Re: [spring] FW: New Version Notification for draft-cheng-spring-distribute-srv6-locator-by-dhcp-00.txt

Hi Aihua, 

Thanks for your comments.

The allocation process of SRv6 Locator in this draft follows the DHCPv6 prefix allocation process.

Compared to IPv6 prefix allocation process, the allocation process of SRv6 prefix has some new requirements.  

For example, while assigning the Locator prefix to the client, it is also necessary to inform the length of Block, Func, and Args of Locator in the DHCPv6 message.

At the IETF-115, The Chairs and experts from DHC WG suggested that we define a new Identity Association for SRv6 Locator (IA_SRV6_LOCATOR) option specifically for assigning SRv6 Locators to distinguish it from the existing Identity Association for Prefix Delegation (IA_PD) option.  We modified the draft accordingly.

B.R.

Weiqiang Cheng

发件人: spring [mailto:spring-bounces@ietf.org] 代表 liu.aihua@zte.com.cn
发送时间: 2023年5月24日 22:09
收件人: chengweiqiang@chinamobile.com
抄送: spring@ietf.org; spring-chairs@ietf.org; linchangwang.04414@h3c.com; hanruibo@chinamobile.com; qiuyuanxiang@h3c.com
主题: Re: [spring] FW: New Version Notification for draft-cheng-spring-distribute-srv6-locator-by-dhcp-00.txt

Hi Weiqiang,

This draft proposed an interesting solution for dynamic SRv6 deployment, especially with centralized management of SRv6 locator prefix.  As the draft descripted, it is valuable to simplify the CPEs to join in the SRv6 domain. I wonder whether if this could be done by current existed IPv6 prefix allocation process.

Regards,

Aihua

Original

From: WeiqiangCheng <chengweiqiang@chinamobile.com>

To: 'spring' <spring@ietf.org>;

Cc: spring-chairs@ietf.org <spring-chairs@ietf.org>;'Changwang Lin' <linchangwang.04414@h3c.com>;'Ruibo Han' <hanruibo@chinamobile.com>;'Yuanxiang Qiu' <qiuyuanxiang@h3c.com>;

Date: 2023年05月23日 18:49

Subject: [spring] FW: New Version Notification for draft-cheng-spring-distribute-srv6-locator-by-dhcp-00.txt

Hi, All

According to the discussion results of the DHC WG and SPRING WG chairs after IETF-116, [draft-cheng-dhc-distribute-srv6-locator-by-dhcp] will be progressed in SPRING WG.
Now we have uploaded the replacement draft [draft-cheng-spring-distribute-srv6-locator-by-dhcp].
Document Link:  https://datatracker.ietf.org/doc/draft-cheng-spring-distribute-srv6-locator-by-dhcp/

This proposal follows the IPv6 Prefix allocation process of DHCPv6 and proposes a method of dynamically assigning SRv6 Locator to endpoints through DHCPv6.
It defines an Identity Association for SRv6 Locator (IA_SRV6_LOCATOR) Option. 
With this option, Locator Prefix and Block-len, Func-len, Args-len can be dynamically distributed for SRv6 endpoints in SRv6 network.
Based on this method, centralized management of SRv6 Locator prefix resources can be achieved, and network deployment can also be effectively simplified.

The draft has been presented in DHC WG at IETF115 and 116, as well in SPRING WG at IETF116. The feedback were positive.

Sincerely ask for your feedback.

Best Regards，

Weiqiang Cheng

-----邮件原件-----
发件人: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] 
发送时间: 2023年5月18日 17:48
收件人: Changwang Lin; Ruibo Han; Weiqiang Cheng; Yuanxiang Qiu
主题: New Version Notification for draft-cheng-spring-distribute-srv6-locator-by-dhcp-00.txt

A new version of I-D, draft-cheng-spring-distribute-srv6-locator-by-dhcp-00.txt
has been successfully submitted by Weiqiang Cheng and posted to the
IETF repository.

Name:        draft-cheng-spring-distribute-srv6-locator-by-dhcp
Revision:    00
Title:        Distribute SRv6 Locator by DHCP
Document date:    2023-05-18
Group:        Individual Submission
Pages:        15
URL:            https://www.ietf.org/archive/id/draft-cheng-spring-distribute-srv6-locator-by-dhcp-00.txt
Status:         https://datatracker.ietf.org/doc/draft-cheng-spring-distribute-srv6-locator-by-dhcp/
Htmlized:       https://datatracker.ietf.org/doc/html/draft-cheng-spring-distribute-srv6-locator-by-dhcp

Abstract:
   In SRv6 network, locators need to be assigned to each SRv6 Endpoint,
   and segments are created based on locators. This document describes
   the method of assigning locators to SRv6 Endpoints through DHCPv6.

The IETF Secretariat

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