< draft-hu-rtgwg-srv6-egress-protection-01.txt   draft-hu-rtgwg-srv6-egress-protection-02.txt >
Network Working Group Z. Hu Network Working Group Z. Hu
Internet-Draft H. Chen Internet-Draft Huawei Technologies
Intended status: Standards Track Huawei Technologies Intended status: Standards Track H. Chen
Expires: October 2, 2019 H. Chen Expires: January 9, 2020 Futurewei
H. Chen
China Telecom China Telecom
P. Wu P. Wu
Huawei Technologies Huawei Technologies
March 31, 2019 July 8, 2019
SRv6 Path Egress Protection SRv6 Path Egress Protection
draft-hu-rtgwg-srv6-egress-protection-01 draft-hu-rtgwg-srv6-egress-protection-02
Abstract Abstract
This document describes protocol extensions and procedures for This document describes protocol extensions and procedures for
protecting the egress node of a Segment Routing for IPv6 (SRv6) path. protecting the egress node of a Segment Routing for IPv6 (SRv6) path.
Requirements Language Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
skipping to change at page 1, line 41 skipping to change at page 1, line 42
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 October 2, 2019. This Internet-Draft will expire on January 9, 2020.
Copyright Notice Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the Copyright (c) 2019 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
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.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminologies . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Terminologies . . . . . . . . . . . . . . . . . . . . . . . . 3
3. SR Path Egress Protection . . . . . . . . . . . . . . . . . . 3 3. SR Path Egress Protection . . . . . . . . . . . . . . . . . . 4
4. Extensions to IGP for Egress Protection . . . . . . . . . . . 5 4. Extensions to IGP for Egress Protection . . . . . . . . . . . 5
4.1. Extensions to IS-IS . . . . . . . . . . . . . . . . . . . 5 4.1. Extensions to IS-IS . . . . . . . . . . . . . . . . . . . 5
4.2. Extensions to OSPF . . . . . . . . . . . . . . . . . . . 7 4.2. Extensions to OSPF . . . . . . . . . . . . . . . . . . . 7
5. Behavior for SRv6 Mirror SID . . . . . . . . . . . . . . . . 9 5. Behavior for SRv6 Mirror SID . . . . . . . . . . . . . . . . 9
6. Security Considerations . . . . . . . . . . . . . . . . . . . 9 6. Security Considerations . . . . . . . . . . . . . . . . . . . 9
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 10 8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 10
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 10 9. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
9.1. Normative References . . . . . . . . . . . . . . . . . . 10 9.1. Normative References . . . . . . . . . . . . . . . . . . 10
9.2. Informative References . . . . . . . . . . . . . . . . . 11 9.2. Informative References . . . . . . . . . . . . . . . . . 11
skipping to change at page 10, line 24 skipping to change at page 10, line 24
9.1. Normative References 9.1. Normative References
[I-D.bashandy-isis-srv6-extensions] [I-D.bashandy-isis-srv6-extensions]
Psenak, P., Filsfils, C., Bashandy, A., Decraene, B., and Psenak, P., Filsfils, C., Bashandy, A., Decraene, B., and
Z. Hu, "IS-IS Extensions to Support Routing over IPv6 Z. Hu, "IS-IS Extensions to Support Routing over IPv6
Dataplane", draft-bashandy-isis-srv6-extensions-05 (work Dataplane", draft-bashandy-isis-srv6-extensions-05 (work
in progress), March 2019. in progress), March 2019.
[I-D.hu-spring-segment-routing-proxy-forwarding] [I-D.hu-spring-segment-routing-proxy-forwarding]
Hu, Z., Chen, H., Yao, J., and C. Bowers, "Segment Routing Hu, Z., Chen, H., Yao, J., Bowers, C., and Y. Zhu, "SR-TE
Proxy Forwarding", draft-hu-spring-segment-routing-proxy- Path Midpoint Protection", draft-hu-spring-segment-
forwarding-01 (work in progress), March 2019. routing-proxy-forwarding-03 (work in progress), April
2019.
[I-D.ietf-isis-segment-routing-extensions] [I-D.ietf-isis-segment-routing-extensions]
Previdi, S., Ginsberg, L., Filsfils, C., Bashandy, A., Previdi, S., Ginsberg, L., Filsfils, C., Bashandy, A.,
Gredler, H., and B. Decraene, "IS-IS Extensions for Gredler, H., and B. Decraene, "IS-IS Extensions for
Segment Routing", draft-ietf-isis-segment-routing- Segment Routing", draft-ietf-isis-segment-routing-
extensions-23 (work in progress), March 2019. extensions-25 (work in progress), May 2019.
[I-D.ietf-ospf-segment-routing-extensions] [I-D.ietf-ospf-segment-routing-extensions]
Psenak, P., Previdi, S., Filsfils, C., Gredler, H., Psenak, P., Previdi, S., Filsfils, C., Gredler, H.,
Shakir, R., Henderickx, W., and J. Tantsura, "OSPF Shakir, R., Henderickx, W., and J. Tantsura, "OSPF
Extensions for Segment Routing", draft-ietf-ospf-segment- Extensions for Segment Routing", draft-ietf-ospf-segment-
routing-extensions-27 (work in progress), December 2018. routing-extensions-27 (work in progress), December 2018.
