Hi WG, When considering adoption, it's important to take into account the following drafts as well.
Draft #1 link：https://www.ietf.org/archive/id/draft-wang-lsr-prefix-unreachable-annoucement-12.txt Draft #2 link：https://www.ietf.org/archive/id/draft-ppsenak-lsr-igp-ureach-prefix-announce-04.txt Reasons are as follows: 1. The two drafts mentioned above are similar in nature. The draft #1 covers more scenarios than the draft #2 as mentioned by Zhibo Hu mail. Therefore, a more in-depth discussion and technical comparison should take place before any adoption decision is made. 2. The Draft #1 utilizes the existing mechanisms [RFC7794] and [RFC9084] to indicate reachability by checking whether the originator information is NULL. On the other hand, the draft #2 introduces a new flag to indicate reachability. From an implementation perspective, it would be easier to develop using the existing RFC mechanisms. 3. The Draft #1 covers more scenarios and can address the aggregation issues of multiple ABRs. However, the Draft #2 explicitly states in Chapter 6 that it does not support this scenario. 4. If we remove the additional scenarios covered in Draft #1 and compare the two drafts, the only remaining difference is the method of indicating unreachable prefixes - either through a UPA flag or using the originator TLV. Thanks, Changwang -----Original Message----- From: Lsr [mailto:[email protected]] On Behalf Of Acee Lindem Sent: Thursday, August 24, 2023 3:58 AM To: lsr Cc: [email protected] Subject: [Lsr] Working Group Adoption of "IGP Unreachable Prefix Announcement" - draft-ppsenak-lsr-igp-unreach-prefix-announce-04 LSR Working Group, This begins the working group adoption call for “IGP Unreachable Prefix Announcement” - draft-ppsenak-lsr-igp-unreach-prefix-announce-04. Please indicate your support or objection on this list prior to September 7th, 2023. Thanks, Acee _______________________________________________ Lsr mailing list [email protected] https://www.ietf.org/mailman/listinfo/lsr ------------------------------------------------------------------------------------------------------------------------------------- 本邮件及其附件含有新华三集团的保密信息，仅限于发送给上面地址中列出 的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、 或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本 邮件！ This e-mail and its attachments contain confidential information from New H3C, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! _______________________________________________ Lsr mailing list [email protected] https://www.ietf.org/mailman/listinfo/lsr
