Administrator Guide

476 Images and File Management
• The file extension must be . scr .
• A maximum of seven scripts are allowed on the switch.
• The combined size of all script files on the switch cannot exceed 2 MB.
• The maximum number of configuration file command lines is 2000.
Single-line annotations in the configuration file can be used to improve script
readability. The exclamation point (!) character flags the beginning of a
comment. The comment flag character can begin anywhere within a single
line, and all input following this character to the end of the line is ignored.
Any line in the file that begins with the “!” character is recognized as a
comment line and ignored by the parser.
The following example shows annotations within a file (commands are bold):
! Script file for displaying management access
show telnet !Displays the information about remote connections
! Display information about direct connections
show serial
! End of the script file
Managing Files on a Stack
Image files downloaded to the master unit of a stack are automatically
downloaded to all stack members. If you activate the backup image on the
master, it is activated on all units as well so that when you reload the stack, all
units use the same image.
The running-config, startup-config, and backup-config files, as well as all keys
and certificates are synchronized across the stack when the running-config
file is saved to the startup-config file.
Configuration scripts are not distributed across the stack and only exist on
the unit that is the master unit at the time of the file download.
Uploading Configuration Files by Using SNMP
When you use SNMP to upload a configuration file to a TFTP server, the
agentTransferUploadFileName object must be set to the local filename,
which is either startup-config or backup-config.