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Detnet Status Pages

Deterministic Networking (Active WG)
Rtg Area: Alvaro Retana, Martin Vigoureux, John Scudder | 2015-Oct-05 —  

2021-03-22 charter

Deterministic Networking (detnet)


 Current Status: Active

     János Farkas <janos.farkas@ericsson.com>
     Lou Berger <lberger@labn.net>

 Routing Area Directors:
     Alvaro Retana <aretana.ietf@gmail.com>
     John Scudder <jgs@juniper.net>
     Martin Vigoureux <martin.vigoureux@nokia.com>

 Routing Area Advisor:
     John Scudder <jgs@juniper.net>

 Tech Advisor:
     David Black <david.black@dell.com>

     Ethan Grossman <ethan@ieee.org>

 Mailing Lists:
     General Discussion: detnet@ietf.org
     To Subscribe:       https://www.ietf.org/mailman/listinfo/detnet
     Archive:            https://mailarchive.ietf.org/arch/browse/detnet/

Description of Working Group:

  The Deterministic Networking (DetNet) Working Group focuses on deterministic data paths that operate over Layer 2 bridged and Layer 3 routed segments, where such paths can provide bounds on latency, loss, and packet delay variation (jitter), and high reliability. The Working Group addresses Layer 3 aspects in support of applications requiring deterministic networking. The Working Group collaborates with IEEE802.1 Time-Sensitive Networking (TSN), which is responsible for Layer 2 operations, to define a common architecture for both Layer 2 and Layer 3. Example applications for deterministic networks include professional and home audio/video, multimedia in transportation, engine control systems, and other general industrial and vehicular applications being considered by the IEEE 802.1 TSN Task Group.

  The Working Group will initially focus on solutions for networks that are under a single administrative control or within a closed group of administrative control; these include not only campus-wide networks but also can include private WANs. The DetNet WG will not spend energy on solutions for large groups of domains such as the Internet.

  The Working Group is responsible for the overall DetNet architecture and
  DetNet-specific specifications that encompasses the data plane, OAM
  (Operations, Administration, and Maintenance), time synchronization,
  management, control, and security aspects which are required to enable a
  multi-hop path, and forwarding along the path, with the deterministic
  properties of controlled latency, low packet loss, low packet delay
  variation, and high reliability. The work applies to point-to-point
  (unicast) and point-to-multipoint (multicast) flows which can be
  characterized in a manner that allows the network to 1) reserve the
  appropriate resources for the flows in advance, and 2) release/reuse the
  resources when they are no longer required. The work covers the
  characterization of flows, the encapsulation of frames, the required
  forwarding behaviors, as well as the state that may need to be
  established in intermediate nodes. Layer 3 data plane technologies that
  can be used include: IP and MPLS, and Layer 2 encapsulations that run
  over IP and/or MPLS, such as pseudowires and GRE.

  The Working Group will document which deployment environments and types
  of topologies are within (or outside) the scope of the DetNet
  architecture. This work focuses on the data plane aspects and is
  independent from any path setup protocol or mechanism. The Working Group
  will also document DetNet Controller Plane approaches that reuse
  existing IETF solutions, such as Path Computation Element (PCE), and
  identify the Working Group responsible for any extensions needed to
  support DetNet. Documents produced by the Working Group will be
  compatible with the work done in IEEE802.1 TSN and other IETF Working
  Groups.  The Working Group's scope explicitly excludes modifications of
  transport protocols, OAM, Layer 3 forwarding, and encapsulations, but
  it may discuss requirements for such modifications and the work will be
  done in the Working Group responsible for the technology.

  DetNet is chartered to work in the following areas:

  Overall architecture: This work encompasses the data plane, OAM,
  time synchronization, management, control, and security aspects.

  Data plane: This work will document how to use IP and/or MPLS, and
  related OAM, to support a data plane method of flow identification
  and packet forwarding over Layer 3. Other IETF defined data plane
  technologies may also be used.

  Controller Plane: The DetNet Controller Plane is defined in RFC 8655
  as "the aggregation of the Control and Management Planes". This work
  will document how to use IETF control plane solutions to support DetNet,
  including the identification of any gaps in existing solutions. Any
  modification to Controller Plane protocols to address identified gaps
  should be carried out in their associated Working Groups, but may be done
  in DetNet if agreed to by the relevant Working Group chairs and responsible
  Area Directors.

  Data flow information model: This work will identify the information
  needed for flow establishment and control and be used by reservation
  protocols and YANG data models. The work will be independent from
  the protocol(s) used to control the flows (e.g. YANG+NETCONF/RESTCONF,

  YANG models: This work will document device and link capabilities
  (feature support) and resources (e.g. buffers, bandwidth) for use in
  device configuration and status reporting. Such information may also
  be used when advertising the deterministic network elements to a
  control plane. Control plane related information will be independent
  from the protocol(s) which may be used to advertise this information
  (e.g. IS-IS or GMPLS extensions). Any new YANG models will be
  coordinated with the Working Groups that define any base models that
  are to be augmented.

  As needed, vertical requirements: This effort will detail the
  requirements for deterministic networks in various industries that
  have previously not been documented and cannot be supported using
  defined DetNet solutions.

  To investigate whether existing data plane encryption mechanisms can
  be applied, possibly opportunistically, to improve security and

  The Working Group coordinates with other relevant IETF Working Groups,
  including CCAMP, IPPM, LSR, PCE, PALS, TEAS, TSVWG, RAW, and
  6TiSCH. As the work progresses, requirements may be provided to the
  responsible Working Group, e.g. PCE, TEAS, and CCAMP, with DetNet acting
  as a focal point to maintain the consistency of the overall architecture
  and related solutions. The WG will liaise with appropriate groups in
  IEEE and other Standards Development Organizations (SDOs).

Goals and Milestones:
  Mar 2021 - Submit first OAM  document for publication
  Apr 2021 - Submit YANG model (Standards Track)
  May 2021 - Submit controller plane framework
  Jun 2021 - Submit DetNet IP OAM document
  Done     - Finalize use cases (informational)
  Done     - Submit architecture (Standards Track)
  Done     - WG adoption of YANG model
  Done     - Finalize problem statement (informational)
  Done     - Submit data plane specification (Standards Track)
  Done     - Initial OAM WG document
  Done     - Submit security considerations document for publications
  Done     - Submit data flow information model (informational)
  Done     - Adopt controller plane framework
  Done     - Submit TSN data plane documents (Standards track)
  Done     - Adopt DetNet IP OAM document

All charter page changes, including changes to draft-list, rfc-list and milestones:

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