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Current solutions based on the ETSI standard NFV architectural framework are complex and require the knowledge of a myriad of details of the underlying infrastructure. This work proposes a VNF manager (VNFM) specification that supports different platforms and VNF utilization scenarios. The proposed VNFM specification defines a set of APIs, modules, and components, for both the end user and the back\u2010end that provide the fundamental set of operations required to fully manage the VNF life cycle. Our primary goal is to simplify the operations, in particular reducing the need for the network operator to know the details of the virtualized infrastructure. Note that the proposed solution fills a gap and complements the ETSI VNFM module. A prototype was implemented, and experimental results show the effectiveness and low overhead of the proposed solution.<\/jats:p>","DOI":"10.1002\/nem.2068","type":"journal-article","created":{"date-parts":[[2019,4,12]],"date-time":"2019-04-12T03:31:19Z","timestamp":1555039879000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Beyond VNFM: Filling the gaps of the ETSI VNF manager to fully support VNF life cycle operations"],"prefix":"10.1002","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7620-3793","authenticated-orcid":false,"given":"Giovanni","family":"Ven\u00e2ncio","sequence":"first","affiliation":[{"name":"Department of Informatics Federal University of Paran\u00e1  Curitiba Brazil"}]},{"given":"Vin\u00edcius Fulber","family":"Garcia","sequence":"additional","affiliation":[{"name":"Department of Applied Computing Federal University of Santa Maria  Santa Maria Brazil"}]},{"given":"Leonardo","family":"da Cruz Marcuzzo","sequence":"additional","affiliation":[{"name":"Department of Applied Computing Federal University of Santa Maria  Santa Maria Brazil"}]},{"given":"Thales Nicolai","family":"Tavares","sequence":"additional","affiliation":[{"name":"Department of Applied Computing Federal University of Santa Maria  Santa Maria Brazil"}]},{"given":"Muriel Figueredo","family":"Franco","sequence":"additional","affiliation":[{"name":"Institute of Informatics Federal University of Rio Grande do Sul  Porto Alegre Brazil"}]},{"given":"Lucas","family":"Bondan","sequence":"additional","affiliation":[{"name":"Institute of Informatics Federal University of Rio Grande do Sul  Porto Alegre Brazil"}]},{"given":"Alberto Egon","family":"Schaeffer\u2010Filho","sequence":"additional","affiliation":[{"name":"Institute of Informatics Federal University of Rio Grande do Sul  Porto Alegre Brazil"}]},{"given":"Carlos Raniery","family":"Paula dos Santos","sequence":"additional","affiliation":[{"name":"Department of Applied Computing Federal University of Santa Maria  Santa Maria Brazil"}]},{"given":"Lisandro Zambenedetti","family":"Granville","sequence":"additional","affiliation":[{"name":"Institute of Informatics Federal University of Rio Grande do Sul  Porto Alegre Brazil"}]},{"suffix":"Jr.","given":"Elias","family":"P. Duarte","sequence":"additional","affiliation":[{"name":"Department of Informatics Federal University of Paran\u00e1  Curitiba Brazil"}]}],"member":"311","published-online":{"date-parts":[[2019,4,11]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2016.7378433"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TNSM.2016.2569020"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2015.2477041"},{"key":"e_1_2_7_5_1","first-page":"v0","article-title":"Network functions virtualisation (nfv); management and orchestration","volume":"1","author":"ETSI","year":"2014","journal-title":"NFV\u2010MAN"},{"key":"e_1_2_7_6_1","unstructured":"Tacker.https:\/\/wiki.openstack.org\/wiki\/Tacker. Accessed: 2017\u201011\u201021."},{"key":"e_1_2_7_7_1","doi-asserted-by":"crossref","unstructured":"OpenBaton.https:\/\/openbaton.github.io\/. 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