[spring] 答复: 答复: Progressing draft-dong-spring-sr-for-enhanced-vpn to enable SR with resource management

Hi, Joel:

There are some descriptions in
https://datatracker.ietf.org/doc/html/draft-dong-spring-sr-for-enhanced-vpn-
07#section-5 for the aim of "isolation". Maybe it is needed defined first in
the document.
And the document also say that "Also the number of such enhanced services
can be larger than the number of traffic classes with DiffServ QoS." in
"Introduction" section, then "diffserv treatment together with PCE" can't
meet the requirements in VPN clients granularity.

And after reviewing the document, I think it is ready for the WG adoption
for further discussion.

Best Regards.

Aijun Wang
China Telecom

-----邮件原件-----
发件人: spring-bounces@ietf.org [mailto:spring-bounces@ietf.org] 代表 Joel
M. Halpern
发送时间: 2020年5月21日 11:01
收件人: qinfengwei; 'Dongjie (Jimmy)'; 'SPRING WG'
抄送: draft-dong-spring-sr-for-enhanced-vpn@ietf.org
主题: Re: [spring] 答复: Progressing draft-dong-spring-sr-for-enhanced-vpn
to enable SR with resource management

This email (and the underlying document) asserts a need for "isolation" 
without defining isolation, and without recognizing that the service needs
can be met by existing packet technologies.

The document also asserts that resource management requires packet based
resource reservation.  We have significant evidence that diffserv treatment
coupled with central (PCE or equivalent) resource management can address
these needs.

At the very least, the discussion of isolation should be removed from the
document before it is evaluated for adoption.

Yours,
Joel

On 5/20/2020 10:47 PM, qinfengwei wrote:
> Hi all,
> 
> At present, 5G applications have been widely developed, recently, many 
> enterprises require dedicated network resources to achieve isolation 
> from other services in the network, such as southern power grid, Migu 
> live video and Tencent cloud games. This document provides the 
> mechanism to enhance SR with resource identification capability. This 
> is an important feature to meet different customer’s requirement in 
> our network. Thus we believe it is a generic and useful enhancement to 
> SR, and hope it could move forward quickly in the WG.
> 
> Thanks,
> 
> Fengwei Qin
> 
> *发件人:*spring [mailto:spring-bounces@ietf.org] *代表 *Dongjie (Jimmy)
> *发送时间:*2020年5月19日18:38
> *收件人:*SPRING WG
> *抄送:*draft-dong-spring-sr-for-enhanced-vpn@ietf.org
> *主题:*[spring] Progressing draft-dong-spring-sr-for-enhanced-vpn to 
> enable SR with resource management
> 
> Hi all,
> 
> The latest version of draft-dong-spring-sr-for-enhanced-vpn was 
> uploaded in March, which describes a generic enhancement to SR to 
> support resource representation and identification, by introducing the 
> resource semantics to SR SIDs. With such enhancement, SR could be used 
> not only for explicit path steering, but could also be used to build 
> resource guaranteed paths or virtual networks. Such SR based resource 
> guaranteed paths or virtual networks can be used as the underlay to 
> support different VPN services. The mechanism introduced in this 
> document is complementary to the existing SR functionalities, and 
> helps to complete the tool set of segment routing.
> 
> Based on the discussion on mail list and the presentations on previous 
> IETF meetings, this draft has been revised several times, all the 
> comments received so far has been resolved and reflected in the 
> current version. To move forward, the authors would like to know if 
> there are further comments on this document, and people’s opinion on 
> whether it is in the right direction.
> 
> Comments and feedbacks are welcome.
> 
> Best regards,
> 
> Jie
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 

_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring