Cisco 350 Series Administration Manual page 739

Smart Network Application (SNA)
DAC Workflow
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
If a rejection event is received from a device that is not a DAC RADIUS server, the message is
ignored, and all further messages from this device for the next 20 minutes are ignored. After
20 minutes, SNA checks again if the device is a DAC RADIUS server. If a user is added to the
whitelist, the device is added to the DAC group of all DAC servers. When this configuration is
saved, you can decide whether to save this setting immediately to the server's startup-
configuration (this option is selected by default).
Until a device is added to the white-list, it is not allowed access to the network.
You can view and change the white and black lists at any time, as long as a DAC RADIUS
server is defined and reachable.
When applying the DAC settings, you are presented with a report listing actions that will be
applied to the participating devices. After you approve the changes, you can decide if the
settings should additionally be copied to the startup configuration file of the configured
devices (this option is selected by default). Finally, apply the configurations.
The report displays warnings if some steps of the DAC configuration process are missed,
along with the status of the actions as handled by the devices.
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