Open vSwitch Database (OVSDB)

Open vSwitch Database (OVSDB)
Name	Open vSwitch Database
Operating system	Cross-platform
Genre	Database, Network management
License	Open-source

Open vSwitch Database (OVSDB) Open vSwitch Database (OVSDB) is a management database protocol and schema used to configure and monitor virtual switch instances and networking components. It provides a centralized schema-driven repository for runtime and persistent configuration commonly used with virtual networking projects and infrastructure platforms. OVSDB is widely adopted across virtualization and cloud projects and integrated with controller, orchestration, and hypervisor ecosystems.

Overview

OVSDB was designed to accompany virtual switch implementations and control-plane software, and it is commonly used alongside projects such as Xen Project, KVM, QEMU, Linux Foundation, OpenStack, Kubernetes, Red Hat, Canonical (company), VMware, Intel Corporation, and NVIDIA. The database model maps switch concepts to tables and rows for consumption by systems like OpenDaylight, ONOS (SDN controller), Ryu (software), Netconf, RESTCONF, and vendor controllers from Cisco Systems, Arista Networks, and Juniper Networks. OVSDB supports both in-memory runtime state and durable configuration, facilitating integration with configuration management systems such as Ansible (software), Puppet (software), Chef (software), and SaltStack.

Architecture and Data Model

The OVSDB architecture separates schema, server, and client roles and is implemented in projects by mapping network entities to tables, columns, and rows. It defines a JSON-based schema influenced by work from organizations like IETF, Open Networking Foundation, IEEE, The Linux Foundation, Cloud Native Computing Foundation, European Telecommunications Standards Institute, and Open Source Initiative. The data model represents bridges, ports, interfaces, managers, and quality-of-service elements as relational structures, similar to modeling approaches used in ITU-T and ISO/IEC standards. Implementations commonly persist data in backend stores and expose an RPC interface comparable to designs in etcd, Consul (software), and Apache ZooKeeper.

Protocol and RPC Operations

OVSDB uses a JSON-RPC style protocol with operations for transactions, monitoring, and schema discovery; the protocol has parallels with remote procedure frameworks used by JSON-RPC 2.0 adopters and tools from HashiCorp, Mozilla Foundation, and Google LLC. Core operations include transactions, monitors, inserts, updates, deletes, and conditional mutations; these operations enable controllers like OpenDaylight and orchestration tools such as Kubernetes and OpenStack Neutron to coordinate state. Transport layers span local Unix sockets, TCP, and TLS, with authentication models echoing mechanisms from X.509, OAuth 2.0, and Kerberos. The RPC semantics are similar to those in distributed control systems produced by Facebook, Amazon Web Services, and Microsoft Corporation.

Use Cases and Integrations

OVSDB is used to configure software switches, hardware offloads, and virtual network functions across infrastructure stacks by projects and vendors including OpenStack, Kubernetes, CloudStack, Mirantis, Red Hat, VMware NSX, NVIDIA Cumulus, Broadcom Inc., and Mellanox Technologies. Common use cases include dynamic tunnel management for protocols like VXLAN, GRE, and Geneve; QoS shaping interoperable with standards from IETF; integration with orchestration systems from Ansible, Terraform, and Jenkins (software); and telemetry export to systems such as Prometheus, Grafana, and Telegraf. OVSDB also appears in edge and NFV deployments affiliated with ETSI NFV projects and academic research from institutions like MIT, Stanford University, and UC Berkeley.

Administration and Management

Administration tasks include schema upgrades, backup and restore of configuration, runtime inspection, and high-availability management, often performed by tooling produced by Red Hat, Canonical (company), SUSE, VMware, and community utilities from Open vSwitch (project). Operators use CLI and GUI tools, integration with Nagios, Zabbix, and cloud dashboards from OpenStack Horizon and Kubernetes Dashboard for monitoring. High-availability patterns borrow concepts from distributed coordination systems such as Apache ZooKeeper and cloud control planes from Google Cloud Platform and Amazon Web Services.

Security and Access Control

Security considerations address authentication, authorization, transport encryption, and auditability, using approaches compatible with TLS, X.509, Kerberos, and identity providers like Keycloak. Role-based access and policy enforcement integrate with platforms such as OpenStack Keystone, OAuth 2.0 providers, and enterprise directories including Active Directory. Network isolation and multitenancy strategies align with models from NFV and cloud providers like Microsoft Azure and Google Cloud Platform to ensure tenant separation and compliance with standards promulgated by ISO and NIST.

Implementations and Development History

OVSDB originated as part of virtual switch projects and matured through contributions by companies and foundations including Nicira, VMware, The Linux Foundation, Open Networking Foundation, Red Hat, Intel Corporation, and community contributors. Implementations and client libraries exist across ecosystems in languages and projects like Open vSwitch (project), libovsdb, ovn (project), Python bindings used in Ansible (software) modules, Go clients adopted by Kubernetes, and integrations maintained by vendors such as Cisco Systems, Arista Networks, and Juniper Networks. The development trajectory reflects collaborative governance seen in projects like OpenStack and Linux Kernel development, with ongoing evolution driven by requirements from cloud operators, telecom carriers, and research initiatives at institutions like MIT and ETH Zurich.

Category:Networking software