12 Patch Management
Quidway NetEngine80
Configuration Guide - Basic Configurations
12-2 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2009-12-20)
12.1 Introduction
After the patch runs successfully, a "patchstate.dat" file is created at the root directory of the
Flash Memory. Do not delete the file; otherwise, the patch remains invalid after restart.
The service of carriers features long-term operation and non-interruption. The upgrade and
maintenance of the router can be realized through installing patches. This does not break the
operation of the router.
Based on the type of boards, the patch is classified as:
z
The MPU patch
z
The LPU patch
Before running a patch, obtain the correct patch files based on the type of boards.
At the same time, the system allows the running of only one MPU patch and one LPU patch.
As a result, you need to confirm no patch is running in the current system before installing a
patch. If a patch runs in the system, delete the patch before installing the new patch.
The NE80 provides the patch function, and you can use the patch program released by
Huawei to upgrade the system software.
Patch Status
A patch program has three statuses: activated, deactivated and running. Figure 12-1 shows the
conversion between the three statuses.
Figure 12-1 Conversion between the statuses of a patch
DeactivatedNo patch
ActivatedRunning
Load patch
Delete patch
Delete patch
Delete patch
Deactive patch Active patch
Run patch
You can operate a patch program as follows:
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