The Deterministic Networking (DetNet) Working Group will focus on deterministic data paths that operate over Layer 2 Bridged and Layer 3 routed segments, where such paths can provide bounded latency, loss and packet delay variation (jitter). The Working Group will address Layer 3 aspects in support of applications requiring deterministic networking. The group will collaborate with IEEE802.1 TSN, which is responsible for Layer 2 operations, to define a common architecture to support IEEE802.1 TSN applications. For the common architecture, a number of elements such as the IEEE802.1 TSN host operation should be agnostic to the choice of network used for the connectivity. The Working Group will specify an overall architecture that encompasses the data plane, OAM, management, control, and security aspects that are required to enable a multi-hop path, and forwarding along that path, with the deterministic properties of controlled latency, low packet loss, low packet delay variation, and high reliability. The work will apply to flows that 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 will cover 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; it will not include end-to-end considerations such as transport protocols, modification of OAM, L3 forwarding and encapsulations, or control plane protocols. Candidate Layer 3 data plane technologies that may be used, without modification, include: IPv4, IPv6, MPLS. As part of the overall architecture work, the working group will document which deployment environments and types of topologies that 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 data plane will be compatible with the work done in IEEE802.1 TSN. DetNet is chartered to work in the following areas: * Overall architecture: This work encompasses the data plane, OAM, management, control, and security aspects. * Data plane: This work will document a data plane method of flow identification and packet forwarding over Layer 3. * Data flow information model: This work will identify the information needed for flow establishment and control and be used by a reservation protocol or by YANG data models. The work will be independent from the protocol(s) used to control the flows (e.g. YANG+NETCONF/RESTCONF, PCEP or GMPLS). * Identification of additional YANG augmentations: 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. The work will be independent from the protocol(s) that may be used to advertise this information (e.g. IS-IS or GMPLS extensions). Any YANG work will be coordinated with the working groups that define the base models. * As needed, problem statement: This effort will establish the deployment environment and deterministic network requirements. * As needed, vertical requirements: This effort will detail the requirements for deterministic networks in various industries, for example, professional audio, electrical utilities, building automation systems, wireless for industrial applications. The WG will coordinate with other relevant IETF Working Groups, including CCAMP, PCE, PALS, TEAS, OSPF, IS-IS, TSVWG, and 6TisSCH. 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. The WG will liaise with appropriate groups in IEEE and other Standards Development Organizations (SDOs).