Internet Engineering Task Force (IETF) O. Troan, Ed. Request for Comments: 7597 W. Dec Category: Standards Track Cisco Systems ISSN: 2070-1721 X. Li C. Bao Tsinghua University S. Matsushima SoftBank Telecom T. Murakami IP Infusion T. Taylor, Ed. Huawei Technologies July 2015 Mapping of Address and Port with Encapsulation (MAP-E) Abstract This document describes a mechanism for transporting IPv4 pa