Minutes interim-2020-opsawg-01: Tue 07:00
minutes-interim-2020-opsawg-01-202004070700-00

What: OpsAWG / OpsArea 107 Virtual Interim
When: 11:00 - 13:30 UTC Tuesday, April 7, 2020
Where: Webex

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OpsAWG Section
==============

Administrivia  - scribes, minutes, rules, introduction of our new AD, etc.
Tianran / Joe
15 minutes

(reordered due to mic issues for Qin)
A Layer 3 VPN Network YANG Model
Oscar González de Dios
Draft:
https://datatracker.ietf.org/doc/draft-ietf-opsawg-l3sm-l3nm/
10 minutes

Joe: Please take issues from GitHub to the mailing list to get full WG
visibility Oscar: Will do after the meeting

TODO: YANG doctor review

A Framework for Automating Service and Network Management with YANG
Qin Wu
Draft:
https://datatracker.ietf.org/doc/draft-ietf-opsawg-model-automation-framework
10 minutes
Joe: suggest to bring up new example to the list if there is.

A Layer 2 VPN Network Yang Model
Oscar González de Dios
Draft:
https://datatracker.ietf.org/doc/draft-barguil-opsawg-l2sm-l2nm
5 minutes

Q1: open issues for eVPN support. Is eVPN not supported? Or just some cases?
A: started to add eVPN support. Now supported.

Zhenbin Li: Is EVPN supported in this draft at all or just some cases?
Oscar: Support has been added in the last version; work required to see about
additional properties for EVPN Zhenbin Li: L2VPN is complex; can hierarchical
VPN be supported in this SM? Oscar: Yes, but more review is needed to see if it
is fully supportable Zhenbin Li: Inter-AS scenario? Oscar: Perhaps Samir
Barguil: Inter-AS is a use case to support; still enhancing the set of network
parameters Italo: CCAMP working group has some overlapping work; client signal
model (https://tools.ietf.org/html/draft-ietf-ccamp-client-signal-yang) Oscar:
This model is pure transport; more research to be done Rob Wilton: How much
work is in the general area for network models Oscar: We feel the scope is
well-defined now Joe: This may change in the future if there is a proliferation
of services

07:49
A YANG Model for User-Network Interface (UNI) Topologies
Med Boucadair
Draft:
https://datatracker.ietf.org/doc/draft-ogondio-opsawg-uni-topology
5 minutes

Italo Busi: CCAMP has a similar draft; need to know the UNIs; need to know the
capabilities of the UNIs; UNI discovery is generic, but capabilities are
specific Med: Let's work together. Tianran: What is the type of this model?
Med: Topology model; augments network model Tianran: Who will consume this
model Med: L3SM, L3NM can consume this model; this is a network controller
model Oscar Gonzalez de Dios: This is a topology view that is exposed from the
network controller layer Tianran: Is this is a new type of service abstraction
to be described by Qin's document Qin Wu: UNI topology model is a network
model; we can reflect this in the network automation framework draft Rob
Wilton: Compliments the L2NM and L3NM; does this augment both or does there
need to be a generic underlying model Med:This is described in the draft
already Rob: Need to study this more to see how everything fits together

MUD (D)TLS profiles for IoT Devices
Tirumal Reddy
Draft:
https://datatracker.ietf.org/doc/draft-reddy-opsawg-mud-tls
5 minutes

Tianran: Are the 8520 security considerations enough?
Tiru: We are simply extending on that model
Tianran: Does MUD provide any security mechanisms itself
Tiru:
Eliot Lear: Are the security considerations of 8520 are sufficient for this
draft? Tianran: In MUD there are already security considerations; does it
already provide a security mechanism or just the requirements? Eliot: Tiru's
draft relies on the underlying MUD mechanisms but does not introduce new
security mechanisms for discovering the URL

TODO: Raise a WG list question on what to do with collective MUD work

MUD and SUIT, Operational considerations for MUD, MUD and quarantined access to
firmware Michael Richardson Drafts:
https://datatracker.ietf.org/doc/draft-richardson-opsawg-mud-acceptable-urls

https://datatracker.ietf.org/doc/draft-richardson-opsawg-mud-iot-dns-considerations

Eliot: Working occuring at ICANN (CIRA), DNS for IoT.

    Policy enforcement point is not well bound to the name->IP mapping.

    Mentions that DHCP options can been parameterized in YANG.

Tiru: we have been using domain names to do fingerprinting of devices.

    IoT need to move to using DoT and DoH for privacy reasons.

    How to discover the network provided DoT/DoH servers.

https://datatracker.ietf.org/doc/draft-richardson-shg-mud-quarantined-access
15 minutes
Tiru: seems obvious and the right thing to do?
ended at: 8:32

Sampled Traffic Streaming
Andrew Gray
Draft:
https://datatracker.ietf.org/doc/draft-gray-sampled-streaming
10 minutes

All the way down to changes since -02.
MCR: suggests that there are synergies with pcap-ng, to either encapsulate
these formats to disk, or to use pcap-ng as the on-the-wire format. A request
was made to have an IPFIX example. A question about YANG doctor review, or
looking for YANG-fu co-author?  Author wants to do -04 first.

