C
HAPTER
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| Basic Management Tasks
Managing System Files
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exactly as indicated here). Enter the file name for other switches
described in this manual exactly as shown on the web interface.
◆ The FTP connection is made with PASV mode enabled. PASV mode is
needed to traverse some fire walls, even if FTP traffic is not blocked.
PASV mode cannot be disabled.
◆ The switch-based search function is case-insensitive in that it will
accept a file name in upper or lower case (i.e., the switch will accept
IPECS_ES-3050_OP.BIX from the server even though
IPECS_ES-3050_Op.bix was requested). However, keep in mind that
the file systems of many operating systems such as Unix and most
Unix-like systems (FreeBSD, NetBSD, OpenBSD, and most Linux
distributions, etc.) are case-sensitive, meaning that two files in the
same directory, ipecs_es-3050_op.bix and IPECS_ES-3050_Op.bix are
considered to be unique files. Thus, if the upgrade file is stored as
IPECS_ES-3050_Op.bix (or even IPECS_es-3050_op.bix) on a case-
sensitive server, then the switch (requesting ipecs_es-3050_op.bix) will
not be upgraded because the server does not recognize the requested
file name and the stored file name as being equal. A notable exception
in the list of case-sensitive Unix-like operating systems is Mac OS X,
which by default is case-insensitive. Please check the documentation
for your server’s operating system if you are unsure of its file system’s
behavior.
◆ Note that the switch itself does not distinguish between upper and
lower-case file names, and only checks to see if the file stored on the
server is more recent than the current runtime image.
◆ If two operation code image files are already stored on the switch’s file
system, then the non-startup image is deleted before the upgrade
image is transferred.
◆ The automatic upgrade process will take place in the background
without impeding normal operations (data switching, etc.) of the
switch.
◆ During the automatic search and transfer process, the administrator
cannot transfer or update another operation code image, configuration
file, public key, or HTTPS certificate (i.e., no other concurrent file
management operations are possible).
◆ The upgrade operation code image is set as the startup image after it
has been successfully written to the file system.
◆ The switch will send an SNMP trap and make a log entry upon all
upgrade successes and failures.
◆ The switch will immediately restart after the upgrade file is successfully
written to the file system and set as the startup image.
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