3com S7906E Installation Instruction

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Hotfix Configuration 
 
The S7900E Series Ethernet Switches are distributed devices supporting Intelligent Resilient 
Framework (IRF). Two S7900E series can be connected together to form a distributed IRF device. If an 
S7900E series is not in any IRF, it operates as a distributed device; if the S7900E series is in an IRF, it 
operates as a distributed IRF device. For introduction of IRF, refer to IRF Configuration in the System 
Volume. 
 
When configuring hotfix, go to these sections for information you are interested in: 
Hotfix Overview 
Hotfix is a fast and cost-effective method to repair software defects of a device. Compared with another 
method, software version upgrade, hotfix can upgrade the software without interrupting the running 
services of the device, that is, it can repair the software defects of the current version without rebooting 
the device. 
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 
storage media 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. 
Incremental patch 
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.