User`s guide

Dialogic

Host Media Processing Software Release 4.1LIN Release Guide 21

Features

For HMP media quality, it is recommended that the guest operating system operates with

the ntpd process disabled to prevent NTP timing synchronization conflicts between the

guest operating system and the ESX server. Use the setup command from the console to

disable the ntpd feature prior to starting HMP software.

Resource Budgeting

The same HMP requirements for system resources are required when operating in a

VMware

ESXi environment. Refer to the Dialogic

Host Media Processing Software

Release 3.0WIN Release Guide for those requirements.

The user is responsible for distributing the host system so enough resources are available

to the virtual machines at all times. In addition to the CPU affinity and timing settings

discussed, VMware

ESXi and vSphere provide a vast number of virtual machine

configuration parameters that affect the configuration and behavior of virtual resources,

such as reservation, shares, and resource pools that are outside of the scope of this

document but are very important in providing a virtual environment to HMP as close as

possible to a physical server environment.

Network Configuration

By default, VMware

ESXi provides one virtual switch that handles all virtual machine

network traffic according to each virtual machine’s IP and MAC addresses and VMware

ESXi management network traffic. Virtual machines can be assigned to virtual networks,

and these to virtual switches in various network topologies, utilizing all available host

physical network interfaces. The system integrator should carefully consider the virtual

network layout based on the aggregated network traffic of all virtual machines and the

capabilities and number of the physical network interfaces.

3.6.3 Density Limits

Aggregate density limits were tested at the currently supported limits as physical

platforms. It is important to note that density projections are platform specific and are

susceptible to the performance capabilities of the underlying hardware platform (host),

and to the number of virtual machines. Initial density results show that the aggregate

density of virtual machines running on the same host may be slightly less than the total

capacity of the physical server. This is the result of additional overhead associated with

each virtual machine.

3.7 Dialogic

HMP Interface Boards

For a list of currently supported boards, see Section 6.1, “Dialogic® HMP Interface

Boards”, on page 45. For technical specifications, see

http://www.dialogic.com/products/ip_enabled/hmp_enabled_boards.htm.

For information on configuring DNI boards, see the Dialogic

HMP Software for Linux

Configuration Guide.