< draft-ietf-spring-compression-analysis-00.txt   draft-ietf-spring-compression-analysis-01.txt >
SPRING R. Bonica SPRING R. Bonica
Internet-Draft Juniper Internet-Draft Juniper
Intended status: Informational W. Cheng Intended status: Informational W. Cheng
Expires: March 30, 2022 China Mobile Expires: September 30, 2022 China Mobile
D. Dukes, Ed. D. Dukes, Ed.
Cisco Systems Cisco Systems
W. Henderickx W. Henderickx
Nokia Nokia
C. Li C. Li
Huawei Huawei
P. Shaofu P. Shaofu
ZTE ZTE
C. Xie C. Xie
China Telecom China Telecom
September 26, 2021 March 29, 2022
Compressed SRv6 SID List Analysis Compressed SRv6 SID List Analysis
draft-ietf-spring-compression-analysis-00 draft-ietf-spring-compression-analysis-01
Abstract Abstract
Several mechanisms have been proposed to compress the SRv6 SID list. Several mechanisms have been proposed to compress the SRv6 SID list.
This document analyzes each mechanism with regard to the requirements This document analyzes each mechanism with regard to the requirements
stated in the companion requirements document. stated in the companion requirements document.
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
skipping to change at page 1, line 43 skipping to change at page 1, line 43
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 March 30, 2022. This Internet-Draft will expire on September 30, 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 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
skipping to change at page 2, line 47 skipping to change at page 2, line 47
3.4.1. Compression Levels . . . . . . . . . . . . . . . . . 18 3.4.1. Compression Levels . . . . . . . . . . . . . . . . . 18
4. Protocol Design Requirements . . . . . . . . . . . . . . . . 18 4. Protocol Design Requirements . . . . . . . . . . . . . . . . 18
4.1. SRv6 Base Coexistence . . . . . . . . . . . . . . . . . . 18 4.1. SRv6 Base Coexistence . . . . . . . . . . . . . . . . . . 18
5. Security Requirements . . . . . . . . . . . . . . . . . . . . 19 5. Security Requirements . . . . . . . . . . . . . . . . . . . . 19
5.1. Security Mechanisms . . . . . . . . . . . . . . . . . . . 19 5.1. Security Mechanisms . . . . . . . . . . . . . . . . . . . 19
5.2. SR Domain Protection . . . . . . . . . . . . . . . . . . 19 5.2. SR Domain Protection . . . . . . . . . . . . . . . . . . 19
6. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . 19 6. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . 19
7. Normative References . . . . . . . . . . . . . . . . . . . . 21 7. Normative References . . . . . . . . . . . . . . . . . . . . 21
Appendix A. Encapsulation analysis . . . . . . . . . . . . . . . 24 Appendix A. Encapsulation analysis . . . . . . . . . . . . . . . 24
A.1. CRH note . . . . . . . . . . . . . . . . . . . . . . . . 24 A.1. CRH note . . . . . . . . . . . . . . . . . . . . . . . . 24
A.2. Analysis results . . . . . . . . . . . . . . . . . . . . 24 A.2. Analysis results . . . . . . . . . . . . . . . . . . . . 25
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 27 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 27
1. Introduction 1. Introduction
The following mechanisms are proposed to compress the SRv6 SID list: The following mechanisms are proposed to compress the SRv6 SID list:
o CSID - [I-D.filsfilscheng-spring-srv6-srh-comp-sl-enc] - Describes o CSID - [I-D.filsfilscheng-spring-srv6-srh-comp-sl-enc] - Describes
two new SRv6 SID flavors, a combination of SID flavors from two new SRv6 SID flavors, a combination of SID flavors from
[I-D.filsfils-spring-net-pgm-extension-srv6-usid] and [I-D.filsfils-spring-net-pgm-extension-srv6-usid] and
[I-D.cl-spring-generalized-srv6-for-cmpr] [I-D.cl-spring-generalized-srv6-for-cmpr]
skipping to change at page 21, line 18 skipping to change at page 21, line 18
o All proposals address security issues they may introduce with o All proposals address security issues they may introduce with
existing security mechanisms. existing security mechanisms.
o All proposals protect SIDs within the SR domain. o All proposals protect SIDs within the SR domain.
7. Normative References 7. Normative References
[I-D.bonica-6man-comp-rtg-hdr] [I-D.bonica-6man-comp-rtg-hdr]
Bonica, R., Kamite, Y., Alston, A., Henriques, D., and L. Bonica, R., Kamite, Y., Alston, A., Henriques, D., and L.
Jalil, "The IPv6 Compact Routing Header (CRH)", draft- Jalil, "The IPv6 Compact Routing Header (CRH)", draft-
bonica-6man-comp-rtg-hdr-26 (work in progress), May 2021. bonica-6man-comp-rtg-hdr-27 (work in progress), November
2021.
