< draft-zhang-bier-babel-extensions-06.txt		draft-zhang-bier-babel-extensions-07.txt >
	BIER WG Z. Zhang		BIER WG Z. Zhang
	Internet-Draft ZTE Corporation		Internet-Draft ZTE Corporation
	Intended status: Standards Track A. Przygienda		Intended status: Standards Track A. Przygienda
	Expires: 11 May 2022 Juniper Networks		Expires: 2 November 2022 Juniper Networks
	7 November 2021		1 May 2022
	BIER in BABEL		BIER in BABEL
	draft-zhang-bier-babel-extensions-06		draft-zhang-bier-babel-extensions-07
	Abstract		Abstract
	BIER introduces a novel multicast architecture. It does not require		BIER introduces a novel multicast architecture. It does not require
	a signaling protocol to explicitly build multicast distribution		a signaling protocol to explicitly build multicast distribution
	trees, nor does it require intermediate nodes to maintain any per-		trees, nor does it require intermediate nodes to maintain any per-
	flow state.		flow state.
	Babel defines a distance-vector routing protocol that operates in a		Babel defines a distance-vector routing protocol that operates in a
	robust and efficient fashion both in wired as well as in wireless		robust and efficient fashion both in wired as well as in wireless
	skipping to change at page 1, line 39 ¶		skipping to change at page 1, line 39 ¶
	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 11 May 2022.		This Internet-Draft will expire on 2 November 2022.
	Copyright Notice		Copyright Notice
	Copyright (c) 2021 IETF Trust and the persons identified as the		Copyright (c) 2022 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 (https://trustee.ietf.org/		Provisions Relating to IETF Documents (https://trustee.ietf.org/
	license-info) in effect on the date of publication of this document.		license-info) in effect on the date of publication of this document.
	Please review these documents carefully, as they describe your rights		Please review these documents carefully, as they describe your rights
	and restrictions with respect to this document. Code Components		and restrictions with respect to this document. Code Components
	extracted from this document must include Simplified BSD License text		extracted from this document must include Revised BSD License text as
	as described in Section 4.e of the Trust Legal Provisions and are		described in Section 4.e of the Trust Legal Provisions and are
	provided without warranty as described in the Simplified BSD License.		provided without warranty as described in the Revised BSD License.
	Table of Contents		Table of Contents
	1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2		1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
	2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2		2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
	3. Conventions Used in This Document . . . . . . . . . . . . . . 3		3. Conventions Used in This Document . . . . . . . . . . . . . . 3
	4. Advertisement of BIER information . . . . . . . . . . . . . . 3		4. Advertisement of BIER information . . . . . . . . . . . . . . 3
	4.1. BIER BFR-prefix and BIER sub-TLV . . . . . . . . . . . . 3		4.1. BIER BFR-prefix and BIER sub-TLV . . . . . . . . . . . . 3
	4.1.1. BIER sub-TLV . . . . . . . . . . . . . . . . . . . . 3		4.1.1. BIER sub-TLV . . . . . . . . . . . . . . . . . . . . 3
	4.2. BIER MPLS Encapsulation sub-sub-TLV . . . . . . . . . . . 4		4.2. BIER MPLS Encapsulation sub-sub-TLV . . . . . . . . . . . 4
	skipping to change at page 5, line 21 ¶		skipping to change at page 5, line 21 ¶
	* Local BitString Length (BS Len): Encoded BitString length as per		* Local BitString Length (BS Len): Encoded BitString length as per
	[RFC8296]. 4 bits.		[RFC8296]. 4 bits.
	* Label: First label, 20 bits. The labels are as defined in		* Label: First label, 20 bits. The labels are as defined in
	[RFC8296].		[RFC8296].
	4.3. BIER non-MPLS Encapsulation sub-sub-TLV		4.3. BIER non-MPLS Encapsulation sub-sub-TLV
	The BIER non-MPLS Encapsulation sub-sub-TLV can be carried by BIER		The BIER non-MPLS Encapsulation sub-sub-TLV can be carried by BIER
	sub-TLV. The format and restrictions are aligned with		sub-TLV. The format and restrictions are aligned with
	[I-D.ietf-bier-lsr-ethernet-extensions]. This sub-sub-TLV carries		[I-D.ietf-bier-lsr-non-mpls-extensions]. This sub-sub-TLV carries
	the information for the BIER MPLS encapsulation including the label		the information for the BIER MPLS encapsulation including the label
	range for a specific BSL for a certain <MT,SD> pair.		range for a specific BSL for a certain <MT,SD> pair.
