
Port Clustering
Chapter 15 139
Introduction
Port clustering is the ability to manage many serial ports on one or multiple
slave devices from one master device using a single IP address. For instance,
the Digi CM unit can manage up to 16 slave devices or a maximum 816 serial
ports with one Master device. Ports can be configured either collectively or
individually depending on user preference. Each master and slave device is
configured separately; they cannot be configured from one master console.
A secondary IP address can be specified to put all slaves on a private network.
The secondary IP option can be found under Network –> IP configuration.
To set up the Digi CM unit for port clustering you will need to:
• Configure all the Digi CM serial ports
• Assign one Digi CM unit as the master clustering device; all other Digi
CM units default to slave devices.
• Import slave configuration to the Digi CM unit’s master device
Chapter 15
Port Clustering
Slave 2
192.168.1.103
Slave 1
192.168.1.102
IP 211.112.67.34
Master
Ports 7000-7031 - Local
8000-8031 - Slave 1
9000-9031 - Slave 2
Remote PC
Telnet 211.112.67.34 8005
Port 5
Server
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