IETF 95 Routing Area Working Group High-Level Summary

Summaries and Status through IETF 95

Summary Template

Meeting Day/Time: (If not meeting, just say so.)

WG Highlights: (Hot Topics, Work Streams, Cross-WG/Area items, other news, new/dead work, etc.)

WG Status Summary: (Publications/RFC Editor/IESG/WGLC Queues (since last IETF) -- Optional.)

Links: Agenda WG Charter Minutes


Meeting Day/Time: MOnday, April 4, 2016 1550-1720

WG Highlights: Presentation of topic and proposed charter

WG Status Summary: Indication of good support for writers and reviewers; Strong support for forming a working group, with some dissent.

Links: [h Agenda] draft BoF Charter Minutes


Meeting: Thursday, 7th of April, Afternoon session I 14:00-16:00

WG Highlights

Still more requests than we could accommodate for in 2h. Reflects good dynamics of the group and enables for prioritization of topics to discuss.

One implementation policy has been setup

Late IPR becoming common

EVPN/DC remains big topic
MVPN continues to be a work item
Yang is maturing
Proposals popping up around automation and OAM

WG Status Summary

Pretty dense inter-meeting period:
4 new RFCs

  • RFC 7716 Global Table Multicast with BGP Multicast VPN (BGP-MVPN) Procedures
  • RFC 7734 Support for Shortest Path Bridging MAC Mode over Ethernet VPN (EVPN)
  • RFC 7740 Simulating Partial Mesh of Multipoint-to-Multipoint (MP2MP) Provider Tunnels with Ingress Replication
  • RFC 7814 Virtual Subnet: A BGP/MPLS IP VPN-Based Subnet Extension Solution

3 WG Last Calls

5 drafts adopted as WG documents

1 draft not adopted as WG document


Working Group Status. BFD Wiki

Not meeting in Buenos Aires

New RFCs:

  • RFC 7726 - Clarifying Procedures for Establishing BFD Sessions for MPLS Label Switched Paths (LSPs)

Existing Work:

Multipoint work stable, getting implementations for base spec. Trill has dependency on active head case. Technically ready for WGLC, but no consensus to move forward last IETF-94.

S(eamless)-BFD documents all working their way through the IESG queue.

BFD MPLS MIB stalled.


  • Generic keying mehanism stalled.
  • SHA-1 similarly stalled.
  • New work on optimizing authentication - some progress, needs discussion with security area.

BFD Yang, no progress since last IETF.

Potential new work:

Work on BFD outside of Working Group:


Meeting on Wednesday

WG Highlights:

  • Discussion about adoption of several drafts as WG items
  • Discussion about possible move to STANDARDS track
  • Things are going generally well (looks like things are on track, ahead of schedule, under budget)


Meeting: Monday - 14:00-15:30 - Afternoon session I

WG Highlights:

  • First YANG draft adopted (WSON), 1 individual draft (IP-WDM if), 3 brand new drafts (microwave, WDM management and transport NBI). Coordination with TEAS needed for the latter.
  • Black links work turned into Management and Control of DWDM optical interfaces parameters: Framework WG-adopted
  • 2 Brand new topics: microwave, flexible ethernet.

WG Status Summary:

Links: Agenda WG Charter Minutes


Met: Tuesday April 5, 2016 10:00-12:30 Tuesday Morning session I

Links: Agenda WG Charter Raw Notes


  • I2RS is a "re-use" protocol where the goal is to re-use and extend a protocol rather than create new one.
  • This process takes a different path: define the problem, the new architecture, the potential "re-use" protocols, the requirements for extension, the security for the protocol the security environment, and the protocol "strawman" that describes how the "new protocol" comes from the old protocol. This mechanism means that we do not "re-invent" the protocols, and hopefully speed things to market.
  • One challenge/benefit with this process is it takes a great deal cooperation/flexibility between "old protocol" and "new protocol" developers.
  • The second challenge is that the process of finalizing the work requires a lot of "double-checking" to make sure all the necessary changes.
  • In 2015, we finalized the general scope of the problem, architecture, two potential "re-use" protocol (NETCONF/RESTCONF), the extensions, the security, and the security environment, a protocol strawman, and our base yang modules.
  • IETF 95 focused on checking to see if we needed another "re-use protocol", checking to see if the all the requirements and protocol strawman are ready to go to netconf or netmod.
  • netmod/restconf chairs/experts + security have been very helpful and cooperative.
  • At the same time, the IETF hackathon had two projects (NETCONF push) and the I2RS RIB Yang model project that made significant progress in getting an open source project up and working.


