Sockets Application Program Interface (API) for Multihoming Shim
RFC 6316
Internet Engineering Task Force (IETF) M. Komu
Request for Comments: 6316 Aalto University
Category: Informational M. Bagnulo
ISSN: 2070-1721 UC3M
K. Slavov
S. Sugimoto, Ed.
Ericsson
July 2011
Sockets Application Program Interface (API) for Multihoming Shim
Abstract
This document specifies sockets API extensions for the multihoming
shim layer. The API aims to enable interactions between applications
and the multihoming shim layer for advanced locator management, and
access to information about failure detection and path exploration.
This document is based on an assumption that a multihomed host is
equipped with a conceptual sub-layer (hereafter called "shim sub-
layer") inside the IP layer that maintains mappings between
identifiers and locators. Examples of the shim are Shim6 and the
Host Identity Protocol (HIP).
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/rfc6316.
Komu, et al. Informational [Page 1]
RFC 6316 Multihoming Shim API July 2011
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Table of Contents
1. Introduction ....................................................3
2. Requirements Language ...........................................4
3. Terminology and Background ......................................4
4. System Overview .................................................7
5. Requirements ....................................................8
6. Socket Options for Multihoming Shim Sub-Layer ..................10
6.1. SHIM_ASSOCIATED ...........................................14
6.2. SHIM_DONTSHIM .............................................15
6.3. SHIM_HOT_STANDBY ..........................................16
6.4. SHIM_LOC_LOCAL_PREF .......................................17
6.5. SHIM_LOC_PEER_PREF ........................................18
6.6. SHIM_LOC_LOCAL_RECV .......................................19
6.7. SHIM_LOC_PEER_RECV ........................................20
6.8. SHIM_LOC_LOCAL_SEND .......................................20
6.9. SHIM_LOC_PEER_SEND ........................................22
6.10. SHIM_LOCLIST_LOCAL .......................................23
6.11. SHIM_LOCLIST_PEER ........................................25
6.12. SHIM_APP_TIMEOUT .........................................26
6.13. SHIM_PATHEXPLORE .........................................27
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