RFC3272. Both should be covered in the BIS.
> 
> Thanks,
> - Xufeng
> 
> On Thu, Mar 7, 2019 at 9:54 AM Loa Andersson <[e-mail] 
> <mailto:[e-mail]>> wrote:
> 
>     Daniele,
> 
>     Happy that you agree with me, though I did not really make a point  ;).
>     I only asked a simple question, in part based on 3272 itself.
>     I'm still looking for a response to the question.
> 
>     My reasoning was that RFC 3272 discusses (at some length) distributed
>     vs. centralized control plane, what I was thinking about was whether
>     model driven networking bring something new to the table from a TE
>     perspective.
> 
>     I got some responses, but nothing that helps me understand what is
>     going on.
> 
>     /Loa
> 
> 
> 
> 
>     On 2019-03-07 19:23, [e-mail]
>     <mailto:[e-mail]> wrote:
>      > Hi Daniele,
>      >
>      >> In hierarchical SDN all the traffic engineering is done with
>     Restconf
>      > + YANG.
>      >
>      > Not entirely true either. Ever read RFC 6805 or 7491? ;-b
>      >
>      > Julien
>      >
>      >
>      > On 07/03/2019 11:33, Daniele Ceccarelli wrote:
>      >> Well this is not entirely true.
>      >> There is plenty of YANG Models for traffic engineering.
>     TE-topology, TE-tunnel, TE-mapping...just to mention some of them.
>      >> In hierarchical SDN all the traffic engineering is done with
>     Restconf + YANG.
>      >> I agree with Loa, it would be probably good to have at least a
>     section dedicated to YANG.
>      >> BR
>      >>
>      >> Daniele
>      >>
>      >> -----Original Message-----
>      >> From: Teas-3272bis-design-team
>     <[e-mail]
>     <mailto:[e-mail]>> On Behalf Of
>     Aijun Wang
>      >> Sent: den 7 mars 2019 09:42
>      >>
>      >> Yang is not closely related to the TE solution. Should we pay
>     more attention to other emerged TE solutions for various environments?
>      >>
>      >>
>      >> Best Regards.
>      >>
>      >> Aijun Wang
>      >> Network R&D and Operation Support Department China Telecom
>     Corporation Limited Beijing Research Institute,Beijing, China.
>      >>
>      >> -----邮件原件-----
>      >> 发件人: Loa Andersson [mailto:[e-mail] <mailto:[e-mail]>]
>      >> 发送时间: 2019年3月7日 15:45
>      >>
>      >>
>      >> All,
>      >>
>      >> When 3272 was published, YANG modelling ws not over the horizon,
>     is there anything we need to say in 3272bis about YANG?
>      >>
>      >> /Loa
>      >>
>      >
>      >
>      >
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>     -- 
> 
> 
>     Loa Andersson                        email: [e-mail] <mailto:[e-mail]>
>     Senior MPLS Expert
>     Bronze Dragon Consulting             phone: [phone]
> 
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Loa Andersson                        email: [e-mail]
Senior MPLS Expert
Bronze Dragon Consulting             phone: [phone]