IDR 4/5 10:00-12:30am Topics: *1) Protecting BGP against Bogus things *1a) route leaks - Mitigation + Detection/Filtering?

*1b) Bogus Attribute bits draft-keyupate-idr-bgp-attribute-announcement-00.txt

*2) Updates/revisions BGP-LS, Aids to Segment Routing, New Communities, Add Paths

*3) Tunnels Create aid in BGP draft-dong-idr-ls-ip-tunnel-00 [11:15-11:25]

*3) Policy in BGP *3a) BGP Flow Specification (BGP-FS ) is revising RFC 5575 (aka Policy in BGP )

to add RFC5575 filters and actions in two ways. We have 15 drafts requesting these changes

  • Option 1: Just extend RFC5575 (DDoS use case)
  • Option 2: New NLRI + BGP Wide Communities (NFV/central control)
  • For option 2, the IDR chairs are asking for providers to let us know their needs.

*4) Requests from Data Center Providers on Aids in BGP

*PlanneIDR Interims before IETF96: 5/2/2016 6/6/2016, 6/27/2016

  • Interim topics: Flow Specification + Yang + (your topic here)




  • Meeting: Thursday, April 3, 17:30, Room Atlantico B
  • WG Highlights:
    • The WG group is rechartering
      • The proposed Charter, under review by the IESG, is now ready for External Review.

  • WG Status Summary:
    • No new RFCs
    • LISP DDT revised document needed (fixing comment from document shepherd)
    • LCAF Document has been stable for a while and seems good to move forward.
    • The EID Block and EID Block Management document have been move forward for publication.
    • This make a total of 5 documents in the RFC Editor Queue.


  • MANET is not meeting in Buenos Aires.
  • WG Highlights:
    • DLEP (Dynamic Link Exchange Protocol) finished last call and has been passed out of working group.
    • AODVv2 is the last remaining charter item to complete. Work is ongoing and will be last called soon.
    • New work on informational RFC5444 usage draft started.
  • WG Status Summary:

Drafts Published:

Drafts submitted to IESG for Publication:

Existing WG documents:


  • MPLS is meeting Wednesday morning in Buenos Aires.
    • We also have a joint meeting with TEAS, PCE and CCAMP on common interest in YANG models.
  • WG Highlights:



NVO3 met on Monday (4-APR) at 14:00.

WG Highlights:

  • Planning to revise milestones with 2016 dates, aim for WG completion this year.
  • Called for volunteers to help organize interoperability-focused interim meetings culminating in a public demo.

WG Status:

  • No new RFCs since last meeting.
  • A couple documents survived WGLC with comments, to be followed-up by Chairs.
  • "Split NVE" control plane work underway in IEEE, following liaison from NVO3.


Meeting Thursday/14:00 - Quebracho A

WG Highlights:

  • OSPFv2 Segment Routing with multiple vendor and open source implementations is ready for WG Last Call.
  • OSPFv2 YANG model offers a full function OSPF model with multi-vendor participation.
  • OSPF TTZ Publication Requested as Experimental RFC
  • OSPFv3 Extended LSA implementations rumored
  • Come to meetings to here about interesting new work!!!

WG Status Summary:

  • Recent RFCs:
  • IESG Processing:
    • OSPF TTZ
    • OSPF S-BFD Discriminator
  • Drafts completed WG Last Call
    • OSPF 2-part Metric
    • OSPFv3 over IPv4



Meeting: Tuesday - 16:20-17:20 - Afternoon session II

WG Highlights:

  • Lots of productivity; since last IETF, six RFCs published, four drafts with the IESG, one that's completed WG LC. Thanks to Deborah, document shepherds, and authors.
  • Concentrating on dual homing protection, P2MP PWs, and Yang models.

