User`s guide

About Port Clustering
Chapter 15 Port Clustering 220
About Port Clustering
Port clustering is the ability to coherently manage serial ports across
multiple devices. Digi Passport supports two methods of port clustering,
both of which can be used concurrently:
• Master/Slave Clustering
• Peer-to-Peer Clustering
Master/Slave Clustering
Master/slave clustering allows serial ports on one or multiple slave devices
to be managed from one master device using a single IP address. One unit
is defined as the master and the other units as slaves.
For example, the Digi Passport unit can manage up to 48 slaves or a
maximum of 2352 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.
While it is possible to define multiple units as masters for a common set of
slaves, a unit cannot be both a master and a slave at the same time. If a
Digi Passport unit has Master/Slave clustering configured, it reports all of
its slave ports to the other peer units. However, it is still necessary for that
Digi Passport unit to be operational to reach the Slave ports it controls.
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