@techreport{chen-softwire-4rd-u-comment-00, number = {draft-chen-softwire-4rd-u-comment-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-chen-softwire-4rd-u-comment/00/}, author = {Maoke Chen}, title = {{A Commentary on 4rd-U Architecture and Semantics}}, pagetotal = 19, year = 2012, month = apr, day = 10, abstract = {4rd-U is proposed as an effort of unifying encapsulation and double translation solutions for the softwire of IPv4 over IPv6 domain. This attempt introduces new behaviors in the Internet transition architecture as well as semantics other than that of well-known Internet protocols. This documents provides a commentary on the semantic changes and their impacts.}, }