< draft-ietf-6man-multicast-scopes-02.txt		draft-ietf-6man-multicast-scopes-03.txt >
	Internet Engineering Task Force R. Droms		Internet Engineering Task Force R. Droms
	Internet-Draft Cisco		Internet-Draft Cisco
	Updates: RFC 4007, RFC 4291 (if approved) November 11, 2013		Updates: RFC 4007, RFC 4291 (if approved) February 14, 2014
	Intended status: Standards Track		Intended status: Standards Track
	Expires: May 15, 2014		Expires: August 18, 2014
	IPv6 Multicast Address Scopes		IPv6 Multicast Address Scopes
	draft-ietf-6man-multicast-scopes-02.txt		draft-ietf-6man-multicast-scopes-03.txt
	Abstract		Abstract
	This document updates the definitions of IPv6 multicast scopes.		This document updates the definitions of IPv6 multicast scopes.
	Status of This Memo		Status of This Memo
	This Internet-Draft is submitted in full conformance with the		This Internet-Draft is submitted in full conformance with the
	provisions of BCP 78 and BCP 79.		provisions of BCP 78 and BCP 79.
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	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
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	This Internet-Draft will expire on May 15, 2014.		This Internet-Draft will expire on August 18, 2014.
	Copyright Notice		Copyright Notice
	Copyright (c) 2013 IETF Trust and the persons identified as the		Copyright (c) 2014 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
	Provisions Relating to IETF Documents		Provisions Relating to IETF Documents
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	publication of this document. Please review these documents		publication of this document. Please review these documents
	carefully, as they describe your rights and restrictions with respect		carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of		include Simplified BSD License text as described in Section 4.e of
	the Trust Legal Provisions and are provided without warranty as		the Trust Legal Provisions and are provided without warranty as
	skipping to change at page 2, line 4 ¶		skipping to change at page 2, line 6 ¶
	Provisions Relating to IETF Documents		Provisions Relating to IETF Documents
	(http://trustee.ietf.org/license-info) in effect on the date of		(http://trustee.ietf.org/license-info) in effect on the date of
	publication of this document. Please review these documents		publication of this document. Please review these documents
	carefully, as they describe your rights and restrictions with respect		carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of		include Simplified BSD License text as described in Section 4.e of
	the Trust Legal Provisions and are provided without warranty as		the Trust Legal Provisions and are provided without warranty as
	described in the Simplified BSD License.		described in the Simplified BSD License.
	1. Definition of IPv6 Multicast Address Scopes (Updates RFC 4291)		1. Definition of IPv6 Multicast Address Scopes (Updates RFC 4291)
	RFC 4291 [RFC4291] defines "scop is a 4-bit multicast scope value		RFC 4291 [RFC4291] defines "scop is a 4-bit multicast scope value
	used to limit the scope of the multicast group." scop 3 is defined as		used to limit the scope of the multicast group." scop 3 is defined as
	"reserved" in RFC 4291. The multicast protocol specification in		"reserved" in RFC 4291. The multicast protocol specification in
	draft-ietf-roll-trickle-mcast [I-D.ietf-roll-trickle-mcast] desires		draft-ietf-roll-trickle-mcast [I-D.ietf-roll-trickle-mcast] desires
	to use multicast scop 3 for transport of multicast traffic scoped to		to use multicast scop 3 for transport of multicast traffic scoped to
	a network of nodes connected in a mesh. The use of this scop value		a network of nodes connected in a mesh. The use of this scop value
	is to accommodate a multicast scope that is greater than Link-Local		is to accommodate a multicast scope that is greater than Link-Local
	but is also automatically determined by the network architecture.		but is also automatically determined by the network architecture.
	The following table updates the definitions in RFC 4291:		The following table updates the definitions in RFC 4291:
	0 reserved		+------+--------------------------+
			| scop | NAME |
	1 Interface-Local scope		+------+--------------------------+
			| 0 | reserved |
	2 Link-Local scope		| 1 | Interface |
			| 2 | Link-Local scope |
	3 Realm-Local scope		| 3 | Realm-Local scope |
			| 4 | Admin-Local scope |
	4 Admin-Local scope		| 5 | Site-Local scope |
			| 6 | (unassigned) |
	5 Site-Local scope		| 7 | (unassigned) |
			| 8 | Organization-Local scope |
	6 (unassigned)		| 9 | (unassigned) |
			| A | (unassigned) |
	7 (unassigned)		| B | (unassigned) |
			| C | (unassigned) |
	8 Organization-Local scope		| D | (unassigned) |
			| E | Global scope |
	9 (unassigned)		| F | reserved |
			+------+--------------------------+
	A (unassigned)
	B (unassigned)
	C (unassigned)
	D (unassigned)
	E Global scope
	F reserved
	The following change is applied to section 2.7 of RFC 4291:		The following change is applied to section 2.7 of RFC 4291:
	OLD:		OLD:
	Admin-Local scope is the smallest scope that must be		Admin-Local scope is the smallest scope that must be
	administratively configured, i.e., not automatically derived		administratively configured, i.e., not automatically derived
	from physical connectivity or other, non-multicast-related		from physical connectivity or other, non-multicast-related
	configuration.		configuration.
	skipping to change at page 4, line 14 ¶		skipping to change at page 4, line 14 ¶
	OLD:		OLD:
	o The boundaries of zones of a scope other than interface-local,		o The boundaries of zones of a scope other than interface-local,
	link-local, and global must be defined and configured by network		link-local, and global must be defined and configured by network
	administrators.		administrators.
