Cisco Ultra-Reliable Wireless Backhaul Standalone, Software Configuration Guide, Release 26.1.x

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Automatic Device Upgrade using TFTP

Updated: April 10, 2026

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Upgrades the device image automatically by connecting to a local TFTP server at user-defined intervals. The device detects the image file and performs the upgrade process.

Before you begin

This method enables the device to connect to the local TFTP server at user-determined intervals to check for the availability of new device image. The device detects the device image file and performs the upgrade.

Procedure

	1.	Create device.manifest file and upload to the same TFTP server root directory where the device image is stored.
	2.	Before enabling the TFTP automatic upgrade, configure the TFTP server and time interval. Note The time interval must be specified in the hours format. Caution Do not disconnect or reboot the device until the device download completes. Based on the image file size, the device upgrade may take some time.

Configuring Manifest File on the TFTP Server

The manifest file is a configuration component that acts as a roadmap for the device upgrade process.

Provides instructions for retrieving the device image from the TFTP server.
Defines the conditions that must be satisfied before the upgrade begins.

Upgrade Process Workflow

The device retrieves the manifest file from the TFTP server.
The device parses the manifest file to locate the device image.
The device retrieves the image from the TFTP server.
The device verifies the required conditions and initiates the upgrade.

Manifest File Format

The manifest file contains the device image filename, MD5 checksum, and device image version required for the device upgrade process.

The manifest file includes the following information:

Device image filename
MD5 checksum of the device image file
Device image version

Table 1. Manifest file names by device model
Device Type	Manifest File Name
IW9167EH	IW9167EH.manifest
IW9165E	IW9165E.manifest
IW9165DH	IW9165DH.manifest

Example Manifest File Format


image_name=ap1g6m-k9c1-tar.202307110910

image_md5=376e15acd4e82a49a81d42add904f5b0
                
image_version=8.8.1.101

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