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CHAPTER 1
Voice Health Monitor Overview
These topics provide an overview of the VHM application:
• Overview of VHM, page 1-2
• How VHM Integrates with Third-Party NMSs, page 1-9
• Device Types that VHM Manages, page 1-9
• VHM Support for Cisco CallManager, page 1-11
• Locating the Supported Device List, page 1-13
• How VHM Works with the CiscoWorks2000 Server, page 1-13
• Starting the VHM Application, page 1-14
• Getting Started with VHM, page 1-14
User Guide for Voice Health Monitor
78-11324-02
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Chapter 1 Voice Health Monitor Overview Overview of VHM Overview of VHM VHM helps network administrators and network operators determine and maintain the stability of the VoIP network within their enterprise. VHM achieves this goal by using: • A series of availability and health checks on the VoIP equipment in the network. • A fault detection and escalation system to notify the users of any faults or exceptions detected. VHM integrates with network management systems (NMSs) such as HP OpenV
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Chapter 1 Voice Health Monitor Overview Overview of VHM VHM correlates the collected information and generates events on voice components that can be viewed in the Monitoring Console or on the Real-Time Dashboard. Users can also view device level faults in the DFM Monitoring Console. Alarms for both VHM and DFM can be seen from the Monitoring Console. VHM and DFM share many features as well as some components of their architectures. VHM and its commonality with DFM are described in more det
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Chapter 1 Voice Health Monitor Overview Overview of VHM VHM and DFM Interdependencies Note For all DFM references in this guide, refer to the User Guide for Device Fault Manager for more detailed information. Device Fault Manager (DFM) and VHM both analyze Cisco device failures. The two products often identify problems before users of network services realize that a problem exists. Both VHM and DFM: • Use a top-down approach that starts with users identifying problems and their symptoms: –
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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 ru
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Chapter 1 Voice Health Monitor Overview Overview of VHM Table 1-1 Interdependencies between VHM and DFM (continued) Component or Feature Description of Dependency Inventory Collection Inventory Collection synchronizes the VHM device list with DFM; during this process, voice-enabled devices that have been added to or deleted from DFM inventory will also be added to or deleted from VHM inventory. When Inventory Collect All is triggered in VHM, it sends a rediscovery trigger to DFM. After DFM
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Chapter 1 Voice Health Monitor Overview Overview of VHM Table 1-1 Interdependencies between VHM and DFM (continued) Component or Feature Description of Dependency Device classification VHM and DFM classify devices differently. For example, Cisco routers differences between VHM and Catalyst switches are managed by both VHM and DFM. However, and DFM DFM classifies Cisco routers as Router class, while VHM classifies routers as Voice Gateways. Note VHM only manages Cisco routers and Catalyst sw
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Chapter 1 Voice Health Monitor Overview Overview of VHM Figure 1-1 illustrates the architecture that VHM shares with DFM. Figure 1-1 VHM Architecture Monitoring Console Adminstration Real-Time Console Dashboard DFM consoles DFM Events generated by DFM server VHM server SNMP traps DFM broker SNMP/HTTP polled info SNMP/HTTP SNMP polled info traps IP IP Media servers IP Managed network User Guide for Voice Health Monitor 78-11324-02 1-8 51198
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Chapter 1 Voice Health Monitor Overview How VHM Integrates with Third-Party NMSs How VHM Integrates with Third-Party NMSs VHM can be integrated with third-party vendors’ NMSs such as HP OpenView Network Node Manager. VHM integrates with an NMS in two ways: • Although VHM receives traps only from DFM, DFM can receive traps from an NMS or directly from devices. As a result, the traps DFM forwards to VHM may have come from an NMS or from a device. See Installing and Setting Up the Device Fault
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Chapter 1 Voice Health Monitor Overview Device Types that VHM Manages Table 1-2 Voice Device Groups (continued) Group Description Phone Access Switch Catalyst switches with Ethernet ports that support IP phone connections and can supply power to IP phones. Note If a switch has both Ethernet and Voice Gateway modules, the switch will appear only under VoiceGateway in the Administration Console. In the Real-Time Dashboard, it will appear in both the VoiceGateway and the Phone Access Switch gr
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Chapter 1 Voice Health Monitor Overview VHM Support for Cisco CallManager Table 1-2 Voice Device Groups (continued) Group Description VoiceMailGateways Digital PBX Adapter (DPA) devices that provide Octel Voice Mail integration to Cisco CallManager. In the Summary View, VoiceMailGateways are summarized in one row. MonitoredPhone Selected IP phones monitored. In the Summary View, all monitored phones are summarized in one row. For each voice device group, the following information is display
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Chapter 1 Voice Health Monitor Overview VHM Support for Cisco CallManager • Configuration of synthetic transaction on Cisco CallManager, and monitoring the transactions • Monitoring of connectivity between Cisco CallManager and various voice gateways (for example, digital voice gateway DT24+ and DE30+ running skinny protocol, voice gateways having FXS and FXO ) Cisco CallManager Release 3.1 You receive all the functionality of Cisco CallManager 3.0(5) plus the following: • Monitoring of Gat
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Chapter 1 Voice Health Monitor Overview Locating the Supported Device List • For Cisco CallManager 3.1 and 3.2, the Connectivity tab in the Real-Time Dashboard Device Detail View displays one row for a voice gateway port registered to a Cisco CallManager Cluster. The Active CallManager and the CallManager list populate the rows. • For Cisco CallManager 3.0, the Real-Time Dashboard Device Detail View displays a digital voice interface in the Interface tab. This displays the D-Channel status.
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Chapter 1 Voice Health Monitor Overview Starting the VHM Application Starting the VHM Application To start VHM from the CiscoWorks2000 desktop: Step 1 Click the Voice Health Monitor drawer from the CiscoWorks2000 desktop. The following applications and folders are displayed: • Real-Time Dashboard—Provides a summarized status of the voice network, grouping voice devices logically and allowing you to drill down into the details of each device and device group. See the “Using the Real-Time Das
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Chapter 1 Voice Health Monitor Overview Getting Started with VHM Table 1-3 Getting Started Tasks (continued) Log in as this CiscoWorks2000 To perform this task... security role... Then see... Schedule inventory collection Network Admin or “Scheduling Inventory Collection” Network Operator section on page 5-27 Configure synthetic transactions Network Admin or “Synthetic Transaction Overview” against CallManager Network Operator section on page 6-1 Examine a Real-Time Dashboard Users in all f
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Chapter 1 Voice Health Monitor Overview Getting Started with VHM User Guide for Voice Health Monitor 78-11324-02 1-16
