R3303-HP HSR6800 Routers Fundamentals Configuration Guide

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Basic concepts
This section describes the basic patch concepts.
Patch, patch file, and patch package file
A patch fixes certain software defects.
A patch file contains one or more patches. After being loaded from a storage medium to the patch
memory area, each patch is assigned a unique number, which starts from 1. For example, if a patch file
has three patches, they are numbered 1, 2, and 3.
A patch package file contains patch files for multiple features or cards. It enables you to use one
command to bulk-fix bugs for multiple features or cards.
Incremental patch
Incremental patches are dependent on previous patches and cannot separately run. For example, if a
patch file has three patches, patch 3 can be running only after patch 1 and 2 take effect. You cannot run
patch 3 separately.
Patches that have been released are all incremental patches.
Common patch and temporary patch
Common patches are formally released to users.
Temporary patches are interim solutions that are provided to fix critical bugs. They are not formally
released.
A common patch always includes the functions of its previous temporary patches. The system deletes all
the temporary patches before loading the common patch.
Patch states
A patch is in IDLE, DEACTIVE, ACTIVE, or RUNNING state, depending on the patch manipulation
command.
Patch manipulation commands include patch load (load), patch active (run temporarily), patch run
(confirm running), patch deactive (stop running), patch delete (delete), patch install (install), and undo
patch install (uninstall).
For example, if you execute the patch active command, patches in DEACTIVE state change to the ACTIVE
state.
Figure 49 sh
ows the patch manipulation commands and how they affect the patch state.
IMPORTANT:
Patch state information is saved in the patchstate file on the storage media. To guarantee that the device
can identify the patches, do not edit, delete, move the file, or change the file name.