< draft-ietf-isis-segment-routing-extensions-17.txt		draft-ietf-isis-segment-routing-extensions-18.txt >
	IS-IS for IP Internets S. Previdi, Ed.		IS-IS for IP Internets S. Previdi, Ed.
	Internet-Draft L. Ginsberg, Ed.		Internet-Draft L. Ginsberg, Ed.
	Intended status: Standards Track C. Filsfils		Intended status: Standards Track C. Filsfils
	Expires: December 17, 2018 Cisco Systems, Inc.		Expires: December 21, 2018 Cisco Systems, Inc.
	A. Bashandy		A. Bashandy
	H. Gredler		H. Gredler
	RtBrick Inc.		RtBrick Inc.
	S. Litkowski		S. Litkowski
	B. Decraene		B. Decraene
	Orange		Orange
	J. Tantsura		J. Tantsura
	Nuage Networks		Nuage Networks
	June 15, 2018		June 19, 2018
	IS-IS Extensions for Segment Routing		IS-IS Extensions for Segment Routing
	draft-ietf-isis-segment-routing-extensions-17		draft-ietf-isis-segment-routing-extensions-18
	Abstract		Abstract
	Segment Routing (SR) allows for a flexible definition of end-to-end		Segment Routing (SR) allows for a flexible definition of end-to-end
	paths within IGP topologies by encoding paths as sequences of		paths within IGP topologies by encoding paths as sequences of
	topological sub-paths, called "segments". These segments are		topological sub-paths, called "segments". These segments are
	advertised by the link-state routing protocols (IS-IS and OSPF).		advertised by the link-state routing protocols (IS-IS and OSPF).
	This draft describes the necessary IS-IS extensions that need to be		This draft describes the necessary IS-IS extensions that need to be
	introduced for Segment Routing operating on an MPLS data-plane.		introduced for Segment Routing operating on an MPLS data-plane.
	skipping to change at page 2, line 10 ¶		skipping to change at page 2, line 10 ¶
	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 December 17, 2018.		This Internet-Draft will expire on December 21, 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 14, line 25 ¶		skipping to change at page 14, line 25 ¶
	Type: TBD, suggested value 1		Type: TBD, suggested value 1
	Length: variable		Length: variable
	SID/Label: if length is set to 3 then the 20 rightmost bits		SID/Label: if length is set to 3 then the 20 rightmost bits
	represent a MPLS label.		represent a MPLS label.
	2.4. SID/Label Binding TLV		2.4. SID/Label Binding TLV
	The SID/Label Binding TLV MAY be originated by any router in an IS-IS		The SID/Label Binding TLV MAY be originated by any router in an IS-IS
	domain.		domain. There are multiple uses of the SID/Label Binding TLV.
	The SID/Label Binding TLV is used to advertise prefixes to SID/Label		The SID/Label Binding TLV may be used to advertise prefixes to SID/
	mappings. This functionality is called the Segment Routing Mapping		Label mappings. This functionality is called the Segment Routing
	Server (SRMS). The behavior of the SRMS is defined in		Mapping Server (SRMS). The behavior of the SRMS is defined in
	[I-D.ietf-spring-segment-routing-ldp-interop].		[I-D.ietf-spring-segment-routing-ldp-interop].
			The SID/Label BInding TLV may also be used to advertise a Mirror SID
			to advertise the ability to process traffic originally destined to
			another IGP node. This behavior is defined in
			[I-D.ietf-spring-segment-routing] .
	The SID/Label Binding TLV has Type TBD (suggested value 149), and has		The SID/Label Binding TLV has Type TBD (suggested value 149), and has
	the following format:		the following format:
	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 | Flags | RESERVED |		| Type | Length | Flags | RESERVED |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| Range | Prefix Length | Prefix |		| Range | Prefix Length | Prefix |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
End of changes. 7 change blocks.
	8 lines changed or deleted		13 lines changed or added
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