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- Table of Contents
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- H3C Router Software Upgrade Guide-6W100
- 00-Preface
- 01-About software upgrade
- 02-Upgrade restrictions and guidelines
- 03-Upgrade workflow
- 04-Preparing for the upgrade
- 05-Upgrading the BootWare
- 06-Upgrading the startup software
- 07-Installing patches and features
- 08-Verifying the upgrade
- 09-Rolling back the running software images
- 10-Troubleshooting
- 11-Appendix A Downloading the upgrade file
- 12-Appendix B Software upgrade record form
- 13-Appendix C Acronyms
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 02-Upgrade restrictions and guidelines | 38.34 KB |
Contents
Upgrade restrictions and guidelines
Hardware-related restrictions and guidelines
Software-related restrictions and guidelines
Upgrade restrictions and guidelines
This document covers software upgrade procedures only for physical devices.
Unless otherwise noted, this document uses a standalone device to describe the upgrade procedures.
Hardware-related restrictions and guidelines
Before the upgrade, make sure the device is operating correctly, and make sure the LEDs of the power supply, fans, cards, and subcards are normal.
During the upgrade, do not power off the device, and do not restart or remove swappable modules.
If you store the startup software images in a hot swappable storage medium, do not remove the hot swappable storage medium during the startup process.
Read the release notes to verify the software and hardware compatibility and hardware restrictions for the device, cards, and subcards.
Software-related restrictions and guidelines
The command output varies by device model.
Before the upgrade:
· Use the release notes (software feature changes) to identify the differences between the new and old commands. Some functions might become unavailable due to command changes.
· Use the release notes to verify that the current software version can be upgraded to the target version.
· Back up the current software images, configuration files, and login passwords to prevent data loss if the storage medium is damaged.
· Make sure the device has sufficient storage space for the upgrade software images.
· Make sure the CPU usage of the device or a card is not high.
During the upgrade:
· Enable logging of the terminal to collect information.
· An upgrade requiring a device reboot will cause service interruption for the duration of the reboot.
· Before an upgrade operation is completed, no other upgrade operations can be performed. Upgrade operations include the install, issu, and boot-loader commands.
After the upgrade:
· The upgrade of the BootWare might cause the software version to fail to be downgraded.
· After the upgrade, do not delete the running software images.
