draft-ietf-bfd-seamless-base-04.txt   draft-ietf-bfd-seamless-base-05.txt 
Internet Engineering Task Force N. Akiya Internet Engineering Task Force N. Akiya
Internet-Draft C. Pignataro Internet-Draft Big Switch Networks
Updates: 5880 (if approved) D. Ward Updates: 5880 (if approved) C. Pignataro
Intended status: Standards Track Cisco Systems Intended status: Standards Track D. Ward
Expires: July 16, 2015 M. Bhatia Expires: December 21, 2015 Cisco Systems
M. Bhatia
Ionos Networks Ionos Networks
S. Pallagatti S. Pallagatti
Juniper Networks Juniper Networks
January 12, 2015 June 19, 2015
Seamless Bidirectional Forwarding Detection (S-BFD) Seamless Bidirectional Forwarding Detection (S-BFD)
draft-ietf-bfd-seamless-base-04 draft-ietf-bfd-seamless-base-05
Abstract Abstract
This document defines a simplified mechanism to use Bidirectional This document defines a simplified mechanism to use Bidirectional
Forwarding Detection (BFD) with large portions of negotiation aspects Forwarding Detection (BFD) with large portions of negotiation aspects
eliminated, thus providing benefits such as quick provisioning as eliminated, thus providing benefits such as quick provisioning as
well as improved control and flexibility to network nodes initiating well as improved control and flexibility to network nodes initiating
the path monitoring. the path monitoring.
This document updates RFC5880. This document updates RFC5880.
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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 July 16, 2015. This Internet-Draft will expire on December 21, 2015.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2015 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
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Nagendra Kumar Nagendra Kumar
Cisco Systems Cisco Systems
Email: naikumar@cisco.com Email: naikumar@cisco.com
Mallik Mudigonda Mallik Mudigonda
Cisco Systems Cisco Systems
Email: mmudigon@cisco.com Email: mmudigon@cisco.com
Sam Aldrin Sam Aldrin
Huawei Technologies Google
Email: aldrin.ietf@gmail.com Email: aldrin.ietf@gmail.com
15. References 15. References
15.1. Normative References 15.1. Normative References
[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, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5880] Katz, D. and D. Ward, "Bidirectional Forwarding Detection [RFC5880] Katz, D. and D. Ward, "Bidirectional Forwarding Detection
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15.2. Informative References 15.2. Informative References
[I-D.ietf-bfd-generic-crypto-auth] [I-D.ietf-bfd-generic-crypto-auth]
Bhatia, M., Manral, V., Zhang, D., and M. Jethanandani, Bhatia, M., Manral, V., Zhang, D., and M. Jethanandani,
"BFD Generic Cryptographic Authentication", draft-ietf- "BFD Generic Cryptographic Authentication", draft-ietf-
bfd-generic-crypto-auth-06 (work in progress), April 2014. bfd-generic-crypto-auth-06 (work in progress), April 2014.
[I-D.ietf-bfd-multipoint] [I-D.ietf-bfd-multipoint]
Katz, D., Ward, D., and J. Networks, "BFD for Multipoint Katz, D., Ward, D., and J. Networks, "BFD for Multipoint
Networks", draft-ietf-bfd-multipoint-04 (work in Networks", draft-ietf-bfd-multipoint-06 (work in
progress), August 2014. progress), May 2015.
[I-D.ietf-bfd-seamless-use-case] [I-D.ietf-bfd-seamless-use-case]
Aldrin, S., Bhatia, M., Mirsky, G., Kumar, N., and S. Bhatia, M., Matsushima, S., Mirsky, G., and N. Kumar,
Matsushima, "Seamless Bidirectional Forwarding Detection "Seamless Bidirectional Forwarding Detection (BFD) Use
(BFD) Use Case", draft-ietf-bfd-seamless-use-case-01 (work Case", draft-ietf-bfd-seamless-use-case-02 (work in
in progress), December 2014. progress), April 2015.
[RFC5885] Nadeau, T. and C. Pignataro, "Bidirectional Forwarding [RFC5885] Nadeau, T. and C. Pignataro, "Bidirectional Forwarding
Detection (BFD) for the Pseudowire Virtual Circuit Detection (BFD) for the Pseudowire Virtual Circuit
Connectivity Verification (VCCV)", RFC 5885, June 2010. Connectivity Verification (VCCV)", RFC 5885, June 2010.
Appendix A. Loop Problem Appendix A. Loop Problem
Consider a scenario where we have two nodes and both are S-BFD Consider a scenario where we have two nodes and both are S-BFD
capable. capable.
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state which is anyway not significant at reflector. state which is anyway not significant at reflector.
o Use of local discriminator as My Disc at reflector: Reflector will o Use of local discriminator as My Disc at reflector: Reflector will
always fill in My Discriminator with a locally allocated always fill in My Discriminator with a locally allocated
discriminator value (not reserved discriminators) and will not discriminator value (not reserved discriminators) and will not
copy it from the received packet. copy it from the received packet.
Authors' Addresses Authors' Addresses
Nobo Akiya Nobo Akiya
Cisco Systems Big Switch Networks
Email: nobo@cisco.com Email: nobo.akiya.dev@gmail.com
Carlos Pignataro Carlos Pignataro
Cisco Systems Cisco Systems
Email: cpignata@cisco.com Email: cpignata@cisco.com
Dave Ward Dave Ward
Cisco Systems Cisco Systems
Email: wardd@cisco.com Email: wardd@cisco.com
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