< draft-ietf-bier-ospf-bier-extensions-11.txt		draft-ietf-bier-ospf-bier-extensions-12.txt >
	OSPF P. Psenak, Ed.		OSPF P. Psenak, Ed.
	Internet-Draft N. Kumar		Internet-Draft N. Kumar
	Intended status: Standards Track IJ. Wijnands		Intended status: Standards Track IJ. Wijnands
	Expires: August 16, 2018 Cisco		Expires: August 18, 2018 Cisco
	A. Dolganow		A. Dolganow
	Nokia		Nokia
	T. Przygienda		T. Przygienda
	J. Zhang		J. Zhang
	Juniper Networks, Inc.		Juniper Networks, Inc.
	S. Aldrin		S. Aldrin
	Google, Inc.		Google, Inc.
	February 12, 2018		February 14, 2018
	OSPF Extensions for BIER		OSPF Extensions for BIER
	draft-ietf-bier-ospf-bier-extensions-11.txt		draft-ietf-bier-ospf-bier-extensions-12.txt
	Abstract		Abstract
	Bit Index Explicit Replication (BIER) is an architecture that		Bit Index Explicit Replication (BIER) is an architecture that
	provides multicast forwarding through a "BIER domain" without		provides multicast forwarding through a "BIER domain" without
	requiring intermediate routers to maintain multicast related per-flow		requiring intermediate routers to maintain multicast related per-flow
	state. Neither does BIER require an explicit tree-building protocol		state. Neither does BIER require an explicit tree-building protocol
	for its operation. A multicast data packet enters a BIER domain at a		for its operation. A multicast data packet enters a BIER domain at a
	"Bit-Forwarding Ingress Router" (BFIR), and leaves the BIER domain at		"Bit-Forwarding Ingress Router" (BFIR), and leaves the BIER domain at
	one or more "Bit-Forwarding Egress Routers" (BFERs). The BFIR router		one or more "Bit-Forwarding Egress Routers" (BFERs). The BFIR router
	skipping to change at page 2, line 7 ¶		skipping to change at page 2, line 7 ¶
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	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-
	Drafts is at https://datatracker.ietf.org/drafts/current/.		Drafts is at https://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	This Internet-Draft will expire on August 16, 2018.		This Internet-Draft will expire on August 18, 2018.
	Copyright Notice		Copyright Notice
	Copyright (c) 2018 IETF Trust and the persons identified as the		Copyright (c) 2018 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
	(https://trustee.ietf.org/license-info) in effect on the date of		(https://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
	skipping to change at page 5, line 46 ¶		skipping to change at page 5, line 46 ¶
	The size of the label range is determined by the number of Set		The size of the label range is determined by the number of Set
	Identifiers (SI) (section 1 of [RFC8279]) that are used in the		Identifiers (SI) (section 1 of [RFC8279]) that are used in the
	network. Each SI maps to a single label in the label range. The		network. Each SI maps to a single label in the label range. The
	first label is for SI=0, the second label is for SI=1, etc.		first label is for SI=0, the second label is for SI=1, etc.
	If same BS length is repeated in multiple BIER MPLS Encapsulation		If same BS length is repeated in multiple BIER MPLS Encapsulation
	Sub-TLV inside the same BIER Sub-TLV, the BIER sub-TLV MUST be		Sub-TLV inside the same BIER Sub-TLV, the BIER sub-TLV MUST be
	ignored.		ignored.
	Label ranges within all BIER MPLS Encapsulation Sub-TLV inside the		Label ranges within all BIER MPLS Encapsulation Sub-TLVs advertised
	same BIER Sub-TLV MUST NOT overlap. If the overlap is detected, the		by the same BFR MUST NOT overlap. If the overlap is detected, the
	advertising router MUST be treated as if it did not advertise a BIER		advertising router MUST be treated as if it did not advertise any
	sub-TLV.		BIER sub-TLVs.
	All advertised labels MUST be valid, otherwise the BIER sub-TLV MUST		All advertised labels MUST be valid, otherwise the BIER sub-TLV MUST
	be ignored.		be ignored.
	2.3. Flooding scope of BIER Information		2.3. Flooding scope of BIER Information
	The flooding scope of the OSPF Extended Prefix Opaque LSA [RFC7684]		The flooding scope of the OSPF Extended Prefix Opaque LSA [RFC7684]
	that is used for advertising the BIER Sub-TLV is set to area-local.		that is used for advertising the BIER Sub-TLV is set to area-local.
	To allow BIER deployment in a multi-area environment, OSPF must		To allow BIER deployment in a multi-area environment, OSPF must
	propagate BIER information between areas.		propagate BIER information between areas.
End of changes. 5 change blocks.
	8 lines changed or deleted		8 lines changed or added
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