NFVRG IETF 94 Yokohama

Wednesday, 4 November 2015 Wednesday Morning Session (Room 502)

0900 – 1130

Chairs:  Diego Lopez (diego.r.lopez@telefonica.com)

                   Ramki Krishnan (ramki_krishnan@dell.com)

Note takers: Pedro Aranda & Philip Eardley

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Welcome and administrative matters

Presenter: Ramki Krishnan

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-19.pdf

- Mailing list: https://www.irtf.org/mailman/listinfo/nfvrg

- Web site: http://trac.tools.ietf.org/group/irtf/trac/wiki/nfvrg

- Proceedings: https://www.ietf.org/proceedings/93/nfvrg.html

- Pedro Aranda and Philip Eardley for notes. Diego acted as jabber scribe

- List of NFVRG and NFV research-related events

- Interim meeting. Agenda still under development. It will soon be announced on the list

Structuring Live NFVRG documents

Presenter: Diego Lopez

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-14.pdf

- 19 live drafts, 3 adopted, more to come

- Organize them, because 19 to RFC  clash with normal practices

- Shared in the list, mostly positive feedback

- Identify document classes and how to proceed with them

- One document per interest area and evolve them to RFC

- Discussion

o Carlos Bernardos: Agree with focusing but structure shouldn’t restrict that much

§ No problem with having more than 4 documents alive but moving beyond draft to RFC, example of gap analysis

o Qi Quwang: Visibility and orchestration… visibility of what?

§ Services and functions

o Dirk Kutscher: We should figure out what NFV has to do with evolution of internet technologies. E.g. service chaining, performance

§ Could fit into second suggested new working direction

Update on Existing Drafts

Policy Architecture and Framework for NFV Infrastructures

draft-irtf-nfvrg-nfv-policy-arch

Presenter: Norival Figueira

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-1.pdf

- Discussion

o Diego: SUPA WG on policy management has just started. It needs stretching use cases. This could be ideal for them

Resource Management in Service Chaining

draft-irtf-nfvrg-resource-management-service-chain

Presenter: Seungik Lee

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-5.pdf

- Discussion

o Phillip Eardley: Timescales for optimization? (questions misunderstood)

§ Two different strategies placement and ???… optimize the performance for resource usage in service chains 

§ Chair feedback: Timescale needs to be addressed in the draft

o Steven Wright: You conflated terms VM and VNFC

Verification of NFV Services: Problem Statement and Challenges

draft-irtf-nfvrg-service-verification

Presenter: Seungik Lee

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-2.pdf

- Discussion

o Ramki: Merger opportunities?

§ No

Gap Analysis on Network Virtualization Activities

draft-bernardos-nfvrg-gaps-network-virtualization

Presenter: Carlos Bernardos

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-9.pdf

- On request for adoption as non-permanent document

- Discussion

o Diego: Non-permanent document but contributes to the core of the WG

Towards recursive virtualization and programming for network and cloud resources

draft-unify-nfvrg-recursive-programming

Presenter: Robert Szabo

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-17.pdf

- On request for adoption (area must be identified)

- Discussion

o Steven Wright: Recursion is important design goal and common API is a piece of that. Better to think of model-driven architecture than API.

§ Yes, more generic view is possible

o Chairs: Discuss whether ”recursion” is the right term. Terminology on “joint”, “recursive” (should “uniform” or “hierarchical” be used?)

o Diego

§ Security issues through the “joint API"

§ YANG everywhere? 

§ Suggest to bring it to ETSI NFV as an input for the IM/DM discussion

VNF Pool Orchestration for Automated Resiliency in Service Chains

draft-bernini-nfvrg-vnf-orchestration

Presenter: Pedro Aranda

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-4.pdf

- VNF pool as a key concept for orchestration and resource management in VNF chains

- Discussion

o Nicolas Bouthors: Do pools include physical resources

§ Manage pools of VNFs in transparent way – nothing to do with controlling legacy. Not applicable to physical infrastructure

o Steven Wright: VNF pool is about robustness. How is this reflected in e2e service description?

