Hotfix Configuration; Hotfix Overview; Basic Concepts In Hotfix - 3Com S7906E Configuration Manual

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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 Configuration Task List
Displaying and Maintaining Hotfix
Hotfix Configuration Examples
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.
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