Cisco Systems 78-11324-02 manual Voice Health Monitor Overview

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 switches that
	have VoIP cards or ports. See the “Device Types that VHM
	Manages” section on page 1-9 for more information.
Polling and threshold	Threshold parameters for voice-enabled routers and switches must be
parameters between VHM	set in DFM. However, threshold parameters for media servers must be
and DFM	set in VHM and are not shared with DFM.
	Polling parameters are not shared between VHM and DFM. However, it
	is best to synchronize them to avoid inconsistent polling of devices.
	Therefore, it is recommended that you set polling intervals the same in
	both VHM and DFM.

	User Guide for Voice Health Monitor
78-11324-02		1-7