
Configuring Remote Access
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To communicate with the RMON agent software on the DCM board, the router
requires a software subsystem, called DCM middleware (DCMMW). This
software subsystem enables and configures an installed DCM board.
Using Site Manager or the Technician Interface, you configure the DCMMW to
• Enable the DCM with a default configuration
• Modify the DCM configuration
• Boot the DCM
• Disable the DCM
To set up RMON configurations and to view statistics, use Optivity Design and
Analysis software (AN and ANH only) or a third-party RMON network
management application.
Remote Network Monitoring (RMON)
RFC 1757 is an extension of SNMP. It specifies a standard MIB that defines both
parameters for recording statistics and the actual statistics themselves.
The purposes of RMON include
• Monitoring network performance.
You can configure the DCM to continuously perform diagnostics and monitor
network performance. If a network failure occurs, the DCM can store
statistical information about the failure. The management stations can use this
information to investigate the cause of the failure.
• Detecting and reporting problems.
You can configure the DCM to recognize and continuously check for error
conditions.
• Collecting information for problem solving.
You can configure the DCM to give management stations information they
need to solve problems. For instance, the DCM can identify the hosts on a
network that generate the most traffic or errors.
Refer to “RMON Implementa
tion Notes,” later in this chapter, for issues you
should consider when using an Ethernet DCM for RMON.
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