When configuring hotfix, go to these sections for information you are interested in:
Hotfix Configuration Task List
Displaying and Maintaining Hotfix
Hotfix Configuration Examples
Hotfix is a fast and cost-effective method to repair software defects of a switch. Compared with another
method, software version upgrade, hotfix can upgrade the software without interrupting the running
services of the switch, that is, it can repair the software defects of the current version without rebooting
Basic Concepts in Hotfix
Patch and patch file
A patch, also called patch unit, is a package to fix software defects. Generally, patches are released as
patch files. A patch file may contain one or more patches for different defects. After loaded from the
Flash to the memory patch area, each patch is assigned a unique number, which starts from 1, for
identification, management and operation. For example, if a patch file has three patch units, they will be
numbered as 1, 2, and 3 respectively.
Patches in a patch file are all incremental patches. An incremental patch means that the patch is
dependent on the previous patch units. For example, if a patch file has three patch units, patch 3 can be
running only after patch 1 and 2 take effect. You cannot run patch 3 separately.
Common patch and temporary patch
Patches fall into two types, common patches and temporary patches.
Common patches are those formally released through the version release flow.
Temporary patches are those not formally released through the version release flow, but
temporarily provided to solve the emergent problems.
The common patches always include the functions of the previous temporary patches, so as to replace
them. The patch type affects the patch loading process only: the system will delete all the temporary
patches before it loads the common patch.
Each patch has its status, which can be switched by command lines. The relationship between patch
state changes and command actions is shown in
DEACTIVE, ACTIVE, and RUNNING. Load, run temporarily, confirm running, stop running, delete,
1-1. The patch can be in the state of IDLE,