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Checking references for intended status: Proposed Standard ---------------------------------------------------------------------------- (See RFCs 3967 and 4897 for information about using normative references to lower-maturity documents in RFCs) ** Downref: Normative reference to an Experimental draft: draft-ietf-ippm-multipoint-alt-mark (ref. 'I-D.ietf-ippm-multipoint-alt-mark') ** Downref: Normative reference to an Informational RFC: RFC 7799 ** Obsolete normative reference: RFC 8321 (Obsoleted by RFC 9341) == Outdated reference: A later version (-17) exists of draft-ietf-6man-ipv6-alt-mark-02 Summary: 3 errors (**), 0 flaws (~~), 2 warnings (==), 1 comment (--). Run idnits with the --verbose option for more detailed information about the items above. -------------------------------------------------------------------------------- 2 IPPM T. Zhou, Ed. 3 Internet-Draft G. Fioccola 4 Intended status: Standards Track Huawei 5 Expires: July 22, 2021 S. Lee 6 LG U+ 7 M. Cociglio 8 Telecom Italia 9 W. Li 10 Huawei 11 January 18, 2021 13 Enhanced Alternate Marking Method 14 draft-zhou-ippm-enhanced-alternate-marking-06 16 Abstract 18 This document extends the IPv6 alternate marking option to provide 19 the enhanced capabilities. 21 Requirements Language 23 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 24 "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 25 document are to be interpreted as described in RFC 2119 [RFC2119]. 27 Status of This Memo 29 This Internet-Draft is submitted in full conformance with the 30 provisions of BCP 78 and BCP 79. 32 Internet-Drafts are working documents of the Internet Engineering 33 Task Force (IETF). Note that other groups may also distribute 34 working documents as Internet-Drafts. The list of current Internet- 35 Drafts is at https://datatracker.ietf.org/drafts/current/. 37 Internet-Drafts are draft documents valid for a maximum of six months 38 and may be updated, replaced, or obsoleted by other documents at any 39 time. It is inappropriate to use Internet-Drafts as reference 40 material or to cite them other than as "work in progress." 42 This Internet-Draft will expire on July 22, 2021. 44 Copyright Notice 46 Copyright (c) 2021 IETF Trust and the persons identified as the 47 document authors. All rights reserved. 49 This document is subject to BCP 78 and the IETF Trust's Legal 50 Provisions Relating to IETF Documents 51 (https://trustee.ietf.org/license-info) in effect on the date of 52 publication of this document. Please review these documents 53 carefully, as they describe your rights and restrictions with respect 54 to this document. Code Components extracted from this document must 55 include Simplified BSD License text as described in Section 4.e of 56 the Trust Legal Provisions and are provided without warranty as 57 described in the Simplified BSD License. 59 Table of Contents 61 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 62 2. Data Fields Format . . . . . . . . . . . . . . . . . . . . . 2 63 3. Enhanced Alternate Marking capabilities . . . . . . . . . . . 3 64 4. Security Considerations . . . . . . . . . . . . . . . . . . . 4 65 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 66 6. References . . . . . . . . . . . . . . . . . . . . . . . . . 4 67 6.1. Normative References . . . . . . . . . . . . . . . . . . 4 68 6.2. Informative References . . . . . . . . . . . . . . . . . 4 69 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4 71 1. Introduction 73 The Alternate Marking [RFC8321] and Multipoint Alternate Marking 74 [I-D.ietf-ippm-multipoint-alt-mark] define the Alternate Marking 75 technique that is an hybrid performance measurement method, per 76 [RFC7799] classification of measurement methods. This method is 77 based on marking consecutive batches of packets and it can be used to 78 measure packet loss, latency, and jitter on live traffic. 80 AltMark Option [I-D.ietf-6man-ipv6-alt-mark] applies the Alternate 81 Marking Method for IPv6 protocol, and defines Extension Header Option 82 to encode Alternate Marking Method for both Hop-by-Hop Options Header 83 and Destination Options Header. 