| Object Name | Type | Description | Access | | :--- | :--- | :--- | :--- | | fwDownloadProtocol | Integer | Selects TFTP(1), HTTP(2), or FTP(3). | Read-Write | | fwDownloadServerIP | IpAddress | The IP address of the remote server. | Read-Write | | fwDownloadFileName | OctetString | The path/name of the firmware file. | Read-Write | | fwDownloadStatus | Integer | Current status: Idle(0), Downloading(1), Flashing(2), Error(3). | Read-Only | | fwDownloadTrigger | Integer | Writing '1' initiates the process. | Read-Write | | fwVersion | OctetString | Current running firmware version. | Read-Only |
Vendors define private enterprise MIBs for firmware management. A robust implementation should include the following structure:
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Upon receiving the trigger, the device's SNMP agent spawns a background process to connect to the server and download the file. The device usually enters a "busy" state, replying to SNMP pings with a status indicating progress.
For the purpose of this paper, a "Web Pro" device refers to an embedded system that features: | Object Name | Type | Description |
Example Pseudocode:
The administrator must load the vendor-specific MIB file into their SNMP management tool. This translates numeric Object Identifiers (OIDs) into human-readable names (e.g., .1.3.6.1.4.1.xxx.1.1.3 becomes firmwareDownloadURL ). | Read-Write | | fwDownloadStatus | Integer |
Connects to Environmental Monitoring Devices (EMD) to detect temperature and humidity.