Doppelgänger (Device Mirroring)

Description

With the Doppelgänger feature you can configure one (or more) M.1k2s to act as slave to one master M.1k2. All configuration data (crosspoints, port configuration, labels) are synchronized continuously as long as the connection is active.

The mirroring is controlled from the slave device. It choses a master, starts and terminates the Doppelgänger slave mode. While active, no local control is possible on a slave device.

Create A Slave

Configuration → Device

Seleting a Master

If you know the master device's IP address, you can enter it directly in the corresponding field.

If your master device is in the same network and active, it is discovered automatically and shown in the list of Aavailable Devices. Just pick your master by pressing "Use as Master".

Activating Doppelgänger Mode

Press "Activate Doppelgänger mode". Local is now disabled and all pages of the user interface are redirected to the Doppelgänger status page.

The slave M.1k2 stores the Doppelgänger setting and boots into slave mode again when powered up.

How Does It Work?

Once activated, the slave connects to the master and receives the current configuration. As long as the connection remains, all configuration changes on the master are transmitted to the slave as well.

To detect a broken connection to the master, the slave receives a 'heartbeat' packet once per second. If it didn't receive such a packet for five seconds, it assumes the connection is broken and tries to reconnect to the master.

What Is Mirrored?

The following settings are mirrored from the master:

• Wordclock settings (port references, multipliers, ..)
• MADI port settings (56/64ch, 96k frame)
• MADI port input redundancy
• Online and offline matrix, including locks
• Port and channel gains
• MIDI matrix
• Serial matrix and serial configuration
• All labels
• GPO automation settings
• Temperature control
• State LED settings

The following settings are not mirrored:

• Doppelgänger configuration
• The Identify command
• Device name setting
• Network setting
• GPO levels

Slave Status Page

Once Doppelgänger is activate, local control is disabled and the user interface redirects all pages to the Doppelgänger status page.

You can see the current status of the link to the Master:

• Not connected: Doppelgänger mode is not activate
• Connecting to Master: Doppelgänger is active and the slave is trying to establish a connection with the master device. Once activated, the slave tries to connect with its master indefinitely. If this is the only message you get, the master cannot be reached from the slave (the connection attempts run into timeouts).
• Initializing: A connection with the master is established and the initial configuration is transferred.
• Active: The initial configuration was processed and the link to the master was active within the last five seconds.

Slave Status

In addition to the slave status page (see above), the slave status can be output in machine readable form as well.

Via GPO

You can use the GPO event automation feature to configure the GPOs to indicate if

• the connection to the master is active (on a slave device)
• the connection to the master is broken (on a slave device)
• all connection to slaves are alive (on a master device)
• any connection with a slave is broken (on a master device)

Via telnet

Any status change of the connection with the master is output in the telnet status feature.

Master Status

If there is a slave connection alive with the master, the keyword MASTER shows up in the status bar next to the login bar. If you click on it, the Doppelgänger configuration panel pops up which looks a bit different now:

A master device cannot become a slave itself, so this functionality is disabled in the user interface.

A new list, Connected Slave Devices, shows you the addresses of the slaves currently conneted. If you click on an address, the Slave Status Page of the slave M.1k2 opens in a new windows.