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Chapter 3
Device Management
an unknown DNP destination address is received from the IP network, it is sent to all local serial ports configured
as DNP ports.
NOTE
Learned addresses are not recorded in the Device Address Table.
UDP transport is used during the DNP address learning phase.
An aging timer is maintained for each DNP address in the table, and is reset whenever a DNP message is sent to
or received for the specified address.
This learning facility makes it possible to configure the DNP3 protocol with a minimum number of parameters: a
TCP/UDP port number, a learning network interface and an aging timer.
DNP Broadcast Messages
DNP addresses 65521 through 65535 are reserved as DNP3 broadcast addresses. RUGGEDCOM ROX II
supports DNP3 broadcast messages. DNP broadcast messages received on local serial ports are transmitted to
all IP Addresses in the Device Address Table (whether learned or statically configured).
When a DNP broadcast message is received from the IP network, it is transmitted on all local serial ports
configured as DNP ports.
Section 3.20.1.4
Incoming/Outgoing Serial Connections
The RUGGEDCOM RX1500/RX1501/RX1510/RX1511/RX1512 supports up to 32 TCP/UDP connections per
serial port, up to a total of 128 TCP/UDP connections to the serial server.
Section 3.20.2
Viewing a List of Serial Port Protocols
To view a list of serial port protocols configured on the device, type:
show interfaces serial port protocol
If protocols have been configured, a table or list similar to the following example appears:
ruggedcom# show interfaces serial port protocol
IFNAME
PROTOCOL
-------------------
ser-3-1
none
ser-3-2
none
ser-3-3
none
ser-3-4
none
ser-3-5
none
ser-3-6
none
If no serial port protocols have been configured, add protocols as needed. For more information, refer to
Section 3.20.3, "Adding a Serial Port
114
Protocol".
RUGGEDCOM ROX II
CLI User Guide
Incoming/Outgoing Serial Connections
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Troubleshooting
