Hi, all: Here is the update to draft-wu-alto-te-metrics http://tools.ietf.org/html/draft-wu-alto-te-metrics-02 The diff is: http://www.ietf.org/rfcdiff?url2=draft-wu-alto-te-metrics-02 The main changes are 1. Remove the Cost Mode part as these metrics are intended to be used in various cost modes. 2. Move Collection method part to new section(i.e., section 2) since they are common part for these metrics. 3. Other editorial changes, e.g., remove duplicated part in each new defined metrics.
There is one remaining issue in this draft, i.e., do we need to specify the measurement interval for each metrics In details in this draft. In the current draft, we assume using a fixed, small measurement interval. However this may be not enough for ALTO setting. we may need to support more complicated use case,e.g., bandwidth calendaring. In the last IETF meeting, we gave an example to show how bandwidth calendaring look like. We may need to specify the more semantics for calendaring attribute, e.g., measurement period. We may need to extend bandwidth calendaring to other metrics, e.g., delay. After a few discussion, authors feels we may need to split calendaring part from this draft and put it into the separate draft. Let us know what do you think about this? Regards! -Qin Calendaring and multicost metrics should be defined in a separate document. Hence, we have a more modular approach. What do you think? - We, as as the metrics are intended to be used in various cost modes. - It looks to me that the Collection Method part is common. Hence, we can move them to be common. -----邮件原件----- 发件人: I-D-Announce [mailto:i-d-announce-boun...@ietf.org] 代表 internet-dra...@ietf.org 发送时间: 2014年6月28日 10:57 收件人: i-d-annou...@ietf.org 主题: I-D Action: draft-wu-alto-te-metrics-02.txt A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : ALTO Traffic Engineering Cost Metrics Authors : Qin Wu Y. Richard Yang Young Lee Dhruv Dhody Sabine Randriamasy Filename : draft-wu-alto-te-metrics-02.txt Pages : 26 Date : 2014-06-27 Abstract: Cost Metric is a basic concept in Application-Layer Traffic Optimization (ALTO). It is used in both the Cost Map Service and the Endpoint Cost Service. Future extensions to ALTO may also use Cost Metric. Different applications may benefit from different Cost Metrics. For example, a Resource Consumer may prefer Resource Providers that have low delay to the Resource Consumer. However the base ALTO protocol [ALTO] has defined only a single cost metric, i.e., the generic "routingcost" metric (Sec. 14.2 of ALTO base specification [ALTO]). In this document, we define eleven Cost Metrics, derived from OSPF-TE and ISIS-TE, to measure network delay, jitter, packet loss, hop count, and bandwidth. The metrics defined in this document provide a relatively comprehensive set of Cost Metrics for ALTO focusing on traffic engineering (TE). Additional Cost Metrics such as financial cost metrics may be defined in other documents. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-wu-alto-te-metrics/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-wu-alto-te-metrics-02 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-wu-alto-te-metrics-02 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ I-D-Announce mailing list i-d-annou...@ietf.org https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt _______________________________________________ alto mailing list alto@ietf.org https://www.ietf.org/mailman/listinfo/alto