[I-D.li-ospf-ospfv3-srv6-extensions] [I-D.li-ospf-ospfv3-srv6-extensions]
Li, Z., Hu, Z., Cheng, D., Talaulikar, K., and P. Psenak, Li, Z., Hu, Z., Cheng, D., Talaulikar, K., and P. Psenak,
"OSPFv3 Extensions for SRv6", draft-li-ospf- "OSPFv3 Extensions for SRv6", draft-li-ospf-
ospfv3-srv6-extensions-03 (work in progress), March 2019. ospfv3-srv6-extensions-04 (work in progress), July 2019.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997, DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>. <https://www.rfc-editor.org/info/rfc2119>.
[RFC7356] Ginsberg, L., Previdi, S., and Y. Yang, "IS-IS Flooding [RFC7356] Ginsberg, L., Previdi, S., and Y. Yang, "IS-IS Flooding
Scope Link State PDUs (LSPs)", RFC 7356, Scope Link State PDUs (LSPs)", RFC 7356,
DOI 10.17487/RFC7356, September 2014, DOI 10.17487/RFC7356, September 2014,
<https://www.rfc-editor.org/info/rfc7356>. <https://www.rfc-editor.org/info/rfc7356>.
skipping to change at page 11, line 27 skipping to change at page 11, line 27
[I-D.bashandy-rtgwg-segment-routing-ti-lfa] [I-D.bashandy-rtgwg-segment-routing-ti-lfa]
Bashandy, A., Filsfils, C., Decraene, B., Litkowski, S., Bashandy, A., Filsfils, C., Decraene, B., Litkowski, S.,
Francois, P., daniel.voyer@bell.ca, d., Clad, F., and P. Francois, P., daniel.voyer@bell.ca, d., Clad, F., and P.
Camarillo, "Topology Independent Fast Reroute using Camarillo, "Topology Independent Fast Reroute using
Segment Routing", draft-bashandy-rtgwg-segment-routing-ti- Segment Routing", draft-bashandy-rtgwg-segment-routing-ti-
lfa-05 (work in progress), October 2018. lfa-05 (work in progress), October 2018.
[I-D.hegde-spring-node-protection-for-sr-te-paths] [I-D.hegde-spring-node-protection-for-sr-te-paths]
Hegde, S., Bowers, C., Litkowski, S., Xu, X., and F. Xu, Hegde, S., Bowers, C., Litkowski, S., Xu, X., and F. Xu,
"Node Protection for SR-TE Paths", draft-hegde-spring- "Node Protection for SR-TE Paths", draft-hegde-spring-
node-protection-for-sr-te-paths-04 (work in progress), node-protection-for-sr-te-paths-05 (work in progress),
October 2018. July 2019.
[I-D.ietf-spring-segment-routing-policy] [I-D.ietf-spring-segment-routing-policy]
Filsfils, C., Sivabalan, S., daniel.voyer@bell.ca, d., Filsfils, C., Sivabalan, S., daniel.voyer@bell.ca, d.,
bogdanov@google.com, b., and P. Mattes, "Segment Routing bogdanov@google.com, b., and P. Mattes, "Segment Routing
Policy Architecture", draft-ietf-spring-segment-routing- Policy Architecture", draft-ietf-spring-segment-routing-
policy-02 (work in progress), October 2018. policy-03 (work in progress), May 2019.
[I-D.sivabalan-pce-binding-label-sid] [I-D.sivabalan-pce-binding-label-sid]
Sivabalan, S., Filsfils, C., Tantsura, J., Hardwick, J., Sivabalan, S., Filsfils, C., Tantsura, J., Hardwick, J.,
Previdi, S., and C. Li, "Carrying Binding Label/Segment-ID Previdi, S., and C. Li, "Carrying Binding Label/Segment-ID
in PCE-based Networks.", draft-sivabalan-pce-binding- in PCE-based Networks.", draft-sivabalan-pce-binding-
label-sid-06 (work in progress), February 2019. label-sid-07 (work in progress), July 2019.
[RFC5462] Andersson, L. and R. Asati, "Multiprotocol Label Switching [RFC5462] Andersson, L. and R. Asati, "Multiprotocol Label Switching
(MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic
Class" Field", RFC 5462, DOI 10.17487/RFC5462, February Class" Field", RFC 5462, DOI 10.17487/RFC5462, February
2009, <https://www.rfc-editor.org/info/rfc5462>. 2009, <https://www.rfc-editor.org/info/rfc5462>.
Authors' Addresses Authors' Addresses
Zhibo Hu Zhibo Hu
Huawei Technologies Huawei Technologies
Huawei Bld., No.156 Beiqing Rd. Huawei Bld., No.156 Beiqing Rd.
Beijing 100095 Beijing 100095
China China
Email: huzhibo@huawei.com Email: huzhibo@huawei.com
Huaimo Chen Huaimo Chen
Huawei Technologies Futurewei
Boston, MA Boston, MA
USA USA
Email: Huaimo.chen@huawei.com Email: Huaimo.chen@futurewei.com
Huanan Chen Huanan Chen
China Telecom China Telecom
109, West Zhongshan Road, Tianhe District 109, West Zhongshan Road, Tianhe District
Guangzhou 510000 Guangzhou 510000
China China
Email: chenhn8.gd@chinatelecom.cn Email: chenhn8.gd@chinatelecom.cn
Peng Wu Peng Wu
 End of changes. 13 change blocks. 
19 lines changed or deleted 21 lines changed or added

This html diff was produced by rfcdiff 1.47. The latest version is available from http://tools.ietf.org/tools/rfcdiff/