User`s guide

Upgrading system software
The upgrade procedure
E-12 Preliminary January 30, 1998 Pipeline User’s Guide
This check is initiated by the currently-loaded software. If your Pipeline is using
a version of software with this feature and you attempt to load an older version of
software that does not have this feature, the download will be aborted because the
older software has no platform identifiers that the currently-loaded software uses
to validate compatibility. In this case, you’ll need to use TFTP with the -f flag, or
the diagnostics command dnldCode -f, to have the Pipeline download the older
software without performing the compatibility check.
In the following example, a user attempts to use TFTP to download a Pipeline 50
software load (b.p50) to a newer Pipeline 75 running b2.p75:
1
From the VT100 interface, user accesses the diagnostics monitor.
2
User enters the following command:
tload tftpserver b.p50
3
The Pipeline 75 displays the following information to the screen:
saving config to flash
.........................................
loading code from tftpserver.ascend.com
file /tftpboot/b.p50...
thin load:
This load appears to be for another platform.
This load appears not to support your network
interface
Download aborted. Use ’tloadcode -f’ to force.
The Pipeline has compared the downloading file, b.p50 to its currently-loaded
file, b2.p75. These informational messages indicate that the user attempted to
load an incompatible platform and an incompatible network interface.
In the following example, a user attempts to use TFTP to download an old
version of software (without this feature) to a Pipeline 75 that uses this feature:
1
From the VT100 interface, user accesses the diagnostics monitor.
2
User enters the following command:
tload tftpserver b.p75
3
The Pipeline 75 displays the following information to the screen:
saving config to flash
.........................................