Nortel DMS-100 Series Reference Manual page 450

4-200 Datafilling Firmware downloading on RSC-S UK / Europe
Firmware downloading
Implementation of PPXLs
Each PPXL loadfile contains a 1K data block at the start. This block
contains the patch IDs for the patches in the PPXL. The associated patch
files for each patch ID listed in the 1K data block must be present. The
patch files must be present when PPXL entry occurs in table PMLOADS.
When PPXL entry in table PMLOADS occurs, the system modifies or
creates the loadset. The system modifies the loadset if a loadfile is already
present for the base load. The system creates a loadset if the base load is
new to the DMS-100 switch.
After the PPXL entry in table PMLOADS occurs, manual actions can start
the PPXL load. The system recovery controller (SRC) can also load the
PPXL automatically. After the PPXL load, the PPXL reduces or eliminates
patching because the load includes most or all of the patches.
After the PPXL load occurs, the PPXL can have additional patches added or
removed in the same way as for an XPM. The removal of any internal
PPXL patches can occur, if the associated patch files are present.
The system adds or removes any patches added or removed after a PPXL
reload.
PPXL Naming Convention
The PPXL file names have _<date> attached to the end of the associated
base load name. For example, the name of a PPXL load file created for base
load ECL03BX is ECL03BX_941129. The base load name remains the
same. Base loads are any load that does not have the _<date> suffix.
The inherent value becomes the preservation of the patch stream with the
ability to up-issue a PPXL as required. The date identifier indicates the
vintage of a PPXL.
PPXL storage requirements
When preparing to load PPXLs occurs, Telcos must double the XPM load
storage requirements to provide space for the PPXLs. The PPXLs require
storage of the PPXL loadfile on the ACTVOL device. The base load file is
on the BKPVOL device.
297-8331-815 Standard 10.01 August 1999
(continued)
Note: Loadsets group all peripheral units loaded with the same load
together. To view all loadsets on the DMS-100 switch, enter the
PATCHER CI level and enter the command string INFORM PMALL.