Hi, Thanks for the comments. In the afternoon presentation I mainly introduce the path computation method based on link loss.
Here are the consideration of how packet loss on a link is measured: 1. The packet loss rate is measured based on the TWAMP or TWAMP LIGHT. It doesn’t depend on the real traffic. 2. The TWAMP session can be deployed to measure the packet loss rate before the flexible algorithm is configured. Consequently the packet loss caused by real traffic tests can be prevented. 3. The measured packet loss rate can be suppressed to prevent frequent traffic switching caused by link loss changes. Regards, Yifan Wang. 发件人: Lsr <lsr-boun...@ietf.org> 代表 Alexander Vainshtein 发送时间: 2023年11月6日 18:15 收件人: draft-wang-lsr-flex-algo-link-loss.auth...@ietf.org 抄送: lsr@ietf.org; Nitsan Dolev <nitsan.do...@rbbn.com> 主题: [Lsr] My comment on https://datatracker.ietf.org/doc/html/draft-wang-lsr-flex-algo-link-loss-00 Hi, Just repeating my comment at the mike: The draft does not explain how packet loss on a link is measured. If this measurement is based on real traffic, excluding the link from the topology for certain flexible algorithms may result in the packet loss going down and the link becoming eligible for traffic again. For this scheme to work, link loss measurement should be done in a way that does not depend on the amount of customer traffic crossing the link. I also think that, even with such a scheme, some kind of hysteresis mechanism is required to prevent link being frequently excluded and admitted back if the packet loss rate fluctuates around the threshold level, My 2c, Sasha Disclaimer This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.
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