Logical-Interface Support for IP Hosts with Multi-Access Support (RFC7847)
Original Publication Date: 2016-May-01
Included in the Prior Art Database: 2016-Jun-29
Internet Society Requests For Comment (RFCs)
T. Melia: AUTHOR [+4]
Proxy Mobile IPv6 (PMIPv6) [RFC5213] is a network-based mobility management protocol standardized by IETF. One of the key goals of the PMIPv6 protocol is to enable a mobile node to perform handovers across access networks based on different access technologies. The protocol was also designed with the goal to allow a mobile node to simultaneously attach to different access networks and perform flow- based access selection [RFC7864]. The base protocol features specified in [RFC5213] and [RFC5844] have support for these capabilities. However, to support these features, the mobile node is required to be enabled with a specific software configuration known as logical-interface support. The logical-interface configuration is essential for a mobile node to perform inter-access handovers without impacting the IP sessions on the host.
Internet Engineering Task Force (IETF) T. Melia, Ed. Request for Comments: 7847 Kudelski Security Category: Informational S. Gundavelli, Ed. ISSN: 2070-1721 Cisco May 2016
Logical-Interface Support for IP Hosts with Multi-Access Support
A logical interface is a software semantic internal to the host operating system. This semantic is available in all popular operating systems and is used in various protocol implementations. Logical-interface support is required on the mobile node attached to a Proxy Mobile IPv6 domain for leveraging various network-based mobility management features such as inter-technology handoffs, multihoming, and flow mobility support. This document explains the operational details of the logical-interface construct and the specifics on how link-layer implementations hide the physical interfaces from the IP stack and from the network nodes on the attached access networks. Furthermore, this document identifies the applicability of this approach to various link-layer technologies and analyzes the issues around it when used in conjunction with various mobility management features.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7847.
Melia & Gundavelli Informational [Page 1]
RFC 7847 Logical-Interface Support May 2016
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