Chapter 13 Upgrading PSAX System Software
Choosing the System Software File Transfer Method
13-2
255-700-447
PacketStar
®
PSAX 2300 Multiservice Media Gateway User Guide
, Issue 1
Release 9.0.0
It is recommended that you periodically back up your PSAX system configu-
ration database files, which reside on the system disk of the CPUn module to
a remote storage medium located on a computer workstation or PC.
To backup the database configuration files, select a method from Table 12-1.
Note:
You cannot back up files using the Telnet function.
Choosing the System Software File Transfer Method
Installing a new release of the PSAX system software involves selecting one
of the methods listed in Table 13-1 for downloading the PSAX system soft-
ware upgrade files, which are provided on a CD-ROM.
Lucent recommends that you use the FTP method; however, if you have only
the XModem or YModem file transfer method available, you should consider
which of the three XModem or YModem protocols in the following list to
use. Of these three protocols, Lucent recommends you use either the
YModem-G or the YModem protocol per the following considerations:
•
The YModem-G protocol allows the fastest transmission of the three types;
however, this protocol does not acknowledge receipt of packets. You can
receive all files grouped under a subdirectory at one time.
•
The YModem protocol is a slower method of transmission, but is more reli-
able because it acknowledges receipt of packets. You can receive all files
grouped under a subdirectory at one time.
•
The XModem protocol is a laborious method of transmission because you
must enter the filename of each file in the complete package of software
upgrade files to perform the upgrade task. Use of the XModem protocol is
discouraged but use it only if this protocol is the only option available to
you.
Note:
Transferring the software upgrade files using the YModem protocol
takes approximately 24 hours. Using the XModem protocol takes
longer than the YModem protocol.
Table 13-1. Tasks for Transferring Files to Your PSAX System
If you are using the...
you need to...
FTP method
download the files from the CD-ROM on a host workstation to
the CPUn module (or CPUn component) system disk (see
“Upgrading Using the File Transfer Protocol Method” on
page 13-3).
XModem or YModem file
transfer method
transfer the files from the CD-ROM on a remote host worksta-
tion to the CPUn module (or CPUn component) system disk
via a modem (see “Upgrading Using the XModem/YModem
File Transfer Method” on page 13-15).
