< draft-ietf-ospf-ospfv3-lsa-extend-15.txt		draft-ietf-ospf-ospfv3-lsa-extend-16.txt >
	Network Working Group A. Lindem		Network Working Group A. Lindem
	Internet-Draft A. Roy		Internet-Draft A. Roy
	Intended status: Standards Track Cisco Systems		Intended status: Standards Track Cisco Systems
	Expires: April 12, 2018 D. Goethals		Expires: May 1, 2018 D. Goethals
	Nokia		Nokia
	V. Reddy Vallem		V. Reddy Vallem
	Huawei, Inc		Huawei, Inc
	F. Baker		F. Baker
	October 9, 2017		October 28, 2017
	OSPFv3 LSA Extendibility		OSPFv3 LSA Extendibility
	draft-ietf-ospf-ospfv3-lsa-extend-15.txt		draft-ietf-ospf-ospfv3-lsa-extend-16.txt
	Abstract		Abstract
	OSPFv3 requires functional extension beyond what can readily be done		OSPFv3 requires functional extension beyond what can readily be done
	with the fixed-format Link State Advertisement (LSA) as described in		with the fixed-format Link State Advertisement (LSA) as described in
	RFC 5340. Without LSA extension, attributes associated with OSPFv3		RFC 5340. Without LSA extension, attributes associated with OSPFv3
	links and advertised IPv6 prefixes must be advertised in separate		links and advertised IPv6 prefixes must be advertised in separate
	LSAs and correlated to the fixed-format LSAs. This document extends		LSAs and correlated to the fixed-format LSAs. This document extends
	the LSA format by encoding the existing OSPFv3 LSA information in		the LSA format by encoding the existing OSPFv3 LSA information in
	Type-Length-Value (TLV) tuples and allowing advertisement of		Type-Length-Value (TLV) tuples and allowing advertisement of
	skipping to change at page 1, line 44 ¶		skipping to change at page 1, line 44 ¶
	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 http://datatracker.ietf.org/drafts/current/.		Drafts is at http://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 April 12, 2018.		This Internet-Draft will expire on May 1, 2018.
	Copyright Notice		Copyright Notice
	Copyright (c) 2017 IETF Trust and the persons identified as the		Copyright (c) 2017 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
	(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
	skipping to change at page 4, line 39 ¶		skipping to change at page 4, line 39 ¶
	Przygienda for review of the draft versions and discussions of		Przygienda for review of the draft versions and discussions of
	backward compatibility.		backward compatibility.
	Thanks to Alan Davey for review and comments including the suggestion		Thanks to Alan Davey for review and comments including the suggestion
	to separate the extended LSA TLV definitions from the extended LSAs		to separate the extended LSA TLV definitions from the extended LSAs
	definitions.		definitions.
	Thanks to David Lamparter for review and suggestions on backward		Thanks to David Lamparter for review and suggestions on backward
	compatibility.		compatibility.
	Thanks to Karsten Thomann, Chris Bowers, and Meng Zhang for review		Thanks to Karsten Thomann, Chris Bowers, Meng Zhang, and Nagendra
	and editorial comments.		Kumar for review and editorial comments.
	The RFC text was produced using Marshall Rose's xml2rfc tool.		The RFC text was produced using Marshall Rose's xml2rfc tool.
	2. OSPFv3 Extended LSA Types		2. OSPFv3 Extended LSA Types
	In order to provide backward compatibility, new LSA codes must be		In order to provide backward compatibility, new LSA codes must be
	allocated. There are eight fixed-format LSAs defined in RFC 5340		allocated. There are eight fixed-format LSAs defined in RFC 5340
	[OSPFV3]. For ease of implementation and debugging, the LSA function		[OSPFV3]. For ease of implementation and debugging, the LSA function
	codes are the same as the fixed-format LSAs only with 32, i.e., 0x20,		codes are the same as the fixed-format LSAs only with 32, i.e., 0x20,
	added. The alternative to this mapping was to allocate a bit in the		added. The alternative to this mapping was to allocate a bit in the
	skipping to change at page 13, line 11 ¶		skipping to change at page 13, line 11 ¶
	o 2 - IPv4 Forwarding Address sub-TLV (Section 3.11)		o 2 - IPv4 Forwarding Address sub-TLV (Section 3.11)
	o 3 - Route Tag sub-TLV (Section 3.12)		o 3 - Route Tag sub-TLV (Section 3.12)
	3.7. Intra-Area-Prefix TLV		3.7. Intra-Area-Prefix TLV
	The Intra-Area-Prefix TLV defines a single OSPFv3 intra-area prefix.		The Intra-Area-Prefix TLV defines a single OSPFv3 intra-area prefix.
	The field definitions correspond directly to the content of an OSPFv3		The field definitions correspond directly to the content of an OSPFv3
	IPv6 Prefix as defined in Section A.4.1, [OSPFV3] and an OSPFv3 Link-		IPv6 Prefix as defined in Section A.4.1, [OSPFV3] and an OSPFv3 Link-
	LSA, as defined in section A.4.9, [OSPFV3]. The Intra-Area-Prefix		LSA, as defined in section A.4.9, [OSPFV3]. The Intra-Area-Prefix
	TLV is only applicable to the E-Link-LSA (Section 4.7) and the		TLV is only applicable to the E-Link-LSA (Section 4.7) and the E-
	Additionally, the PrefixOptions are extended as described in		Intra-Area-Prefix-LSA (Section 4.8). Additionally, the PrefixOptions
	Section 3.1. E-Intra-Area-Prefix-LSA (Section 4.8). Inclusion in		are extended as described in Section 3.1. Inclusion in other
	other Extended LSAs MUST be ignored.		Extended LSAs MUST be ignored.
	0 1 2 3		0 1 2 3
	0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1		0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| 6 (Intra-Area Prefix) | TLV Length |		| 6 (Intra-Area Prefix) | TLV Length |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| 0 | Metric |		| 0 | Metric |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| PrefixLength | PrefixOptions | 0 |		| PrefixLength | PrefixOptions | 0 |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
End of changes. 6 change blocks.
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