Contents

Introduction· 1

Prerequisites· 1

Example: Patching software· 1

Network configuration· 1

Applicable hardware and software versions· 1

Restrictions and guidelines· 1

Procedures· 2

Verifying the configuration· 2

Configuration files· 2

Introduction

This document provides software patching examples that use ISSU install commands.

Prerequisites

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of ISSU that uses install commands.

Example: Patching software

Network configuration

As shown in Figure 1, the switch and the TFTP server can reach each other. The switch is running CMW910-SYSTEM-R1116, and it is not been patched before.

Use the patch image file CMW910-SYSTEM-R1116H04.bin to fix bugs without rebooting the switch.

Figure 1 Network diagram

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

Restrictions and guidelines

The patch image version must match the device model and Comware version. For example, to fix bugs in CMW910-SYSTEM-R1116.bin, you must use CMW910-SYSTEM-R1116H04.bin.

Procedures

# Download the patch image file CMW910-SYSTEM-R1116H04.bin from the TFTP server to the root directory of the flash memory on the master.

<Sysname> tftp 2.2.2.2 get CMW910-SYSTEM-R1116H04.bin

Press CTRL+C to abort.

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current

                                 Dload  Upload   Total   Spent    Left  Speed

100 25.2M    0 25.2M    0     0   210k      0 --:--:--  0:02:02 --:--:--  209k

# Activate the patch image on the switch.

<Sysname> install activate patch flash:/CMW910-SYSTEM-R1116H04.bin slot 1

This operation maybe take several minutes, please wait.............Done.

The patch image takes effect immediately after it is activated.

# For the patch image to take effect after a reboot, commit the software change.

<Sysname> install commit

Verifying the configuration

# Verify that the patch image has been activated successfully.

<Sysname> display install active

Active packages on slot 1:

  flash:/CMW910-BOOT-R1116.bin

  flash:/CMW910-SYSTEM-R1116.bin

  flash:/CMW910-SYSTEM-R1116H04.bin

# Verify that the patch image file has been added to the main startup software image list so the images can take effect after a reboot.

<Sysname> display install committed

Committed packages on slot 1:

  flash:/CMW910-BOOT-R1116.bin

  flash:/CMW910-SYSTEM-R1116.bin

  flash:/CMW910-SYSTEM-R1116H04.bin

Configuration files

The system does not save the commands used in the configuration procedures to a configuration file.