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Chapter 11 Upgrading PSAX System Software
Upgrading Using the XModem/YModem File Transfer Method
11-20 255-700-239
PacketStar
®
PSAX 4500 Multiservice Media Gateway User Guide , Issue 2 Release 8.0.0
Notes:
Lucent recommends that you use either the YModem or the
YModem-G protocol. Use the XModem protocol if that is the only one you
have available to use.
• 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.
5
Select the Receive Files command.
The terminal emulator displaying the PSAX system window interface
takes the XMODEM/YMODEM File Transfer window out of view. A mes-
sage is displayed indicating that you can cancel the transfer by pressing
Ctrl+X several times. A second message is displayed indicating that you
must start the terminal emulator send function.
6
Using the terminal emulator send function, select one of the three proto-
col types: 1) YModem, 2) YModem-G, or 3) XModem. Be sure to select
the same protocol as the one you selected on the Send Options panel of
the XMODEM/YMODEM File Transfer window (see Figure 11-6).
7
In the terminal emulator field for the location of the file, specify the drive
where the PSAX system software upgrade files reside (normally, the CD-
ROM drive) and the directory pathname.
For example, specify a pathname like one of the following:
Packet Size Default: 1024
Range: N/A
Format: predefined
numeric (bytes)
Indicates the size (in bytes) of the packet that will
be transmitted in the data stream.
1024 Indicates that the packet contains 1024 bytes.
128 Indicates that the packet contains 128 bytes.
Directory Default:
/scsi/current/
Range: N/A
Format: /scsi/next/
directoryname/
Specifies the directory on the CPU module system
disk where the PSAX system configuration (data-
base) files are stored. This directory contains the
files that you want to back up on your computer
workstation.
Filename Default: N/A
Range: N/A
Format: alphanu-
meric
Specifies the filename of the PSAX system config-
uration (database) file you want to back up on
your computer workstation.
Table 11-8. Field Descriptions for the XMODEM/YMODEM File Transfer Window (Continued)
Field Names Field Values Description