§ Included as part of description

DevOps for software-defined telecom Infrastructures

draft-unify-nfvrg-devops

Presenter: Catalin Meirosu

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-12.pdf

- On request for adoption (area must be identified)

o Very few hands shown when Steven Wright asked how many read it

- Suggest to bring ideas to possible DevOps application to I2NSF

- Discussion

o Diego: DevOps should be one of the hot topics affecting not the arch, but for operations

o Linda Dunbar: Read the draft, didn’t understand how relates to NFV

§ It covers how people use it in large data centers, we extend to smaller set-ups and identify topics for research.

o Steven Wright: Yes, it’s about a problem statement. NFV is about chunks of software & continuous deployment. This is a different timescale to traditional software in telecoms network which is embedded in hardware. So testing and continuous integration

o Diego: Look at I2NFS, maybe DevOps principles could be applied there

Joint draft on Resource Orchestration

Presenter: Kostas Pentikousis

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-13.pdf

- Merge of unify-nfvrg-challenges and felix-nfvrg-recursive-orchestration

- Proposing a non-permanent document and interaction with other RGs/WGs

o To be at the datatracker during the coming 18-24 months

o Asking for additional contributions

- Use it as an example of what a non-permanent document should be

- Discussion

o Philip Eardley: Benefits across admin domains?

§ Resources across admin domains can help. Use case in catastrophes: rolling blackouts when energy shortage. Coordinating this information with the orchestration to anticipate where to place VNFs

New Proposed Drafts

An Analysis of Container-based Platforms for NFV

draft-natarajan-nfvrg-containers-for-nfv

Presenter: Ramki Krishnan

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-11.pdf

- Discussion

o Dirk Kutscher: Doc is a nice start

o Nicolas Bouthors: Need to adapt network when container appears, people are playing with dynamically binding containers to ports (pre-configure) Does this bring issues?

§ Security isolation is a key aspect needing research. Need to consider hybrid as VM gives isolation

Lightning talks introducing new work

draft-rorosz-nfvrg-vbaas (Robert Szabo)

draft-cai-nfvrg-recursive-monitor (Catalin Meirosu)

draft-bagnulo-nfvrg-topology (Marcelo Bagnulo)

draft-mlk-nfvrg-nfv-reliability-using-cots (Ramki Krishnan)

Slides:

https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-18.pdf

https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-7.pdf

https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-16.pdf

https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-3.pdf

- Discussion (all questions on Marcelo’s presentation on topologies)

o Charles Eckel: Do not understand why traffic will be different

§ Current traffic patterns in DC is between servers (N-S << E-W traffics) In an NFV pop, the traffic that traverses the PoP is the one that makes the money. Thus O(N.S) == O(E.W)

o Steven Wright: Interesting topic.. two aspects. ETSI documents. placements in a core location make different traffic patterns that placing at an edge PoP. Related project in ONOS

o Diego: nice discussion for Heidelberg

o Kostas: Editorial. Not a problem statement yet, more considerations document. Design considerations. Retitle / collaboration: some can go to the challenges

§ Here for input and possible ways forward

o David: Question is whether we want to reuse current PoPs or create a new arch for NFVI

Open-source and project updates

SFC architecture model using OpenFlow comparing using NSH

Presenter: Yuri Sekiya

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-15.pdf

- Discussion

o Uri Elzur: This discussion belongs in the SFC. NSH is data plane & SFC is control plane

o Dirk Kutscher: Not sure if the comparison is fair, but technical comparison

o Charles Eckel: This topic was part of the Hackathon. Look at github

The SUPERFLUIDITY project

Presenter: Pedro Aranda

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-8.pdf

- Discussion

o Nicolas Bouthors: What design pattern to simplify overall architecture and design?

§ Aim is VNF components that are tiny and very flexible

A DevOps Toolkit for Networks

Presenter: Catalin Meirosu

Slides: https://www.ietf.org/proceedings/94/slides/slides-94-nfvrg-6.pdf

- Discussion

o Jamal Hadi: What would be transport underneath.

§ 0mq

§ What is this?

§ Tcp, udp and inter-process comms.

§ Scaling and robustness issues, are you fixing?

o Ramki: TPG would be a good one for service verification