BFD Status

Recent Working Group Publications

  • RFC7331 (was draft-ietf-bfd-mib) - BFD MIB. Published August 2014.
  • RFC7332 (was draft-ietf-bfd-tc-mib) - BFD TC MIB. Published August 2014.
  • RFC7419 (was draft-ietf-bfd-intervals) - Common Interval Support in Bidirectional Forwarding Detection. Published December 2014.
  • RFC 7726 - Clarifying Procedures for Establishing BFD Sessions for MPLS Label Switched Paths (LSPs). Published January 2015.

Seamless BFD

  • RFC 7880 - Seamless Bidirectional Forwarding Detection (S-BFD). Published July 2016
  • RFC 7881 - Bidirectional Forwarding Detection (S-BFD) for IPv4, IPv6, and MPLS. Published July 2016.
  • RFC 7882 - Seamless Bidirectional Forwarding Detection (S-BFD) Use Cases. Published July 2016.

Non-BFD-WG Seamless BFD

  • RFC 7883 - Advertising Seamless Bidirectional Forwarding Detection (S-BFD) Discriminators in IS-IS. Published July 2016
  • RFC 7884 - OSPF Extensions to Advertise Seamless Bidirectional Forwarding Detection (S-BFD) Target Discriminators. Published July 2016.
  • RFC 7885 - Seamless Bidirectional Forwarding Detection (S-BFD) for Virtual Circuit Connectivity Verification (VCCV). Published July 2016.
  • RFC 7886 - Advertising Seamless Bidirectional Forwarding Detection (S-BFD) Discriminators in the Layer Two Tunneling Protocol Version 3 (L2TPv3). Published July 2016.

Related Contributions

  • RFC 7492 - Analysis of Bidirectional Forwarding Detection (BFD) Security According to the Keying and Authentication for Routing Protocols (KARP) Design Guidelines

Working Group Documents in Progress


  • draft-ietf-bfd-mpls-mib

(2017-03, Documents are Expired, still in charter, but considered Dead.)
(2015-11, Need review comments on the mailing list and MIB doctor review)
(2015-09-18, Authors responded to editorial suggestions. Newer version published in June 2015. Awaiting final editorial comment response and decision about how to go forward.)


  • draft-ietf-bfd-multipoint 2018-03 submitted to IESG
  • draft-ietf-bfd-multipoint-active-tail 2018-03 submitted to IESG


  • draft-ietf-bfd-yang 2018-03 submitted to IESG


  • draft-ietf-bfd-optimizing-authentication - Optimizing BFD Authentication (2018-03-28 in WGLC ending 2018-04-20)
  • draft-ietf-bfd-secure-sequence-numbers - (2018-03-28 in WGLC ending 2018-04-20)
  • draft-ietf-bfd-generic-crypto-auth (2015-03-21, Expired, Awaiting Implementation to Progress)
  • draft-ietf-bfd-hmac-sha (2015-03-21, Expired, Awaiting Implementation to Progress)

Miscellaneous Documents

  • draft-ietf-bfd-stability (2018-03-28 in WGLC ending 2018-04-20)
  • draft-ietf-bfd-vxlan 2018-01 adopted as WG document

Seamless BFD

Non-WG S-BFD Documents of Interest

  • draft-li-idr-bgp-ls-sbfd-extensions - BGP Link-State Extensions for Seamless BFD.
    (2017-12 Document was refreshed in 2017, currently expired.)