[I-D.bonica-6man-vpn-dest-opt] [I-D.bonica-6man-vpn-dest-opt]
Bonica, R., Kamite, Y., Jalil, L., Zhou, Y., and G. Chen, Bonica, R., Kamite, Y., Jalil, L., Zhou, Y., and G. Chen,
"The IPv6 Tunnel Payload Forwarding (TPF) Option", draft- "The IPv6 Tunnel Payload Forwarding (TPF) Option", draft-
bonica-6man-vpn-dest-opt-16 (work in progress), July 2021. bonica-6man-vpn-dest-opt-17 (work in progress), January
2022.
[I-D.bonica-lsr-crh-isis-extensions] [I-D.bonica-lsr-crh-isis-extensions]
Kaneriya, P., Shetty, R., Hegde, S., and R. Bonica, "IS-IS Kaneriya, P., Shetty, R., Hegde, S., and R. Bonica, "IS-IS
Extensions To Support The IPv6 Compressed Routing Header Extensions To Support The IPv6 Compressed Routing Header
(CRH)", draft-bonica-lsr-crh-isis-extensions-05 (work in (CRH)", draft-bonica-lsr-crh-isis-extensions-06 (work in
progress), August 2021. progress), February 2022.
[I-D.cl-spring-generalized-srv6-for-cmpr] [I-D.cl-spring-generalized-srv6-for-cmpr]
Cheng, W., Li, Z., Li, C., Clad, F., Liu, A., Xie, C., (editor), W. C., Li, Z., (editor), C. L., Clad, F., Liu,
Liu, Y., and S. Zadok, "Generalized SRv6 Network A., Xie, C., Liu, Y., and S. Zadok, "Generalized SRv6
Programming for SRv6 Compression", draft-cl-spring- Network Programming for SRv6 Compression", draft-cl-
generalized-srv6-for-cmpr-03 (work in progress), April spring-generalized-srv6-for-cmpr-04 (work in progress),
2021. October 2021.
[I-D.decraene-spring-srv6-vlsid] [I-D.decraene-spring-srv6-vlsid]
Decraene, B., Raszuk, R., Li, Z., and C. Li, "SRv6 vSID: Decraene, B., Raszuk, R., Li, Z., and C. Li, "SRv6 vSID:
Network Programming extension for variable length SIDs", Network Programming extension for variable length SIDs",
draft-decraene-spring-srv6-vlsid-06 (work in progress), draft-decraene-spring-srv6-vlsid-07 (work in progress),
September 2021. March 2022.
[I-D.filsfils-spring-net-pgm-extension-srv6-usid] [I-D.filsfils-spring-net-pgm-extension-srv6-usid]
Filsfils, C., Garvia, P. C., Cai, D., Voyer, D., Meilik, Filsfils, C., Garvia, P. C., Cai, D., Voyer, D., Meilik,
I., Patel, K., Henderickx, W., Jonnalagadda, P., Melman, I., Patel, K., Henderickx, W., Jonnalagadda, P., Melman,
D., Liu, Y., and J. Guichard, "Network Programming D., Liu, Y., and J. Guichard, "Network Programming
extension: SRv6 uSID instruction", draft-filsfils-spring- extension: SRv6 uSID instruction", draft-filsfils-spring-
net-pgm-extension-srv6-usid-11 (work in progress), net-pgm-extension-srv6-usid-12 (work in progress),
September 2021. December 2021.
[I-D.filsfilscheng-spring-srv6-srh-comp-sl-enc] [I-D.filsfilscheng-spring-srv6-srh-comp-sl-enc]
Cheng, W., Filsfils, C., Li, Z., Cai, D., Voyer, D., Clad, Cheng, W., Filsfils, C., Li, Z., Cai, D., Voyer, D., Clad,
F., Zadok, S., Guichard, J. N., and L. Aihua, "Compressed F., Zadok, S., Guichard, J. N., and L. Aihua, "Compressed
SRv6 Segment List Encoding in SRH", draft-filsfilscheng- SRv6 Segment List Encoding in SRH", draft-filsfilscheng-
spring-srv6-srh-comp-sl-enc-03 (work in progress), May spring-srv6-srh-comp-sl-enc-03 (work in progress), May
2021. 2021.
[I-D.ietf-6man-spring-srv6-oam] [I-D.ietf-6man-spring-srv6-oam]
Ali, Z., Filsfils, C., Matsushima, S., Voyer, D., and M. Ali, Z., Filsfils, C., Matsushima, S., Voyer, D., and M.
Chen, "Operations, Administration, and Maintenance (OAM) Chen, "Operations, Administration, and Maintenance (OAM)
in Segment Routing Networks with IPv6 Data plane (SRv6)", in Segment Routing Networks with IPv6 Data plane (SRv6)",
draft-ietf-6man-spring-srv6-oam-11 (work in progress), draft-ietf-6man-spring-srv6-oam-13 (work in progress),
June 2021. January 2022.
