Specifications

Installation and Operation Manual Chapter 1 Introduction
FCD-E1LC Ver. 1.0 System Management Considerations 1-21
activation of test loops, reading of performance statistics, etc.) can be performed
in three ways:
• Supervision Terminal
• SNMP Management
• Telnet.
Management Access Options
The control subsystem of FCD-E1LC systems supports both out-of-band and
inband management access.
• For out-of-band management, the connection is made through the front
panel serial port, via the SLIP or PPP protocol. The routing is performed with a
RAD proprietary routing protocol.
• Inband management is performed via the main E1 link, and/or the sublink
(optional). See
Appendix B for details.
Supervision Terminal Capabilities
The supervision terminal provides a simple, command-line based human interface.
The terminals can communicate with the managed FCD-E1LC systems via the
CONTROL DCE serial RS-232 communication port.
The serial port is generally configured as a DCE port, for direct connection to a
terminal, but can also be configured as a DTE port when it is necessary to
connect the terminal via a modem link, or a low-speed data multiplexer channel.
Thus, a remote operator located at a central site can perform all the functions
available from a supervision terminal directly connected to the FCD-E1LC system.
Optional password protection is also available.
The communication data rate of the serial port can be selected in accordance with
system requirements (1200, 2400, 4800, 9600, 19200, 38400, 57600, or
115200 bps). Automatic data rate identification (Autobaud function) is also
available. Data word format is configurable: one start bit, eight data bits, selectable
parity (odd, even, or none), and one or two stop bit.
Since continuous communication with the FCD-E1LC system is necessary only
when management activities are actually performed, one terminal can manage
multiple FCD-E1LC units using a polling protocol, with the connection to the
individual units being made by means of multi-drop modems or digital sharing
devices. For polling purposes, each FCD-E1LC can be assigned an eight-bit
address, for a maximum of 255 nodes (the zero address is reserved for
non-polled communication).
SNMP Management Capabilities
The FCD-E1LC system includes an SNMP agent that can communicate out-of-band
and/or inband through the dedicated management router of the FCD-E1LC system.
To permit SNMP management, you must configure and enable the SNMP agent.
Appendix B provides information on the required parameters.
A basic management topology is shown in
Figure 1-7 . In this example, a network
management station is attached to an Ethernet LAN. A remote access LAN
extender, MBE-RAS/A, is located near the managed equipment (e.g., FCD-E1LC,