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In this section...

Table of Contents
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Overview

The

Spacevars
0product2
 performance metrics for simultaneous sessions for various call scenarios are summarized in the "Benchmarking Results" section of the following pages. Note that these numbers apply to our recommended CPU and memory configurations, and the results may vary depending on the actual CPUs used. Exceeding these simultaneous sessions metrics may result in poor call performance, including longer call setup times and/or poor voice quality. Sonus recommends maintaining call rates within the performance limits benchmarked below.

Server and VM Details

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1Server and VM Details

 

Configuration

Server DetailVM Details

 

Max Link
Size

Server TypeCPU Speed
(GHz)		Processor
sockets		RAM
(GB)		HyperthreadingvCPUs
allocated		Memory
(GB)		Disk Size
(GB)		Network
Interface Mode
Config-1HP DL380 Gen10
Gold 6140		2.32256ACTIVE432100Pass-Through Mode
 (Direct I/O)		10 Gbps
Config-28Pass-Through Mode
 (Direct I/O)
Config-320SR-IOV
Config-432SR-IOV

 

Benchmarking Setup

The two test beds used to collect benchmarking data are depicted below.


Info

The VM is hosted on a single NUMA node, where the NIC is connected.

Caption
0Figure
1Benchmarking Setup for SBC SWe Using SR-IOV interfaces

 

 

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0Figure
1Benchmarking Setup for SBC SWe Configured in Pass-Through Mode (Direct I/O)

 

 

Performance Metrics

This section includes Sonus' benchmarking results using the following configurations with and without DoS. Please contact your Sonus representative if you are interested in benchmarking data for other call scenarios.

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PageWithExcerptVMware Hypervisor Performance Metrics

 

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PageWithExcerptKVM Hypervisor Performance Metrics

 

SBC SWe Memory Sizes Based on Capacity Requirements

The following tables define the amount of VM memory required based on the call capacity expected and the configuration requirements.

Info
titleInfo

The

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uses the small configuration when the VM memory is less than 18 GB and the large configuration when the VM memory is 18 GB or greater. See  SBC Provisioning Limits for an explanation of
Spacevars
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small and large configurations.

Info
titleNote

The SBC SWe requires a minimum memory size of 10 GB.

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0Table
1Small Configuration
3Small Configuration

Number of Sessions
Desired

Memory Size
Required

5,000

10 GB

18,000

14 GB
24,00016 GB

28,000

17 GB
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0Table
1Large Configuration
3Large Configuration

Number of Sessions
Desired

Memory Size
Required

12,000

18 GB

22,000

20 GB
 

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Increasing RAM on Active SBC SWe Systems

Use the following procedure to increase RAM size on active (live) systems to meet the desired SBC SWe session capacity.

StepAction
1

Power down the designated Standby SBC.

2

Increase the RAM size of the VM system, and then power-on the Standby SBC.

3

Perform a manual switchover, and then power-down the previously Active SBC. Refer to the following pages for details:

EMA: System - Admin

CLI: Admin - CLI

4

Increase the RAM size of the VM system for the powered-down SBC, and then power it back up.

5Manually switchover to revert the Active/Standby SBCs back to their original states prior to beginning this procedure.
6Follow LSWU steps if you are upgrading to the next release.

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