23-123 Hotfix ConfigurationWhen configuring hotfix, go to these sections for information you are interested in:z Hotfix Overviewz Hotfix Configuration Task Listz Displaying and Maintaining Hotfixz Hotfix Configuration ExamplesHotfix OverviewHotfix is a fast and cost-effective method to repair software defects of a device. Compared with anothermethod, software version upgrade, hotfix can upgrade the software without interrupting the runningservices of the device, that is, it can repair the software defects of the current version without rebootingthe device.Basic Concepts in HotfixPatch and patch fileA patch, also called patch unit, is a package to fix software defects. Generally, patches are released aspatch files A patch file may contain one or more patches for different defects. After loaded from theFlash to the memory area, each patch is assigned a unique number, which starts from 1, foridentification, management, and operation. For example, if a patch file has three patch units, they willbe numbered as 1, 2, and 3 respectively.Incremental patchPatches in a patch file are all incremental patches. An incremental patch means that the patch isdependent on the previous patch units. For example, if a patch file has three patch units, patch 3 canbe running only after patch 1 and 2 take effect. You cannot run patch 3 separately.Common patch and temporary patchPatches fall into two types, common patches and temporary patches.z Common patches are those formally released through the version release flow.z Temporary patches are those not formally released through the version release flow, buttemporarily provided to solve the emergent problems.The common patches always include the functions of the previous temporary patches, so as to replacethem. The patch type affects the patch loading process only: the system will delete all the temporarypatches before it loads the common patch.Patch StatusEach patch has its status, which can be switched by command lines. The relationship between patchstate changes and command actions is shown in Figure 23-1. The patch can be in the state of IDLE,DEACTIVE, ACTIVE, and RUNNING. Load, run temporarily, confirm running, stop running, delete,
