Chapter 1
| Initial Switch Configuration
Automatic Installation of Operation Code and Configuration Settings
– 83 –
Usage Guidelines
◆ If this feature is enabled, the switch searches the defined URL once during the
bootup sequence.
◆ FTP (port 21) and TFTP (port 69) are both supported. Note that the TCP/UDP
port bindings cannot be modified to support servers listening on non-standard
ports.
◆ The host portion of the upgrade file location URL must be a valid IPv4 IP
address. DNS host names are not recognized. Valid IP addresses consist of four
numbers, 0 to 255, separated by periods.
◆ The path to the directory must also be defined. If the file is stored in the root
directory for the FTP/TFTP service, then use the “/” to indicate this (e.g., ftp://
192.168.0.1/).
◆ The file name must not be included in the upgrade file location URL. The file
name of the code stored on the remote server must be ECS4620-28T.bix (using
lower case letters as indicated).
◆ 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 ECS4620-28T.BIX from
the server even though ECS4620-28T.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, ecs4620-28t.bix and
ECS4620-28T.BIX are considered to be unique files. Thus, if the upgrade file is
stored as ECS4620-28T.BIX (or even Ecs4620-28t.bix) on a case-sensitive server,
then the switch (requesting ECS4620-28T.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.
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