WG Status Summary:

Links: Agenda WG Charter Minutes



  • Tuesday - 17:40-19:10 - Afternoon Session III (joint with TEAS,MPLS)
  • Wednesday - 14:00-16:00 - Afternoon session I

WG Highlights:

  • Stateful PCE base draft - almost ready to be forwarded to the IESG.
  • PCEP-over-TLS passed WG last call
  • Lots of new work items being brought to the WG
    • Service chaining
    • PCE as a central controller
    • Hierarchical-stateful / Hierarchical SDN
    • Virtual networks / ACTN

WG Status Summary:



Meeting Day/Time?: Wednesday, April 6th, 2016, 1000-1230

WG Highlights:

  • Published 4601bis pim-sm as Internet Standard
  • One draft about to be published and one in IETF last call
  • 5 other active WG drafts and many drafts to be considered for adoption
  • YANG models for pim and igmp/mld. Would like additional review from YANG experts, waiting for other models to completed.

Links: Agenda WG Charter Minutes


  • In Buenos Aires: Date: Tuesday, April 5, 2016 (ART).
  • Time: 16:20-17:20 - Tuesday Afternoon session II

WG Highlights:

*Active Internet Drafts


Meeting Thursday/10:00

  • IPv6 PA multi-homing and dest/source routing
  • IP FRR and microloop avoidance topics
  • Overlay OAM design team
  • Dataplane probes

Meeting Friday/10:00

  • YANG models
  • Routing Area YANG Architecture design team
  • Identifier Locator Addressing

WG Highlights:

  • IPv6 multi-homing with provider-assigned addressing: Work on dest/source routing in RTGWG had been motivated mainly by homenet. RTGWG got a request from v6ops to address the more general case of multi-homing medium-range networks. Discussion ongoing regarding requirements routing based on source prefix for an arbitrary destination prefix vs. only for the default destination prefix.
  • RTGWG has several YANG models. Looking for advice for YANG DT regarding impact of opstate and schema mount changes on those models.
  • Two WG drafts related to micro-loop avoidance are being implemented. We are incorporating experience from those implementations in the drafts.

WG Status Summary:

  • Dest/source routing



Meeting: 17:40-19:40 Monday Afternoon session III

WG Highlights:

  • NSH as one key document started WGLC
  • planning for a virtual interim after this IETF meeting to ensure WG progress

WG Status:



  • Session 1: Monday Afternoon session I
  • Session 2: Wednesday Afternoon session I

WG Highlights: unusual level of activity since last IETF - 2 drafts through wglc, publication requested for three others, one RFC published, good substantive reviews to BGPsec protocol)

WG Status Summary:



Meeting Day/Time: Tuesday, April 5, 2016, 14:00 - 16:00

WG Highlights:

  • Existing work
    • Segment Routing Conflict Resolution (long discussion this meeting)
    • Adoption call to start after -01 issued, next week
  • New (not currently chartered):
    • MCast, packet-optical, node protection, etc.
  • Short-term work plan:
    • Use case and related documents, with a goal of significant progress (completion?) by IETF-96
    • Architecture, MPLS instantiation, LDP interop

WG Status Summary:

Links: Agenda WG Charter Minutes



  • Regular Session: Monday - Morning Session I - 10:00-12:30
  • Joint Session with MPLS/PCE/CCAMP: Tuesday - Afternoon Session II - 17:40-19:10

WG Highlights:

  • YANG Models:
    • TE-Topology Data Model:
      • Focus on Transitional-Links and Inter-Layer-Locks.
    • RSVP/TE Data Models:
      • Focus on structure and relationship of various models.

WG Status Summary:



Trill 4/6/2016 10:00 - 14:00

*Trill is making great progress on standardizing Aids to scale and deploy TRILL

  • 1) Standardize OAM
  • 2) Active-Active at the TRILL edge
  • 3) Multi-destination frame reduction / Directory
  • 4) TRILL over Pseudowires and TRILL over IP
  • 5) Multi-level and Multi-topology
  • 6) Reduced Control Plane Protocol
  • 7) Security Analysis
  • 8) InteroperabiliTty? / Implementation Report

We have completed a lot of 1-3, and we have proposals for 1-6.

  • At IETF 95 we are talking about:

*2) Multi-topology / Multi-level

  • 3) TRILL Charter Revision, Jon Hudson
Last modified 4 years ago Last modified on Apr 6, 2016, 12:30:41 PM