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This section describes SBC SWe hardware and software requirements and recommendations.

To install and configure the SBC SWe, make sure the Virtual Machine (VM) host meets the following recommended hardware, server platform and software requirements.

 

The recommended hardware and software settings are intended to ensure optimum SBC SWe stability and performance. If the recommended settings are not used, the SBC SWe system may not behave as expected.

SBC SWe for VMware – Server Hardware Requirements

The following table lists the server hardware requirements:

Table : Server Hardware Requirements

 
 ConfigurationRequirement
Processor

Intel Xeon processors (Nehalem micro-architecture or above) with 6 cores and above (processors should support hyper threading).

Sonus recommends using Westmere (or newer) processors for better SRTP performance. These processors have the AES-NI instruction set for performing cryptographic operations in hardware.

The supported CPU Family Number is 6 and CPU Model Number must be newer than 26. Refer to Intel Architecture and Processor Identification document for more information.

ESXi 6.5 and later releases requires approximately 2 physical cores to be set aside for hypervisor functionality. Number of VMs which can be hosted on a server needs to be planned accordingly.

 RAMMinimum 24 GB
Hard DiskMinimum 500 GB
Network Interface Cards (NICs)
Minimum 4 NICs, if physical NIC redundancy is not required.

Otherwise, 8 NICs (preferably with SR-IOV capability to support future SWe optimizations).

Make sure NIC has multi-queue support which enhances network performance by allowing RX and TX queues to scale with the number of CPUs on multi-processor systems.

Only Intel I350 Ethernet adapter is supported for configuring as VMDirectPath I/O pass-through device.

Ports

Number of ports allowed:

  • 1 Management port
  • 1 HA port
  • 2 Media ports

The SBC SWe software only runs on platforms using Intel processors. Platforms using AMD processors are not supported.

 

BIOS Setting Recommendations

Sonus recommends the following BIOS settings for optimum performance:

Table : Recommended BIOS Settings for Optimum Performance

BIOS ParameterRecommended
Setting
Details
Intel VT-x (Virtualization Technology)EnabledFor hardware virtualization
Intel VT-d (Directed I/O)EnabledIf available
Intel Hyper-ThreadingEnabled 
Intel Turbo BoostEnabled 
CPU power managementMaximum Performance 

For example, the BIOS settings are shown below for HP DL 380p Gen8 servers. For BIOS settings of other servers, refer to the respective vendor website.

 

Table : BIOS Setting Recommendations for HP DL380p Gen8 Server

BIOS ParameterRecommended
Setting
Default Value
HP Power Profile Maximum PerformanceBalanced Power and Performance
Thermal ConfigurationMaximum CoolingOptimal Cooling
HW PrefetchersDisabledEnabled
Adjacent Sector PrefetcherDisabledEnabled
Processor Power and Utilization MonitoringDisabledEnabled
Memory Pre-Failure NotificationDisabledEnabled
Memory Refresh Rate1x Refresh2x Refresh
Data Direct I/OEnabledDisabled
SR-IOVEnabledDisabled
Intel® VT-dEnabledDisabled

SBC SWe for VMware – Software Requirements

The following are the VMware ESXi and SBC SWe software requirements:

VMware ESXi Requirements

Table : VMWare ESXi Requirements

SoftwareVersionTested and Qualified VersionFor More Information
vSphere ESXi 5.1 or above
  • VMware 6.0 tested with VM version 11
  • Customized ESXi images for various server platforms are available on VMware and Hardware platform vendor sites.
    • It ensures that all the required drivers for network and storage controllers are available to run ESXi server.
    • Most of the customized ESXi images comes with customized management software to manage server running ESXi software.
    • Customized ESXi images for HP ProLiant and IBM servers are available at:
vSphere Client5.1 or above VMware Knowledge Base
vCenter Server5.1 or above vCenter Server

The VMware Standard License will be sufficient for SWe SBC unless the PKT interfaces for SBC SWe needs to be configured in Direct IO Pass-through mode. In that case, the Enterprise Plus version of VMware ESXi software is required.

 

Third-Party References:

Downloading the SBC SWe Software Package

For more information, refer to Downloading SBC SWe Installation Files from SalesForce Portal.

Sonus Recommendations for Optimum Performance

Following are recommended VMware ESXi and SBC SWe virtual machine (VM) configurations. 

General ESXi Recommendations

Following are recommended VMware ESXi configurations:

  • Plan enough resources (RAM, CPU, NIC ports, hard disk, etc.) for all the virtual machines (VMs) to run on server platform, including resources needed by ESXi itself.
  • Allocate each VM only as much virtual hardware as that VM requires. Provisioning a VM with more resources than it requires can, in some cases, reduce the performance of that VM as well as other virtual machines sharing the same host.
  • Disconnect or disable any physical hardware devices (Floppy devices, Network interfaces, Storage controllers, Optical drives, USB controllers, etc.) under BIOS settings that you will not be using to free up interrupt/CPU resources.
  • Use virtual hardware version 8 and above while creating new VMs (available starting ESXi 5.x). This provides additional capabilities to VMs such as supporting VM with up to 1 TB RAM, up to 32 vCPUs etc.

