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It has often been noted that SNMP is subject to missing data, and that its measurements contain errors. However, very little work has been aimed at assessing the magnitude of these errors. This paper develops a simple, easily applicable technique for measuring SNMP errors, and uses it in a case study to assess errors in a common SNMP collection tool. The results indicate that most link\u2010load measurement errors are relatively small, but the distribution has a heavy\u2010tail, and that a few measurement errors can be as large as the measurements themselves. The approach also allows us to go some way towards explaining the cause of the errors.<\/jats:p>","DOI":"10.1155\/2010\/812979","type":"journal-article","created":{"date-parts":[[2010,5,17]],"date-time":"2010-05-17T14:33:06Z","timestamp":1274106786000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["A Case Study of the Accuracy of SNMP Measurements"],"prefix":"10.1155","volume":"2010","author":[{"given":"Matthew","family":"Roughan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,5,17]]},"reference":[{"key":"e_1_2_8_1_2","doi-asserted-by":"crossref","unstructured":"PaxsonV. vern@icir.org Strategies for sound internet measurement Proceedings of the ACM SIGCOMM Internet Measurement Conference (IMC \u203204) October 2004 Taormina Italy 263\u2013271 2-s2.0-0033295259.","DOI":"10.1145\/1028788.1028824"},{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/MIC.2004.34"},{"key":"e_1_2_8_3_2","doi-asserted-by":"crossref","unstructured":"SommersJ. jsommers@cs.wisc.edu BarfordP. andpb@cs.wisc.edu WillingerW. walter@research.att.com A proposed framework for calibration of available bandwidth estimation tools Proceedings of the 11th IEEE Symposium on Computers and Communications (ISCC \u203206) June 2006 Cagliari Italy 709\u2013718 2-s2.0-0042025177 https:\/\/doi.org\/10.1109\/ISCC.2006.15.","DOI":"10.1109\/ISCC.2006.15"},{"key":"e_1_2_8_4_2","unstructured":"Abilene\/Internet2 http:\/\/www.internet2.edu\/."},{"key":"e_1_2_8_5_2","doi-asserted-by":"crossref","unstructured":"ZhangY. 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