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Configuring Ports

Chapter 5 49

Resetting Ports

The Digi CM unit allows you to restart all processes associated with a port and

to disconnect all sessions.

To reset an individual port:

1. Click Serial port > Configuration > Port number.

2. Click Reset this port: Reset.

Reset Individual Port Settings

Individual ports can be reverted to factory defaults.

1. Click Serial port > Configuration > Port number.

2. Click Set this port as factory default: Set.

Port Title

The Digi CM unit offers multiple ways to configure the port title; both manually

and automatically. The default is set to “Port Title # xx” with xx being the port-

number.

Automatic Device Recognition allows the Digi CM unit to evaluate the attached

devices and populate the port title. Additionally the Digi CM unit can generate

a SNMP trap or send an e-mail in case the response of the device changes or

it stops responding.

If Active detect is selected, a configurable probe string (carriage return =0x0d

by default) is sent to the console port and the response is saved to a file at

/var/run/systemrep_raw.portxx with xx being the port number.

This file is parsed using a script /tmp/cnf/active_detect and the operating

system and device name are written to files: /var/run/HostnamePortxx and

/var/run/OSPortxx.

The commands to parse the system response are user customizable, so if a

device is not recognized immediately by the Digi CM unit, add a rule to the file.

If Passive detect is selected, no probe string is sent to the attached device but

the port buffer is analyzed.

The script /tmp/cnf/passive_detect is executed and the results are saved to

files: /var/run/HostnamePortxx and /var/run/OSPortxx.

After editing the scripts as either active_detect or passive_detect, save them to

flash using the saveconf command so they are not lost after a reboot.

Configuring Automatic Device Recognition

Configure a serial port for Automatic Device Recognition.

1. Access the web interface.

2. Under the Serial Port heading, Click Configuration.

3. Choose All or an Individual port > Serial port parameters.

4. Edit the fields as they apply to your configuration.

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Digi CM Betriebsanweisung Seite 49