Release Notes:

Context:

• Multiple extensions for logical inventory, optical layer, and QKD nodes

Device:

• Enhanced gNMI/OpenConfig driver to increase performance using libyang
• Optical NetConf driver now discovers underlying equipment ports and resources
• Optical NetConf driver provides support for transponders and multi-granular optical nodes
• New driver to manage QKD nodes
• Support to manage device's logical inventory

Optical Controller:

• Extended to support optical bands and lightpaths

NBI:

• Export hardware, L2 and L3 inventory of network devices through IETF Inventory YANG data model
• Added support for configuring Access Control Lists (ACLs) in network devices
• Added missing create/update/delete methods in the TFS API

WebUI:

• Added new sections and extensions to manage QKD services and applications
• Added new sections and extensions to manage optical resources
• New automatic converter of IETF slice JSON descriptors to TFS slice

Quantum Key Distribution Framework:

• New framework able to onboard and control QKD nodes, services and applications
• New QKD Application Registry able to manage services and applications
• Extensions on multiple components in support for QKD

Monitoring-Telemetry-Automation Framework:

• New scalable and extensible framework
• Data collection externalized to new Telemetry component
• Data analytics especialized to new Analytics component
• Analytics component supports Apache Spark and Dask as backends
• New KPI Descriptor and Value manager components
• New Automation component to manage the overall framework
• Automation component auto-activates telemetry collection of network equipment ports
• New QoS Profile component to facilitate management of constraints in ZSM-automated services

DLT:

• DLT component has been updated to expose the complete topology
• DLT gateway now works with HyperLedger Fabric v2.4+
• Chaincode for HyperLedger Fabric v2.4+ is provided

Others:

• Stabilized use of MicroK8s v1.29
• Automatic configuration of microservices with LinkerD if the later is installed
• Released a new generic database management framework to facilitater creation of per-component databases
• Kafka is deployed as an alternative to NATS
• Multiple enhanements in CI/CD automated tests
• New integration tests running in CI/CD pipeline
• Updated versions of multiple dependencies
• Multiple smaller enhancements and bug fixes

Release notes:

Management of network topologies:

• Support to track total and used link capacities.
• BGP-LS speaker to discover devices and links.
• Discovery and retrieval of device inventory.

Control and management of optical networks:

• New Optical Controller component to manage configurations of Transceivers, ROADMs, and Multi-granular Optical Nodes.
• New service handlers to interface with the new Optical Controller component.

Traffic forecasting capacities:

• New component to forecast capacities on links and entire topologies.
• Integration of forecaster component with path computation component to compute capacity-aware paths.

Interfacing with external systems through NBIs:

• Enhanced validation of incoming requests through libyang.
• New ETSI MEC Bandwidth Management API connector to accept requests from end-user applications.
• New IETF L3-VPN Service Delivery connector to dispatch L3 VPN requests from OSS/BSS systems.
• New IETF Network Topology connector to expose the TeraFlowSDN topology details to OSS/BSS systems.
• Extended TFS API to export snapshots of the context database and allow creation/update/delete of services.

Control and management of underlying network equipoment:

• New driver based on IETF ACTN to manage OSU Tunnels and Ethernet Transport Services.
• New driver to interface with underlying TeraFlowSDN controller acting as an Optical SDN controller.
• Extended NetConf/OpenConfig driver to support new vendors (Juniper).
• Extend IETF L2VPN SBI driver to discover and import underlying IP topologies.

End-to-end service orchestration:

• New End-to-end Orchestrator component to manage underlying IP and optical SDN controllers.
• New service handler to interface with the new End-to-end Orchestrator component.

Web user interface:

• New Service creation user interface.
• New interfaces to navigate through the network equipment inventory.
• Multiple web user interface enhancements to facilitate operational activities.

Others:

• Automated execution of end-to-end integration tests in the CI/CD pipeline.
• Extended the set of automated unitary and integration tests.
• Multiple bug fixes, code refactorings, enhanced error handlings, and performance improvements.
• Updated database schemas and protocol buffer definitions.
• Improved deployment scripts.
• Improved code and wiki documentation.

Release notes:

High Performance SDN Framework:

• Enabled scalability of the TeraFlowSDN microservice.
• Added LinkerD Service Mesh for advanced inter-microservice traffic distribution.
• Enabled observability of the microservices’ performance.
• Enabled horizontal auto-scaling of the microservices.

