12 Patch Management
Quidway NetEngine20/20E
Configuration Guide - Basic Configurations
12-2 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 05 (2010-01-30)
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 always should be 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.
At the same time, the system allows the running of only one system 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 NE provides the patch function, and you can use the patch program released by Huawei
to upgrade the system software. 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:
z
Loading a patch
z
Activating or deactivating a patch
z
Running a patch
z
Deleting a patch
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