user manual

1-5
User Guide for Voice Health Monitor
78-11324-02
Chapter 1 Voice Health Monitor Overview
Overview of VHM
Table 1-1 Interdependencies between VHM and DFM
Component or Feature Description of Dependency
DFM Installation A DFM version, which is compatible with VHM, must be installed
either on the same system as VHM or on a remote system where it is
network accessible to VHM. See Installing and Setting Up Voice Health
Monitor on Windows 2000 for server system requirements.
DFM Broker The DFM Broker maintains a list of active domain managers running on
the network and registered with the DFM Broker. Domain managers are
fault management server processes such as VHM and DFM. Each
domain manager is identified by name and the IP address and port the
domain manager is running on.
The VHM installation process can find the DFM Broker if it is installed
locally. If not, during installation, VHM prompts the user to enter the IP
address and port for the DFM Broker. VHM then registers the VHM
domain manager with the DFM broker.
SNMP Trap Receiving To receive SNMP traps for VoIP devices from DFM, VHM must update
the trap forwarding filter in DFM. When DFM receives a trap, it
forwards the trap based on the definition of the trap forwarding filter.
The VHM trap receiver receives the trap and analyzes it to generate an
event in VHM.