RAD Data comm LRS-24 - Manual (Page 25)

LRS-24 Installation and Operation Manual Chapter 1 Introduction
Functional Description 1-13
Management
CM-1 Management Capabilities
An ASCII terminal can be used as a supervision terminal to manage the CM-1
module. The supervision terminal is connected to one of the RS-232 asynchronous
serial supervisory ports (one port is located on the CM-1 module itself and the
second port is located on the interface module serving the CM-1 module).
The CM-1 module operates as an interface module that does not process the
management information, but only transfers the management traffic transparently
to the modules installed in the LRS-24. Therefore, the supervision terminal is
controlled by the software stored in the managed modules, and the management
capabilities depend on the capabilities of the managed modules.
For a description of the management activities supported by a terminal connected
to the CM-1 module, refer to the Installation and Operation Manuals available for
the modules installed in LRS-24.
CM-2 Management Capabilities
The CM-2 module enhances the management capabilities available to the user by
including three different management functions:
• SNMP management. For SNMP management, the CM-2 module
communicates via an additional management interface located on the
interface module serving the CM-2 module. Currently, two types of interfaces
are available: an Ethernet 10BaseT interface (for UTP and STP media), and an
Ethernet 10Base2 interface (for coaxial media). This configuration is illustrated
in Figure 1-8.
• SNMP management communication with an LRS-24 module that includes
an SNMP agent is handled by an internal SNMP agent and bridge/router
located on the CM-2 module. To enable SNMP management of modules
without SNMP agents, the CM-2 module includes a proxy agent that converts
the management traffic to the proprietary internal protocol used to manage
such modules.
• Management by an ASCII terminal operating as a supervision terminal. The
terminal, which is controlled by the software stored in the managed modules,
connects to the serial RS-232 asynchronous supervisory port located on the
CM-2 module (see Figure 1-8). The management capabilities available through
the terminal are similar to those available through the CM-1 module.
• Management by means of Telnet. The CM-2 also supports the Telnet
protocol. This enables remote management via the same command line
interface used with a supervision terminal. Telnet uses TCP/IP communication
through the Ethernet port of the CM-2 card.
• Management via RS-232 by Slip Protocol with SNMP management.
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