In-situ Flow Information Telemetry Framework
Haoyu Song
Draft:
https://datatracker.ietf.org/doc/draft-song-opsawg-ifit-framework/
10 minutes

Discussion between Frank Brockners and Haoyu and Zhenbin Li on terminology.
While the word IFIT has been removed, the underlying idea about specialized
components (head node, end node, etc.) remain Why do we need a new name?

Haoyu and Zhenbin comment that this is a new framework and thus needs a new name
Frank comments that this uses existing components already defined in other
areas (e.g., IOAM)

Tianran: It's not just classificaiton of existing data plane technologies. It's
more about the higher level framework on orchistration.

Ultimately, the authors asked for pointed comments as to their modifications. 
This needs to be sorted out on the WG mailing list as we cannot solve this on
the call.

Service Assurance for Intent-based Networking Architecture and YANG modules
Benoit Claise
Drafts:
https://datatracker.ietf.org/doc/draft-claise-opsawg-service-assurance-architecture
https://datatracker.ietf.org/doc/draft-claise-opsawg-service-assurance-yang
15 minutes

Sue Hares asked if the IS-IS depicted in the slides is a formal part of the
document Joe: No, this is an example of an underlying subservice in this
service instance.  Other services may use a different routing protocol Joe: The
spec is flexible to allow for different types of subservices

YANG Data Models for the IP Flow Information Export (IPFIX) Protocol, Packet
Sampling (PSAMP) Protocol, and Bulk Data Export Joey Boyd Draft:
https://datatracker.ietf.org/doc/draft-boydseda-ipfix-psamp-bulk-data-yang-model/
20 minutes

This is currently an AD-sponsored document (Ignas had it, now it will pass from
Warren to Rob) Rob: We should see if opsawg wants to pick up this work (adopt
it) and if so, hopefully it can progress quickly Rob: If the WG doesn't want
it, then it will remain AD-sponsored Rob: Because of the obsolescence issue, it
would be best if the WG taks it

TODO: Call for adoption

===

We ran out of time for these extra presentations.  They can have first crack at
a non-WG slot for IETF 108.

Active-Scanning profiles for IoT devices
Jie Yang
Draft:
https://datatracker.ietf.org/doc/draft-yang-opsawg-iot-devices-active-scanning/
5 minutes

Export of MPLS-SR Label Type Information in IPFIX
Thomas Graf
Draft:
https://datatracker.ietf.org/doc/draft-tgraf-ipfix-mpls-sr-label
5 minutes

OpsArea Section
===============

Administrivia and Introduction
Warren / Rob

Warren introduced Rob Wilton as the new Ops and Mgmt Area Director

Rob has spent over 20 years for Cisco as a software engineer in the SP business
unit Background in SP OS focusing on L2 tech like VLANs Recently focused on
manageability issues and YANG Contributes at the IETF on YANG including NMDA
and YANG versioning Vision: see IETF finish device-level YANG modules; interest
in service and network YANG models and how they map to the devices; interest in
service-level models in other SDOs and how they map to device and network
models; interesting in lifecycle monitoring

Open Mic

No questions for open mic

--------------------------------------------------------------------------

Blue Sheet
webex has 34 participants
jabber has 8 participants

    Name                                         Affiliation

    Tianran Zhou                             Huawei

    Warren Kumari      Google

    Mohamed Boucadair                      Orange

    Qin Wu                                         Huawei

    Michael Richardson, Sandelman Software Works

    Bo Wu                                  Huawei

    William Lupton                     Broadband Forum

    Thomas Graf                      Swisscom

    Matthias Arnold                  Swisscom

    Erez Segev                      ECI Telecom

    Simon Leinen                    SWITCH

    Cathy Aronson, ARIN

    Andrew Gray                  Charter Communications

    Yuichi Takita                     SECOM

    Dhruv Dhody                   Huawei-India

    Joey Boyd                ADTRAN

    Oscar Gonzalez de Dios    Telefonica

    Éric Vyncke   Cisco

    Laurent Ciavaglia Nokia (as Network Management Research Group)

    Joseph Clarke                 Cisco

    Frank Brockners

    Haoyu Song

    Italo Busi, Huawei

    Juergen Schoenwalder

    Lucia Olivia, Telefonica

    Med

    Mudumbai Ranganathan

    Samier Barguil Telefonica

    Paolo Lucente

    Philip Eardley

    Robert Wilton, Cisco

    Tiru Reddy Konda

    y00468095 (Yangjie?)

    Yali Wang，    Huawei

    Zhenbin Li

    Kyle Rose

    Miao Fuyou

    Yoshifumi Atarashi

    Susan Hares

    Carsten Bormann, TZI

    Guangying zheng

    Benoit Claise, Cisco

    Eliot Lear, Cisco

    Frank Brockners, Cisco

    Miao Fuyou, Huawei

    Luis M. Contreras, Telefonica

    Wei Pan, Huawei

    Yunan, Huawei

    Sergio Belotti          Nokia