--- 1/draft-ietf-roll-rpl-observations-04.txt 2020-11-30 06:13:14.861573079 -0800 +++ 2/draft-ietf-roll-rpl-observations-05.txt 2020-11-30 06:13:14.889573418 -0800 @@ -1,19 +1,21 @@ ROLL R. Jadhav, Ed. -Internet-Draft R. Sahoo -Intended status: Standards Track Y. Wu -Expires: November 22, 2020 Huawei - May 21, 2020 +Internet-Draft +Intended status: Standards Track R. Sahoo +Expires: June 3, 2021 Juniper + Y. Wu + Huawei + November 30, 2020 RPL Observations - draft-ietf-roll-rpl-observations-04 + draft-ietf-roll-rpl-observations-05 Abstract This document describes RPL protocol design issues, various observations and possible consequences of the design and implementation choices. Status of This Memo This Internet-Draft is submitted in full conformance with the @@ -22,21 +24,21 @@ Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." - This Internet-Draft will expire on November 22, 2020. + This Internet-Draft will expire on June 3, 2021. Copyright Notice Copyright (c) 2020 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents @@ -89,22 +91,22 @@ Option? . . . . . . . . . . . . . . . . . . . . . . . . 17 15.3. Deliberations . . . . . . . . . . . . . . . . . . . . . 17 16. Backward Compatibility issues with RPL Options . . . . . . . 17 17. RPL under-specification . . . . . . . . . . . . . . . . . . . 17 18. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 18 19. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18 20. Security Considerations . . . . . . . . . . . . . . . . . . . 18 21. References . . . . . . . . . . . . . . . . . . . . . . . . . 18 21.1. Normative References . . . . . . . . . . . . . . . . . . 18 21.2. Informative References . . . . . . . . . . . . . . . . . 19 - Appendix A. Additional Stuff . . . . . . . . . . . . . . . . . . 20 - Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 20 + Appendix A. Additional Stuff . . . . . . . . . . . . . . . . . . 19 + Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 19 1. Motivation The primary motivation for this draft is to enlist different issues with RPL operation and invoke a discussion within the working group. This draft by itself is not intended for RFC tracks but as a WG discussion track. This draft may in turn result in other work items taken up by the WG which may improvise on the issues mentioned herewith. @@ -307,21 +310,21 @@ ancestor. 5. Interpreting Trickle Timer Trickle algorithm defines a mechanism to reset the timer. Trickle timer reset is unlike regular periodic timers wherein the timer is simply reset to start again. Reset of trickle timer implies resetting the trickle back to Imin and starting with a new interval as mentioned in Section 4.2 of [RFC6206]. -|----|--------|----------------|--------------------------------| . . . . . . + |----|--------|----------------|------------------------------| . . . . Imin I2 I3 I4 I5 Figure 4: Trickle Timer Operation The above figure shows an example of trickle intervals. An interval is double that of the previous interval size. Section 4.2. of [RFC6206] states that, "If Trickle hears a transmission that is "inconsistent" and I is greater than Imin, it resets the Trickle timer. To reset the timer, @@ -840,43 +843,26 @@ "The Trickle Algorithm", RFC 6206, DOI 10.17487/RFC6206, March 2011, . [RFC6550] Winter, T., Ed., Thubert, P., Ed., Brandt, A., Hui, J., Kelsey, R., Levis, P., Pister, K., Struik, R., Vasseur, JP., and R. Alexander, "RPL: IPv6 Routing Protocol for Low-Power and Lossy Networks", RFC 6550, DOI 10.17487/RFC6550, March 2012, . - [RFC6551] Vasseur, JP., Ed., Kim, M., Ed., Pister, K., Dejean, N., - and D. Barthel, "Routing Metrics Used for Path Calculation - in Low-Power and Lossy Networks", RFC 6551, - DOI 10.17487/RFC6551, March 2012, - . - - [RFC6552] Thubert, P., Ed., "Objective Function Zero for the Routing - Protocol for Low-Power and Lossy Networks (RPL)", - RFC 6552, DOI 10.17487/RFC6552, March 2012, - . - [RFC6775] Shelby, Z., Ed., Chakrabarti, S., Nordmark, E., and C. Bormann, "Neighbor Discovery Optimization for IPv6 over Low-Power Wireless Personal Area Networks (6LoWPANs)", RFC 6775, DOI 10.17487/RFC6775, November 2012, . - [RFC6997] Goyal, M., Ed., Baccelli, E., Philipp, M., Brandt, A., and - J. Martocci, "Reactive Discovery of Point-to-Point Routes - in Low-Power and Lossy Networks", RFC 6997, - DOI 10.17487/RFC6997, August 2013, - . - 21.2. Informative References [I-D.clausen-lln-rpl-experiences] Clausen, T., Verdiere, A., Yi, J., Herberg, U., and Y. Igarashi, "Observations on RPL: IPv6 Routing Protocol for Low power and Lossy Networks", draft-clausen-lln-rpl- experiences-11 (work in progress), March 2018. [I-D.ietf-intarea-adhoc-wireless-com] Baccelli, E. and C. Perkins, "Multi-hop Ad Hoc Wireless @@ -892,35 +878,31 @@ [Perlman83] Perlman, R., "Fault-Tolerant Broadcast of Routing Information", North-Holland Computer Networks, Vol.7, December 1983. Appendix A. Additional Stuff Authors' Addresses Rahul Arvind Jadhav (editor) - Huawei - Kundalahalli Village, Whitefield, + Marathahalli Bangalore, Karnataka 560037 India - Phone: +91-080-49160700 Email: rahul.ietf@gmail.com - Rabi Narayan Sahoo - Huawei - Kundalahalli Village, Whitefield, + Juniper + Whitefield Bangalore, Karnataka 560037 India - Phone: +91-080-49160700 - Email: rabinarayans@huawei.com + Email: rabinarayans0828@gmail.com Yuefeng Wu Huawei No.101, Software Avenue, Yuhuatai District, Nanjing, Jiangsu 210012 China Phone: +86-15251896569 Email: wuyuefeng@huawei.com