Hi Peter,
Thank you for the comments. Time for the presentation is very limited. Glad to receive your comments here. I agree that flex-algo is much easier to deploy and manage than MT, which make it a popular tool now. But I think using algorithm-specific link metric will not cause the loss of this property. For example, flex-algo 128 and flex-algo 129 need to use different metrics of the same metric-type for the same link. Solution A: Use algorithm-based metric for algorithm 128 and algorithm 129 Solution B: Use metric-type-based metric for metric-type 128 and metric-type 129 (according to Shraddha's suggestion, draft-ietf-lsr-flex-algo-bw-con) Both in the two solutions, extra link metric tlvs need to be advertised, and they are stored locally, no matter algorithm-based or metric-type-based. During path computation, the difference is that, solution A needs to check if there is algorithm-based metric for the link. If yes, algorithm-based metric is preferred. If no, common metric is used. IMHO, even if the algorithm-specific link metric is used, flex-algo is still light weight, compared with MT. Thanks, Mengxiao Chen -----Original Message----- From: Lsr [mailto:lsr-boun...@ietf.org] On Behalf Of Peter Psenak Sent: Thursday, March 24, 2022 11:09 PM To: lsr@ietf.org Subject: [Lsr] draft-lin-lsr-flex-algo-metric-00 Hi, as I was unable to make my comments during the presentation, let me put them here: When we started with the flex-algo work, there has been a lengthy discussion on why not to use the multi-topology (MT) instead. We always wanted flex-algo to be light weight and as a result easy to deploy and manage. I believe that was one of the reasons why flex-algo has been successfully deployed. We do not want to loose that very property of the flex-algo architecture. What you are proposing is what MT was invented for and we do not want flex-algo to become a new version of MT. You have two ways to solve your problem: a) use MT b) if you want to solve your problem with flex-algo, please use what already exists in flex-algo. Please look at draft-ietf-lsr-flex-algo-bw-con as others have pointed out. thanks, Peter _______________________________________________ Lsr mailing list Lsr@ietf.org<mailto:Lsr@ietf.org> 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!
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