11 System Software Upgrade
Quidway NetEngine20/20E
Configuration Guide - Basic Configurations
11-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 05 (2010-01-30)
11.1 Introduction
This section covers the following topics that you need to know before upgrading the system
software:
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System Software Upgrade
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License
11.1.1 System Software Upgrade
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When upgrading the system software, you must upgrade the license that is integrated with
the system software.
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Upgrade the system software and license under the guidance of technical support
engineers.
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Check the existing system software version before the upgrade.
When certain features are required on the current router, you can realize the addition through
upgrading the system software.
Before upgrading the system software, you need to obtain the system software and license
from Huawei.
The license contains two files: paf.txt and license.txt. The two files should be placed at the
root directory of the Flash of the master and slave RPUs.
After the upgrade is complete, do not delete the previous system software. When the upgrade
fails, the system software can restore to the previous version.
11.1.2 License
The license can be used to control the availability of some product features on a dynamic
basis. For example if the license file indicates that a particular feature is available, you can see
all related commands and functions after the system is started. If a feature is specified as
unavailable in the license file, related commands and interfaces are not displayed.
At the same time, the license mechanism controls the maximum resources that users can use,
such as the number of routes, LSPs, CR-LSPs and VPN instances.
In general, the price of a product is in direct proportion to its features and functions. The
license mechanism can flexibly add or reduce features as required to protect and save the
investment of users.
Suppose a user does not want certain features or functions at the beginning. These features
can be disabled through the license file. When the features are required later, the user can buy
the license of these features to enable them. This does not affect the current features or
functions. Therefore, users can flexibly decide the required features according to the service
demands without making great investment at the time of purchase.