Distributed Mobility Managment Working D. Liu
Group H. Deng
Internet-Draft China Mobile
Intended status: Informational March 5, 2012
Expires: September 6, 2012
Mobility API Extension for DMM
draft-liu-dmm-mobility-api-00
Abstract
RFC 5014 specifies extension to socket API to allow application to
specify the preference among multiple source addresses.
draft-liu-dmm-address-selection-00 proposes to extend router
advertisment message to carry the prefix type information. The
mobile node can learn the prefix type information from the router
advertisment message. This document proposes an extension to RFC
5014 to enable the application to select the DMM related prefixes.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on September 6, 2012.
Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
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Table of Contents
1. Extension of RFC 5014 . . . . . . . . . . . . . . . . . . . . . 3
2. Usage Example . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3
4. Security Considerations . . . . . . . . . . . . . . . . . . . . 4
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 4
6. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.1. Normative References . . . . . . . . . . . . . . . . . . . 4
6.2. Informative References . . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 4
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1. Extension of RFC 5014
RFC 5014 defines socket API extension used for source address
selection. Application can use this API to override the default
source address selection mechnism for IPv6. Currently, RFC 5014
defines the following type of source address selection preference:
IPV6_PREFER_SRC_HOME /* Prefer Home address as source */
IPV6_PREFER_SRC_COA /* Prefer Care-of address as source */
IPV6_PREFER_SRC_TMP /* Prefer Temporary address as source */
IPV6_PREFER_SRC_PUBLIC /* Prefer Public address as source */
IPV6_PREFER_SRC_CGA /* Prefer CGA address as source */
IPV6_PREFER_SRC_NONCGA /* Prefer a non-CGA address as source */
This document proposes to extend the above definition to add two new
flags:
IPV6_PREFER_SRC_LOCAL_HNP:
Prefer to use locally allocated home network prefix.
IPV6_PREFER_SRC_REMOTE_HNP:
Prefer to use the home network prefix that allocated by other access
router instead of the one that the MN currently attach.
2. Usage Example
This section gives usage example for this API extension.
In DMM scenario, the application on the mobile node can always select
the IPV6_PREFER_SRC_LOCAL_HNP as the most preferred soure address.
The mobile node's operating system need to guarantee that for the on-
going session, it will not interupt the on-going session even there
is a new prefix available.
3. IANA Considerations
This document makes no request of IANA.
Note to RFC Editor: this section may be removed on publication as an
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RFC.
4. Security Considerations
TBD
5. Acknowledgements
TBD
6. References
6.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
6.2. Informative References
[I-D.draft-seite-dmm-dma-00]
"Distributed Mobility Anchoring", February 2012.
Authors' Addresses
Dapeng Liu
China Mobile
32 Xuanwumen West Street
Beijng, Xicheng District 100053
China
Phone: +86-13911788933
Email: liudapeng@chinamobile.com
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Hui Deng
China Mobile
32 Xuanwumen West Street
Beijng, Xicheng District 100053
China
Phone:
Fax:
Email: denghui@chinamobile.com
URI:
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