	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
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| Type | Length |		| Type | Length |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| Max SI | BIFT-id |		| Max SI | BIFT-id |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	skipping to change at page 7, line 42 ¶		skipping to change at page 7, line 42 ¶
	[RFC8966] Chroboczek, J. and D. Schinazi, "The Babel Routing		[RFC8966] Chroboczek, J. and D. Schinazi, "The Babel Routing
	Protocol", RFC 8966, DOI 10.17487/RFC8966, January 2021,		Protocol", RFC 8966, DOI 10.17487/RFC8966, January 2021,
	<https://www.rfc-editor.org/info/rfc8966>.		<https://www.rfc-editor.org/info/rfc8966>.
	8.2. Informative References		8.2. Informative References
	[I-D.ietf-bier-bierin6]		[I-D.ietf-bier-bierin6]
	Zhang, Z., Zhang, Z., Wijnands, I., Mishra, M., Bidgoli,		Zhang, Z., Zhang, Z., Wijnands, I., Mishra, M., Bidgoli,
	H., and G. Mishra, "Supporting BIER in IPv6 Networks		H., and G. Mishra, "Supporting BIER in IPv6 Networks
	(BIERin6)", Work in Progress, Internet-Draft, draft-ietf-		(BIERin6)", Work in Progress, Internet-Draft, draft-ietf-
	bier-bierin6-00, 14 June 2021,		bier-bierin6-04, 2 March 2022,
	<https://www.ietf.org/archive/id/draft-ietf-bier-		<https://www.ietf.org/archive/id/draft-ietf-bier-
	bierin6-00.txt>.		bierin6-04.txt>.
	[I-D.ietf-bier-lsr-ethernet-extensions]		[I-D.ietf-bier-lsr-non-mpls-extensions]
	Dhanaraj, S., Yan, G., Wijnands, I., Psenak, P., Zhang,		Dhanaraj, S., Yan, G., Wijnands, I., Psenak, P., Zhang,
	Z., and J. Xie, "LSR Extensions for BIER over Ethernet",		Z., and J. Xie, "LSR Extensions for BIER non-MPLS
	Work in Progress, Internet-Draft, draft-ietf-bier-lsr-		Encapsulation", Work in Progress, Internet-Draft, draft-
	ethernet-extensions-02, 2 December 2020,		ietf-bier-lsr-non-mpls-extensions-00, 1 March 2022,
	<https://www.ietf.org/archive/id/draft-ietf-bier-lsr-		<https://www.ietf.org/archive/id/draft-ietf-bier-lsr-non-
	ethernet-extensions-02.txt>.		mpls-extensions-00.txt>.
	[I-D.ietf-bier-ospfv3-extensions]		[I-D.ietf-bier-ospfv3-extensions]
	Psenak, P., Nainar, N. K., and I. Wijnands, "OSPFv3		Psenak, P., Nainar, N. K., and I. Wijnands, "OSPFv3
	Extensions for BIER", Work in Progress, Internet-Draft,		Extensions for BIER", Work in Progress, Internet-Draft,
	draft-ietf-bier-ospfv3-extensions-04, 18 May 2021,		draft-ietf-bier-ospfv3-extensions-05, 19 November 2021,
	<https://www.ietf.org/archive/id/draft-ietf-bier-ospfv3-		<https://www.ietf.org/archive/id/draft-ietf-bier-ospfv3-
	extensions-04.txt>.		extensions-05.txt>.
	Authors' Addresses		Authors' Addresses
	Zheng(Sandy) Zhang		Zheng(Sandy) Zhang
	ZTE Corporation		ZTE Corporation
	Email: zhang.zheng@zte.com.cn		Email: zhang.zheng@zte.com.cn
	Tony Przygienda		Tony Przygienda
	Juniper Networks		Juniper Networks
	Email: prz@juniper.net		Email: prz@juniper.net
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	21 lines changed or deleted		19 lines changed or added
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