PRELIMINARY
Customer Support (202) 333-7031
4-1
The
ioLink 4
modem has an embedded agent for remote monitoring and control using a Network
Management Station (NMS). Communication between the agent and the NMS is performed through an
asynchronous serial connection at the male DE-9 connector labeled “Remote Control” on the back of the
modem. Version 1.1.1 of the control software allows communication with a PC (or equivalent); later
versions will allow dial-up connections via an external modem. To be SNMP-compliant, User Datagram
Protocol (UDP) packets are used as the communication protocol on the serial connection. Any NMS that
can direct UDP packets through a serial port may communicate with the agent. As an alternate means of
communicating with the embedded agent, a DOS-based console program that accepts keyboard entry of
SNMP-type Set, Get and Next commands, and then communicates with the agent via UDP packets, is
available from
ioWave
.
4.1 Functionality
The agent is built to conform to the DS1 Management Information Base (MIB) outlined in RFC 1406. At
the present time we do not have the ability to track all of the statistics, but this feature is under current
development. Also, a proprietary MIB has been developed to allow the user to monitor and control other
sections of the modem. This proprietary MIB is available from
ioWave
. The proprietary MIB includes
variables to implement, through SNMP, all of the non-test functionality that is available at the front panel
(via the LCD and keypad).
There are four important areas of monitor, or control, that are available through either the DS1 MIB or the
proprietary MIB which are:
•
Configuration
•
Test
modes
•
Performance
monitoring
•
Error/alarm
monitoring.
The features associated with each of these are discussed on the following pages.
SECTION 4 NETWORK MANAGEMENT FOR ioLink 4
