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OvsAgent serves as the southbound executor for virtual networking configuration on RDK-B platforms. Components such as BridgeUtils and MeshAgent submit configuration requests to OVSDB; OvsAgent picks them up, applies them to the Linux kernel networking layer, and reports back. This decoupling allows other middleware components to interact with the virtual switch through a well-defined database interface without needing direct knowledge of the underlying networking commands or platform-specific details.

Markdown
```mermaid

%%{init: {
  "theme": "default",
  "flowchart": { "nodeSpacing": 20, "rankSpacing": 20 },
  "themeVariables": {
    "fontSize": "10px"
  }
}}%%

graph LR
    subgraph ExternalSystems ["External Systems"]
        MeshCtrl["Mesh Controller\n(Remote)"]
    end

    subgraph RDKBMiddleware ["RDK-B Middleware (Linux Process)"]
        BridgeUtils["BridgeUtils\nComponent"]
        MeshAgent["MeshAgent\nComponent"]
        OvsAgent["OvsAgent\n(This Component)"]
        OvsDbServer["OVSDB Server\n(ovsdb-server)"]
        CcspPsm["CcspPsm\n(PSM)"]
        CcspCR["Component Registry"]
    end

    subgraph SystemLayer ["System & Platform Layer"]
        OvsTools["ovs-vsctl\novs-ofctl"]
        LinuxNet["Linux Bridge\nbrctl / ifconfig"]
        Syscfg["syscfg\n(NVRAM Store)"]
        DeviceProps["/etc/device.properties"]
    end

    MeshCtrl -->|"Remote Mgmt"| MeshAgent
    BridgeUtils -->|"Unix Socket\nJSON-RPC"| OvsDbServer
    MeshAgent -->|"Unix Socket\nJSON-RPC"| OvsDbServer
    OvsAgent -->|"Unix Socket /var/run/openvswitch/db.sock\nJSON-RPC OVSDB Protocol"| OvsDbServer
    OvsAgent -->|"R-BUS"| CcspCR
    OvsAgent -->|"systemd gate\nConditionPathExists=/tmp/psm_initialized"| CcspPsm
    OvsAgent -->|"syscfg_get\nlan_ipaddr"| Syscfg
    OvsAgent -->|"getenv MODEL_NUM\nOneWiFiEnabled"| DeviceProps
    OvsAgent -->|"v_secure_system"| OvsTools
    OvsAgent -->|"v_secure_system\n(non-OVS bridges)"| LinuxNet

    classDef external fill:#e8f5e8,stroke:#2e7d32,stroke-width:2px;
    classDef component fill:#e1f5fe,stroke:#0277bd,stroke-width:2px;
    classDef system fill:#fff3e0,stroke:#ef6c00,stroke-width:2px;
    classDef thisComp fill:#fce4ec,stroke:#c62828,stroke-width:2px;

    class MeshCtrl external;
    class BridgeUtils,MeshAgent,OvsDbServer,CcspPsm,CcspCR component;
    class OvsTools,LinuxNet,Syscfg,DeviceProps system;
    class OvsAgent thisComp;
```

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