	NEW:		NEW:
	o The boundaries of zones of a scope are defined by the IPv6		o The boundaries of zones of a scope are defined by the IPv6
	addressing architecture [RFC4291].		addressing architecture [RFC4291] and updated by this document.
	4. Definition of Realm-Local Scope for IEEE 802.15.4		4. Definition of Realm-Local Scope for IEEE 802.15.4
	When used in an IP-over-IEEE802.15.4 network, "scop 3" is defined to		When used in an IP-over-IEEE802.15.4 network, "scop 3" is defined to
	include all interfaces sharing a PAN ID.		include all interfaces sharing a PAN ID.
	5. IANA Considerations		5. IANA Considerations
	IANA is asked to establish a sub-registry titled "IPv6 Multicast		IANA is asked to establish a sub-registry titled "IPv6 Multicast
	Address Scopes" in the existing "Internet Protocol version 6 (IPv6)		Address Scopes" in the existing "Internet Protocol version 6 (IPv6)
	Multicast Address Allocations" registry. The "IPv6 Multicast Address		Multicast Address Allocations" registry. The new registry is to be
	Scopes" is to be populated with the scope values given in section 1,		populated with the scope values given in section 1. New definitions
	with a note associated with scope 3 listing all RFCs that define		for scop values will be made with "IETF Review" policy. The registry
			will have a note associated with scope 3 listing all RFCs that define
	Realm-Local scoping rules that use scope 3.		Realm-Local scoping rules that use scope 3.
	6. Acknowledgments		6. Acknowledgments
	Robert Cragie, Kerry Lynn, Jinmei Tatuya, Dave Thaler and Stig Venaas		Robert Cragie, Kerry Lynn, Jinmei Tatuya, Dave Thaler and Stig Venaas
	all contributed text and/or review to ensure that the updates to RFC		all contributed text and/or review to ensure that the updates to RFC
	4007 and RFC 4291 are correct		4007 and RFC 4291 are correct
	7. Security Considerations		7. Security Considerations
	This document has no security considerations beyond those in RFC 4291		This document has no security considerations beyond those in RFC 4007
	[RFC4291].		[RFC4007] and RFC 4291 [RFC4291].
	8. References		8. References
	8.1. Normative References		8.1. Normative References
	[RFC4007] Deering, S., Haberman, B., Jinmei, T., Nordmark, E., and		[RFC4007] Deering, S., Haberman, B., Jinmei, T., Nordmark, E., and
	B. Zill, "IPv6 Scoped Address Architecture", RFC 4007,		B. Zill, "IPv6 Scoped Address Architecture", RFC 4007,
	March 2005.		March 2005.
	[RFC4291] Hinden, R. and S. Deering, "IP Version 6 Addressing		[RFC4291] Hinden, R. and S. Deering, "IP Version 6 Addressing
	Architecture", RFC 4291, February 2006.		Architecture", RFC 4291, February 2006.
	8.2. Informative References		8.2. Informative References
	[I-D.ietf-roll-trickle-mcast]		[I-D.ietf-roll-trickle-mcast]
	Hui, J. and R. Kelsey, "Multicast Protocol for Low power		Hui, J. and R. Kelsey, "Multicast Protocol for Low power
	and Lossy Networks (MPL)", draft-ietf-roll-trickle-		and Lossy Networks (MPL)", draft-ietf-roll-trickle-
	mcast-05 (work in progress), August 2013.		mcast-06 (work in progress), January 2014.
	[IEEE802.15.4]		[IEEE802.15.4]
	IEEE Std 802.15.4-2006, "IEEE Standard for Information		IEEE Std 802.15.4-2006, "IEEE Standard for Information
	technology - Telecommunications and information exchange		technology - Telecommunications and information exchange
	between systems - Local and metropolitan area networks -		between systems - Local and metropolitan area networks -
	Specific requirements; Part 15.4: Wireless Medium Access		Specific requirements; Part 15.4: Wireless Medium Access
	Control (MAC) and Physical Layer (PHY) Specifications for		Control (MAC) and Physical Layer (PHY) Specifications for
	Low-Rate Wireless Personal Area Networks (WPANs)", October		Low-Rate Wireless Personal Area Networks (WPANs)", October
	2006.		2006.
End of changes. 11 change blocks.
	43 lines changed or deleted		34 lines changed or added
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