
114084 Rev. A 7-1
Chapter 7
Configuring a Data Collection Module
This chapter describes how to configure an optional Ethernet Data Collection
Module (DCM) as an Ethernet remote monitoring (RMON) device, in the
following sections:
• Ether
net DCM and RMON Overview
• Enabling a DCM Using Site Manager
• Managing the DCM Using Site Manager
• Managing the DCM Using the Technician Interface
• RMON Implementation Notes
Ethernet DCM and RMON Overview
The Ethernet DCM physically connects to AN/ANH/ARN base modules and to
the ARN Ethernet expansion modules. It contains a Flash memory SIMM for its
own boot image and configuration file. The DCM runs RMON agent software that
• Gathers statistics by monitoring packets on an Ethernet segment
• Stores the information according to the RMON MIB specification, in
compliance with RFC 1757
Note: To run RMON on a Version 11.0 or higher Bay Networks router, the
router must be running a version 1.4 or higher DCM image. If the router has an
earlier version of DCM, the RMON Summary application returns an error
message telling you that the router does not support RMON. For information
on upgrading your router and the DCM image, refer to Upgrading Routers
from Version 7-10.xx to Version 11.0. The upgrading manual also describes
how to determine the version of DCM you are currently running.
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