ESXi Host Configuration Parameters

Use VMware vSphere client to configure the following ESXi host configuration parameters on the Advanced Settings page (see figure below) before installing the SBC SWe:

Table : ESXi Advanced Settings

 

ESXi Parameter

ESXi 5.1 Settings ESXi 5.5 Settings ESXi 6.0 Settings

Recommended

Default

Recommended

Default

Recommended

Default

Cpu.CoschedCrossCall

0

1

0

1

0

1

Cpu.CreditAgePeriod

500

3000

1000 1000 1000 1000

DataMover.HardwareAcceleratedInit

0

1

0

1

0

1

DataMover.HardwareAcceleratedMove

0

1

0

1

0

1

Disk.SchedNumReqOutstanding

256

32

(error) (error) (error) (error)

Irq.BestVcpuRouting

1

0

1

0

1

0

Mem.BalancePeriod

0

15

0

15

(error)

(error)

Mem.SamplePeriod

0

60

0

60

(error)

(error)

Mem.ShareScanGHz

0

4

0

4

0

4

Mem.VMOverheadGrowthLimit

0

4294967295

0

4294967295

0

4294967295

Misc.TimerMaxHardPeriod

2000

100000

2000

100000

2000

100000

Misc.TimerMinHardPeriod

100

100

(error) (error) (error) (error)

Net.AllowPT

1

0

1

0

1

0

Net.MaxNetifRxQueueLen

500

100

500

100

500

100

Net.MaxNetifTxQueueLen

1000

500

1000

500

1000

500

Net.NetTxCompletionWorldlet

0

1

0 1 (error) (error)

Net.NetTxWordlet

0

2

1 2 1 2

Numa.LTermFairnessInterval

0

5

0

5

0

5

Numa.MonMigEnable

0

1

0

1

0

1

Numa.PageMigEnable

0

1

0

1

0

1

Numa.PreferHT

1

0

1

0

1

0

Numa.RebalancePeriod

60000

2000

60000

2000

60000

2000

Numa.SwapInterval

1

3

1

3

1

3

Numa.SwapLoadEnable

0

1

0

1

0

1

 

 

Figure : ESXi Parameters

 

VM Configuration Recommendations

Table : VM Configuration Recommendations

 
 SettingsRecommended Configuration
vCPU

Minimum 4 vCPUs required. But In case where there are only four physical cores available, you must configure the VM with only 3 vCPUs. Any number of vCPUs may be configured depending upon the call capacity requirements.

  • Keep Resource Allocation setting marked as 'unlimited' with CPU freq. set to "physical processor CPU speed multiplied by number of vCPUs assigned to VM".

3 vCPUs configuration is supported only from SBC 4.2.4 release.

VMDirectPath mode is only supported for PKT ports for vCPUs >=4.

Note

For detailed information on the VM configuration, refer to the section Creating a New SBC SWe VM Instance with VMXNET3 or Creating a New SBC SWe VM Instance with Direct IO Passthru based on the NIC type used. 

 vRAM

Keep Resource Allocation setting marked as 'unlimited'. Reserve the memory based on call capacity and configuration requirements. Refer to SBC SWe Performance Metrics for supported call capacities with different configuration limits.

Virtual Hard Disk

Set Hard Disk (virtual) size as 100 GB or more (based on requirements of retaining CDRs, logs, etc. for number of days)

    • Use Thick provisioning (eager zero)
    • Hard disk size cannot be changed once SBC SWe software is installed
vNICs

Set number of virtual NICs as 4 (1-MGMT, 1-HA, 1-PKT0 and 1-PKT1).

  • Use only VMXNET3 driver
  • Always use automatic MAC address assignment option while creating vNICs.
  • Associate each vNIC to separate vSwitches
  • Use ESXi NIC teaming feature to achieve redundancy at physical NIC level.
vSwitch settings
  • Use four different vSwitches for each vNICs onSBCVM. This ensures various traffic to be physically separated on SBC.
    • Assign 1 physical NIC port (1 Gbps) to each vSwitch if physical NIC redundancy is not needed, otherwise assign 2 physical NIC ports (in active-standby mode using NIC team feature) to each vSwitch.

      The same physical NIC port cannot be associated with different vSwitches.

  • Use four different virtual networking labels, each with different VLANs or subnets.
  • Always run active and standby SBC VMs on different physical servers
  • Disable VM logging

Make sure the Processors, ESXi version and VM configuration (vCPUs, vRAMs, Virtual Hard Disk, vNICs, and vSwitch Settings) must be identical for SBC SWe HA pair.

Make sure that the BIOS and ESXi settings and recommendations must not be changed once it is applied on the server.

On a server with a single 4 cores processor, ESXi 6.5 and above releases are not supported since there is not enough CPU available for launching 3 vCPUs SBC SWe VM after considering overhead required for ESXi.