The IESG has approved the following document: - 'Packet Reordering Metric for IPPM ' <draft-ietf-ippm-reordering-13.txt> as a Proposed Standard This document is the product of the IP Performance Metrics Working Group. The IESG contact persons are Lars Eggert and Magnus Westerlund. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-ippm-reordering-13.txt Technical Summary This memo defines metrics to evaluate if a network has maintained packet order on a packet-by-packet basis. It provides motivations for the new metrics and discusses the measurement issues, including the context information required for all metrics. The memo first defines a reordered singleton, and then uses it as the basis for sample metrics to quantify the extent of reordering in several useful dimensions for network characterization or receiver design. Additional metrics quantify the frequency of reordering and the distance between separate occurrences. It then defines a metric oriented toward assessing reordering effects on TCP. Working Group Summary The concepts behind the draft have been discussed since 2001, resulting in a number of individual submission drafts which were merged into this draft. This draft has been discussed for several years, it has been stable for about a year now. Reviews were done by a number of key people in the group. Protocol Quality PROTO shepherd: Henk Uijterwaal (henk.uijterwaal@ripe.net) Lars Eggert reviewed this spec for the IESG. The main comment during IETF LC was a completely revised IANA considerations section. Version -13 has addressed the concerns raised during the IESG review. Note to RFC Editor Need to replace "RFC xxxx" with the number this RFC receives upon publication. Section 2, first paragraph: replace reference to RFC2640 to RFC2460 OLD: Ordered arrival is a property found in packets that transit their path, where the packet sequence number increases with each new arrival and there are no backward steps. The Internet Protocol [RFC791] [RFC2640] has no mechanisms to assure either packet NEW: Ordered arrival is a property found in packets that transit their path, where the packet sequence number increases with each new arrival and there are no backward steps. The Internet Protocol [RFC791] [RFC2460] has no mechanisms to assure either packet ^^^^^^^ _______________________________________________ IETF-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/ietf-announce
