Rockwell Automation 1783-BMxxx Stratix 5700 Ethernet Managed Switches User Manual - Manual (Page 114)

114 Rockwell Automation Publication 1783-UM004E-EN-P - June 2014
Chapter 3 Switch Software Features
Configuration Management The switch can store its configuration in internal memory or on an external SD
card. By default, the SD card always takes precedence over internal memory. If
you have a valid IOS image and configuration files on the SD card and start the
switch with the SD card inserted, the switch loads the files from the SD card.
In general, the start method for the switch becomes the source for any changes
you make to the configuration. For example, if you start from the SD card, any
changes you make are saved to the SD card. If you start the switch from internal
memory, even if you insert an SD card while starting the system, changes are
saved to internal memory. To determine the start method, click the SD Sync tab
from the Device Manager Web interface.
The configuration files (config.text & vlan.dat) are in human readable ASCII
format. You can download the files to a computer by using one of these methods:
• FTP
• AOP
• By using a computer to read the SD card
You can also store the configuration files as part of your controller project in the
Logix Designer application.
The Device Manager Web interface lets you synchronize your IOS image and
configuration files automatically, or on demand.
SD Card Synchronization The SD card synchronization feature lets you synchronize the SD card with the
onboard flash memory. You can synchronize either the configuration files or the
IOS image. If the SD card is present, the switch starts from the SD card with its
configuration. If the SD card is not present, the switch reads the start parameters
from the specified IOS image stored on internal memory.
Alarms You can connect up to two alarm inputs from external devices in your
environment, such as a door or a temperature gauge, to the alarm input port on
the switch front panel. Output alarm contacts can be configured by using the
CLI. The default output is also triggered by an over- or under-temperature alarm
or a port not forwarding condition. The output alarm relay can be configured as a
normally energized or a normally de-energized circuit by using the CLI.
Cryptographic IOS Software
(optional) The Stratix 5700 cryptographic IOS (available as a separate catalog number for
downloading) provides network security by encrypting administrator traffic
during Telnet and SNMP sessions. The cryptographic IOS supports all features
of the standard IOS, as well as these protocols:
• Secure Shell (SSH) Protocol v2
IMPORTANT You can overwrite your desired configuration if you synchronize in the wrong
direction.