[I-D.ietf-bess-srv6-services] [I-D.ietf-bess-srv6-services]
Dawra, G., Filsfils, C., Talaulikar, K., Raszuk, R., Dawra, G., Talaulikar, K., Raszuk, R., Decraene, B.,
Decraene, B., Zhuang, S., and J. Rabadan, "SRv6 BGP based Zhuang, S., and J. Rabadan, "SRv6 BGP based Overlay
Overlay Services", draft-ietf-bess-srv6-services-07 (work Services", draft-ietf-bess-srv6-services-15 (work in
in progress), April 2021. progress), March 2022.
[I-D.ietf-idr-bgpls-srv6-ext] [I-D.ietf-idr-bgpls-srv6-ext]
Dawra, G., Filsfils, C., Talaulikar, K., Chen, M., Dawra, G., Filsfils, C., Talaulikar, K., Chen, M.,
Bernier, D., and B. Decraene, "BGP Link State Extensions Bernier, D., and B. Decraene, "BGP Link State Extensions
for SRv6", draft-ietf-idr-bgpls-srv6-ext-08 (work in for SRv6", draft-ietf-idr-bgpls-srv6-ext-09 (work in
progress), June 2021. progress), November 2021.
[I-D.ietf-lsr-flex-algo] [I-D.ietf-lsr-flex-algo]
Psenak, P., Hegde, S., Filsfils, C., Talaulikar, K., and Psenak, P., Hegde, S., Filsfils, C., Talaulikar, K., and
A. Gulko, "IGP Flexible Algorithm", draft-ietf-lsr-flex- A. Gulko, "IGP Flexible Algorithm", draft-ietf-lsr-flex-
algo-17 (work in progress), July 2021. algo-18 (work in progress), October 2021.
[I-D.ietf-lsr-ip-flexalgo] [I-D.ietf-lsr-ip-flexalgo]
Britto, W., Hegde, S., Kaneriya, P., Shetty, R., Bonica, Britto, W., Hegde, S., Kaneriya, P., Shetty, R., Bonica,
R., and P. Psenak, "IGP Flexible Algorithms (Flex- R., and P. Psenak, "IGP Flexible Algorithms (Flex-
Algorithm) In IP Networks", draft-ietf-lsr-ip-flexalgo-03 Algorithm) In IP Networks", draft-ietf-lsr-ip-flexalgo-04
(work in progress), May 2021. (work in progress), December 2021.
[I-D.ietf-lsr-isis-srv6-extensions] [I-D.ietf-lsr-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 Segment Routing over Z. Hu, "IS-IS Extensions to Support Segment Routing over
IPv6 Dataplane", draft-ietf-lsr-isis-srv6-extensions-17 IPv6 Dataplane", draft-ietf-lsr-isis-srv6-extensions-18
(work in progress), June 2021. (work in progress), October 2021.
[I-D.ietf-rtgwg-segment-routing-ti-lfa] [I-D.ietf-rtgwg-segment-routing-ti-lfa]
Litkowski, S., Bashandy, A., Filsfils, C., Francois, P., Litkowski, S., Bashandy, A., Filsfils, C., Francois, P.,
Decraene, B., and D. Voyer, "Topology Independent Fast Decraene, B., and D. Voyer, "Topology Independent Fast
Reroute using Segment Routing", draft-ietf-rtgwg-segment- Reroute using Segment Routing", draft-ietf-rtgwg-segment-
routing-ti-lfa-07 (work in progress), June 2021. routing-ti-lfa-08 (work in progress), January 2022.
[I-D.ietf-spring-segment-routing-policy] [I-D.ietf-spring-segment-routing-policy]
Filsfils, C., Talaulikar, K., Voyer, D., Bogdanov, A., and Filsfils, C., Talaulikar, K., Voyer, D., Bogdanov, A., and
P. Mattes, "Segment Routing Policy Architecture", draft- P. Mattes, "Segment Routing Policy Architecture", draft-
ietf-spring-segment-routing-policy-13 (work in progress), ietf-spring-segment-routing-policy-22 (work in progress),
May 2021. March 2022.
[I-D.ietf-spring-sr-service-programming] [I-D.ietf-spring-sr-service-programming]
Clad, F., Xu, X., Filsfils, C., Bernier, D., Li, C., Clad, F., Xu, X., Filsfils, C., Bernier, D., Li, C.,
Decraene, B., Ma, S., Yadlapalli, C., Henderickx, W., and Decraene, B., Ma, S., Yadlapalli, C., Henderickx, W., and
S. Salsano, "Service Programming with Segment Routing", S. Salsano, "Service Programming with Segment Routing",
draft-ietf-spring-sr-service-programming-05 (work in draft-ietf-spring-sr-service-programming-05 (work in
progress), September 2021. progress), September 2021.
[I-D.mirsky-6man-unified-id-sr] [I-D.mirsky-6man-unified-id-sr]
Weiqiang, C., Mirsky, G., Shaofu, P., Aihua, L., and G. S. Weiqiang, C., Mirsky, G., Shaofu, P., Aihua, L., and G. S.
 End of changes. 20 change blocks. 
35 lines changed or deleted 37 lines changed or added

This html diff was produced by rfcdiff 1.48. The latest version is available from http://tools.ietf.org/tools/rfcdiff/