85 While the AltMark Option implement the basic alternate marking 86 method, this document defines the extended data fields for the 87 AltMark Option and provides the enhanced capabilities. 89 It is worth mentioning that the enhanced capabilities are intended 90 for further use and are optional. 92 2. Data Fields Format 94 The following figure shows the data fields format for enhanced 95 alternate marking. This data is expected to be encapsulated to 96 specific transports. 98 0 1 2 3 99 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 100 +---------------------------------------+-+-+-+-----------------+ 101 | FlowMonID |L|D|R|R| NextHeader | 102 +---------------------------------------+-+-+-+-----------------+ 103 | FlowMonID Ext |R|R|F|R| Len | R | 104 +---------------------------------------+-+-+-+-----------------+ 105 | MetaInfo | R | 106 +---------------------------------------------------------------+ 108 where: 110 o FlowMonID - Flow Monitoring Identification is the same as defined 111 in AltMark Option [I-D.ietf-6man-ipv6-alt-mark]. 113 o L and D - Loss Flag and Delay Flag are the same as defined in 114 AltMark Option [I-D.ietf-6man-ipv6-alt-mark]. 116 o NextHeader - Identify whether to carry the extended data fields. 118 o FlowMonID Ext - 20 bits unsigned integer. This used to extend the 119 FlowMonID to reduce the conflict when random allocation is applied 121 o R - Reserved for further use. This bit MUST be set to zero. 123 o F - Flow direction identification. F = 1, indicate the flow 124 direction is forward. 126 o Len - Length. It indicates the length of extension headers. 128 o MetaInfo - A 16 bits Bitmap to indicate more meta data attached 129 for the enhanced function. 131 3. Enhanced Alternate Marking capabilities 133 The extended data fields presented in the previous section can be 134 used for several uses. Some possible applications can be: 136 1. shortest marking periods of single marking method for thicker 137 packet loss measurements. 139 2. more dense delay measurements than double marking method (down to 140 each packet). 142 3. increase the entropy of flow monitoring identifier by extending 143 the size of FlowMonID. 145 4. and so on. 147 4. Security Considerations 149 TBD 151 5. IANA Considerations 153 This document has no request to IANA. 155 6. References 157 6.1. Normative References 159 [I-D.ietf-ippm-multipoint-alt-mark] 160 Fioccola, G., Cociglio, M., Sapio, A., and R. Sisto, 161 "Multipoint Alternate Marking method for passive and 162 hybrid performance monitoring", draft-ietf-ippm- 163 multipoint-alt-mark-09 (work in progress), March 2020. 165 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate 166 Requirement Levels", BCP 14, RFC 2119, 167 DOI 10.17487/RFC2119, March 1997, 168 . 170 [RFC7799] Morton, A., "Active and Passive Metrics and Methods (with 171 Hybrid Types In-Between)", RFC 7799, DOI 10.17487/RFC7799, 172 May 2016, . 174 [RFC8321] Fioccola, G., Ed., Capello, A., Cociglio, M., Castaldelli, 175 L., Chen, M., Zheng, L., Mirsky, G., and T. Mizrahi, 176 "Alternate-Marking Method for Passive and Hybrid 177 Performance Monitoring", RFC 8321, DOI 10.17487/RFC8321, 178 January 2018, . 180 6.2. Informative References 182 [I-D.ietf-6man-ipv6-alt-mark] 183 Fioccola, G., Zhou, T., Cociglio, M., Qin, F., and R. 184 Pang, "IPv6 Application of the Alternate Marking Method", 185 draft-ietf-6man-ipv6-alt-mark-02 (work in progress), 186 October 2020. 188 Authors' Addresses 189 Tianran Zhou 190 Huawei 191 156 Beiqing Rd. 192 Beijing 100095 193 China 195 Email: zhoutianran@huawei.com 197 Giuseppe Fioccola 198 Huawei 199 Riesstrasse, 25 200 Munich 80992 201 Germany 203 Email: giuseppe.fioccola@huawei.com 205 Shinyoung Lee 206 LG U+ 207 71, Magokjungang 8-ro, Gangseo-gu 208 Seoul 209 Republic of Korea 211 Email: leesy@lguplus.co.kr 213 Mauro Cociglio 214 Telecom Italia 215 Via Reiss Romoli, 274 216 Torino 10148 217 Italy 219 Email: mauro.cociglio@telecomitalia.it 221 Weidong Li 222 Huawei 223 156 Beiqing Rd. 224 Beijing 100095 225 China 227 Email: poly.li@huawei.com