52 AT-8800 Series Switch User Guide
Software Release 2.6.1
C613-02039-00 REV A
Loading and Uploading Files
When you want to upgrade your switch to a new software patch or release, or
use a new configuration file, load files onto the switch using the router’s
LOADER module. You can also use the LOADER module to upload files, such
as configuration files or log files, from the switch onto a host on the network.

File Naming Conventions

The file subsystem provides a flat file system—directories are not supported.
Files are uniquely identified by a file name of the form:
[device:]filename.ext
where:
■device specifies the physical memory device on which the file is stored,
FLASH. If device is specified, it must be separated from the rest of the file
name by a colon (“:”). device is optional. If device is not specified, the default
is FLASH.
■filename is a descriptive name for the file, and may be one to eight
characters in length. Valid characters are lowercase letters (a–z), uppercase
letters (A–Z), digits (0–9) and the hyphen character (-).
■ext is a file name extension, one to three characters in length. Some file
name extensions are shown in Figure6 on page 52. Valid characters are
lowercase letters (a–z), uppercase letters (A–Z), digits (0–9) and the hyphen
character (-). The extension is used by the switch to determine the data
type of the file and how to use the file (Table6 on page 52). If ext is
specified, it must be separated from the filename portion by a period (“.”)
Table 6: File extensions and file types.
Extension File type/function
CER Public Key Infrastructure (PKI) certificate file.
CFG Configuration or boot script.
CRL PKI Certificate Revocation List file.
CSR PKI Certificate Signing Request file.
GIF (Graphics Interchange Format) graphic image file.
HLP CLI help file.
HTM HTML file used by the HTTP server.
INS Stores install information created by using the SET INSTALL
command.
JPG (Joint Photographic Experts Group) graphic image file.
KEY Public portion of an RSA key.
LIC Licence information.
LOG Log file.
MDS Modem script.
REL Software release.
REZ Compressed release.
SCP Script.