Hardware and L0/L3 Multi-Layer Integration:

• Added support for management of complex multi-layer multi-technology services.
• Added a load generation tool for performance assessment with a graphical WebUI.
• Improved XR driver to support multi-layer services.
• Extended OpenConfig/NetConf driver support for L2/L3 packet devices and ACLs.
• Implemented new OpenConfig/gNMI driver to configure packet router interfaces and static rules. The gNMI driver features telemetry streaming.
• Improved support for P4 whitebox management.

SDN Automation:

• Refined the monitoring framework with additional KPIs.
• Enabled metrics collection and auto-scaling of the Policy component.
• Extended the WebUI to expose the configured policies.

Transport Network Slicing and Multi-Tenancy:

• Improved multi-tenancy support.
• Implemented support for Slice Grouping.
• Implemented IETF Slice NBI.

Cyberthreat Analysis and Protection:

• Migrated the CyberSecurity frameworks to TeraFlowSDN Release 2.1.
• Added horizontal auto-scaling capacities to the optical and L3 cybersecurity frameworks.
• Updated the AI/ML models to improve threat detection effectivity.
• Added Grafana dashboards to monitor the CyberSecurity frameworks.

Distributed Ledger and Smart Contracts:

• Added a Distributed Ledger Technology performance assessment tool.

Interworking Across Beyond 5G Networks:

• Migrated Interdomain component and demonstrations OECC/PSC’22 and NFV-SDN’22 to TeraFlow Release 2.1.

Others:

• Multiple bug fixes and performance improvements.
• Updated database schemas and protocol buffers definitions.
• Improved deployment scripts.
• Improved code documentation.

Release notes:

Common:

• Defined new automated and configurable deployment scripts

Protocol buffers:

• Added support for monitoring subscriptions and alarms
• Added support for specific service/slice constraints
• Added support for specific ACL config rules
• Added support for policy rules
• Added support for inventory
• Added support for path computation
• Added support for different DLT gateways
• Added support to control internal load generators

Automation component:

• Implemented new methods for zero-touch provisioning of devices

Compute component:

• Added support for IETF L2VPN requests with SLAs
• Added implementation of Slice Management NBI
• Improved NBI for service management using ETSI OSM

Context component:

• Rewritten to enable replication
• Added support for CockroachDB database
• Added support for NATS message broker
• Added support for persisting slices
• Added support for persisting specific constraints
• Added support for persisting specific config rules
• Added support for persisting policy rules

Cybersecurity framework:

• Updated Centralized Attach Detector with Optical and Packet layers
• Updated Centralized Attach Detector to receive notifications of service changes
• Developed new communication channels between modules
• Added support for supervised learning algorithms using Artificial Neural Networks
• Added support for unsupervised learning using DBSCAN algorithms
• Evolution of Attack Mitigator and integrated with Service component

Device component:

• Rewritten to reduce statefulness
• Improved Emulated Driver to support all kind of devices
• Improved OpenConfig Driver
• Added support for L2VPNs in OpenConfig Driver
• Added support for ACLs in OpenConfig Driver
• Improved support for P4 Driver and rule configuration
• Improved support for Transport API
• Added support for Microwave Driver
• Added support for Infinera XR Constellation vis Infinera Pluggable Manager (IPM) controller
• General code improvements

Distributed Ledger Technology (DLT) component:

• First functional implementation
• Added support for multiple DLT gateways
• Implemented gateways for HyperLedger Fabric
• Implemented DLT connector interfacing with the rest of TeraFlowSDN components
• Implemented support for subscribing to DLT events

Interdomain component:

• First functional implementation supporting direct TeraFlowSDN-to-TeraFlowSDN communication
• Implemented Topology Abstraction logic
• Added support for TeraFlowSDN-to-TeraFlowSDN communication through DLT

Load Generation tool:

• Implemented new load-generation tool for end-to-end testing and stressing the components

Monitoring component:

• Implemented support for subscriptions and alarms
• Migrated to scalable QuestDB time-series database

PathComp component:

• Implemented new scalable path computation component
• Implemented basic Shortest Path and k-Shortest Path algorithms
• Implemented k-Disjoint Paths algorithm

Policy component:

• Revised and implemented new Event-Condition-Action (ECA) policy model
• Added support for device and service specific policy rules

Service component:

• Rewritten to reduce statefulness
• Implemented new task scheduler to support dependencies in multi-layer scenarios
• Added L2-Emulated service handler
• Added L2-OpenConfig service handler
• Added L3-OpenConfig service handler with ACLs
• Added L2-P4 service handler
• Added microwave service handler
• Generalized TAPI service handler to support XR constellation driver

Slice component:

• Initial functional version of the slice component
• Alignment of Slice component with Compute component

First release of the TeraFlow OS SDN Controller