Likely Upcoming Work

Non-WG BFD Documents of Interest

  • draft-chen-bfd-unsolicited - Unsolicited BFD for Sessionless Applications.
  • draft-am-bfd-performance - BFD Performance Measurement.
  • draft-mirsky-mpls-bfd-bootstrap-clarify - Clarifying Use of LSP Ping to Bootstrap BFD over MPLS LSP.
  • draft-mirsky-bfd-mpls-demand - BFD in Demand Mode over Point-to-Point MPLS LSP.
  • draft-mirsky-spring-bfd - Bidirectional Forwarding Detection (BFD) in Segment Routing Networks Using MPLS Dataplane.
  • draft-mirsky-mpls-p2mp-bfd - BFD for Multipoint Networks over Point-to-Multi-Point MPLS LSP.
  • draft-adubey-bfd-service-redundancy - Service Redundancy using BFD.
  • RFC6428 - CC, CV, and RDI for MPLS-TP
  • draft-ietf-idr-rs-bfd (was draft-ymbk-idr-rs-bfd) - Making Route-Servers Aware of Data Link Failures at IXPs
  • draft-ietf-mpls-bfd-directed (was draft-mirsky-mpls-bfd-directed)
    2015-08-31: Adopted in MPLS as a WG document.
    2014-11-26: Presented at IETF-91 with updates. Goal is to have adoption in MPLS. BFD will provide review.
    2014-07-21: Presented at IETF-90. Also presented in MPLS and SPRING. Received mic comments. Requires further discussion. Authors are encouraged to discuss with authors of draft-vgovindan-mpls-extended-bfd-disc-tlv to create a single BFD TLV model.
  • draft-ietf-trill-p2mp-bfd (was) draft-zhang-trill-p2mp-bfd
    2017-12: In IETF Last Call.
    2015-06: Adopted in TRILL.
    2015-03-21: To be presented at IETF-92.
  • draft-nitish-vrrp-bfd-p2p - Fast failure detection in VRRP with Point to Point BFD.
    • Re-split of BFD for VRRP proposal for p2p case after RTGWG didn't adopt merged document with IPR issues on the P2MP mechanism. Discussion
    • Previously: draft-nitish-vrrp-bfd and draft-mirsky-bfd-p2mp-vrrp-use-case
      2015-11 Authors have merged their proposals in draft-nitish-vrrp-bfd. Targeted for RTGWG
  • draft-gmsm-bess-evpn-bfd (was) draft-vgovindan-l2vpn-evpn-bfd
    2017-03-22: Was presented at BFD in IETF-96. No recent updates.
    2016-07-18: To be presented at IETF-96
  • draft-ietf-bess-mvpn-fast-failover uses multipoint-BFD.

Documents Presented but not Adopted

draft-tanmir-rtgwg-bfd-mc-lag-ip (Not adopted))

WG adoption poll ending 2017-04-30 did not show consensus to adopt.

draft-tanmir-rtgwg-bfd-mc-lag-mpls (Not adopted))

WG adoption poll ending 2017-04-30 did not show consensus to adopt.

draft-akiya-bfd-seamless-alert-discrim (abandoned)

2015-03-25: Re-presented in BFD session. Author has decided to table the work and not seek adoption at this time.

draft-snyder-bfd-proxy-connections-monitored-links (expired 2014-11)

2014-07-21: Presented at IETF-90. No time to take questions at mic; requested comments to the list. Author also presented in MANET. Long term intention would be to adopt in BFD since the mechanism has potential for re-use outside of the immediately targeted scenario.

draft-vgovindan-l2vpn-evpn-bfd (expired 2015-07)

2014-07-21: Presented at IETF-90. Additionally, discussion notes that there may be some overlap with BFD Multipoint. Authors encouraged to work with multipoint draft editor to reconcile the use cases. Document should be updated afterward.

draft-vgovindan-mpls-extended-bfd-disc-tlv (expired 2015-01)

2014-07-21: Presented at IETF-90. Also presented in MPLS. Good line of questioning at mic. Authors are encouraged to discuss with authors of draft-mirsky-mpls-bfd-directed to create a single BFD TLV model.

draft-zhang-bfd-new-use-cases (expired 2015-01)

2014-07-21: Presented at IETF-90. Minimal discussion at mic; requested comments to the list. Author's intention is to adopt in BFD as a use case draft and drive solution drafts separately. However, a revision may be beneficial to clearly describe the use cases authors have in mind, in order to progress the discussion.

Last modified 7 months ago Last modified on Mar 28, 2018, 10:09:23 AM