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Back to SBC Product Specifications

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JIRAIDAUTH	SBX-99207
REV5	UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
REV6	UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
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REV1	UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cbbf066d, userName='null'}

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In this section...

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Table of Contents

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Overview

The

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performance metrics for simultaneous sessions

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for various call scenarios are summarized in the "Benchmarking Results" section

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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

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may result in poor call performance, including longer call setup times and/or poor voice quality.

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recommends maintaining call rates within the performance limits

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benchmarked

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Benchmarking Setup

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below.

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1	Benchmarking Setup for SBC SWe Using Virtual NICs

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

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Server and VM Details

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1	Server and VM Details

Configuration

Server Detail

VM Details

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Max Link
Size

Server Type

CPU Speed
(GHz)

Processor
sockets

RAM
(GB)

Hyperthreading

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vCPUs allocated	Memory (GB)	Disk Size (GB)	Network Interface Mode
Config-1	HP DL380 Gen10

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Gold 6140

2.

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3

2

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256

ACTIVE

4

32

100

Pass-Through Mode
(Direct I/O)

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10

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Gbps
	Config-2

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8	Pass-Through Mode (Direct I/O)

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Config-3

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20

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SR-IOV

Config-4

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32

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* Intel I-350

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SR-IOV

Benchmarking Setup

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

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

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1	Benchmarking Setup for SBC SWe Using SR-IOV interfaces

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

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Performance Metrics

This section includes benchmarking results using the following configurations with and without DoS.

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Contact your

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representative if you are interested in benchmarking data for other call scenarios.

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Without DoS

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1	SBC SWe Large Direct 4vCPU Configuration (Without DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions
G.711 pass-through	408.69	25/180	4,500
G.729AB pass-through	291.99	25/520	13,000
G.729 to G.711 transcoded	4.34	2/57	114
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	105.46	25/160	4,000
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	236.81	25/100	2,500
Direct Media		78/258	20,124

With DoS

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1	SBC SWe Large Direct 4vCPU Configuration (With DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions	DoS Bandwidth (Mbps)
G.711 pass-through	955.38	25/180	4,500	546.68
G.729AB pass-through	948.62	25/520	13,000	656.62
G.729 to G.711 transcoded	949.34	2/57	114	945
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	950.18	25/160	4,000	844.71
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	950.07	25/100	2,500	715.25
Direct Media	953.67	78/258	20,124	953.67

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Without DoS

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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.

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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

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small and large configurations.

Info

title	Note

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

Info

title	Note

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

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Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions
G.711 pass-through	817.78	25/360	9,000
G.729AB pass-through	449	25/800	20,000
G.729 to G.711 transcoded	31.76	2/417	834
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	527	25/800	20,000
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	852.83	25/360	9,000
Direct Media		198/102	20,196

With DoS

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Small Configuration
3	Small Configuration

Number of Sessions Desired	Memory Size Required
5,000	10 GB
18,000	14 GB
24,000	16 GB
28,000	17 GB

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Large

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Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions	DoS Bandwidth (Mbps)
G.711 pass-through	950.45	25/360	9,000	133.07
G.729AB pass-through	949	25/800	20,000	500
G.729 to G.711 transcoded	942	2/417	834	910
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	949.61	25/720	18,000	475
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	950.01	25/360	9,000	97.18
Direct Media	953.67	198/102	20,196	953.67

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Configuration
3	Large Configuration

Number of Sessions Desired	Memory Size Required
12,000	18 GB
22,000	20 GB

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	TCP_Buffer_Size_64KB_Limitation
	TCP_Buffer_Size_64KB_Limitation

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.

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

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Without DoS

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1	SBC SWe Large Virtual 4vCPU Configuration (Without DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions
G.711 pass-through	349.65	25/154	3,850
G.729AB pass-through	202.14	25/360	9,000
G.729 to G.711 transcoded	4.34	2/57	114
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	105.48	25/160	4,000
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	260.49	25/110	2,750
Direct Media		38/526	19,988

With DoS

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1	SBC SWe Large Virtual 4vCPU Configuration (With DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions	DoS Bandwidth (Mbps)
G.729AB pass-through	350.35	25/260	6,500	204.35
G.729 to G.711 transcoded	348.34	2/40	80	345
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	349.93	25/160	4,000	244.46
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	343.59	25/110	2,750	83.1
Direct Media	349.14	38/526	19,988	349.14

Maximum Initial (challenged) REGISTER Rate for Config-3

The following table lists the maximum initial (challenged) REGISTER rate with background load on SWe under Large configuration VM.

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1	Maximum Initial (challenged) REGISTER Rate with Background Load (Config-3)

	Initial SIP Registration/Sec	Number of Subscribers	Registration Refresh (Seconds)	SIP Calls/Sec	Concurrent G.711 (20 ms) Calls
UDP	100	32,000	30	30	2,700

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Expand

Without DoS

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1	SBC SWe Large Virtual 8vCPU Configuration (Without DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions
G.729AB pass-through	269.53	25/480	12,000
G.729 to G.711 transcoded	22.62	2/297	594
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	316.4	25/480	12,000
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	350.48	25/148	3,700
Direct Media		78/256	19,968

With DoS

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1	SBC SWe Large Virtual 8vCPU Configuration (With DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions	DoS Bandwidth (Mbps)
G.729AB pass-through	349.63	25/480	12,000	80.01
G.729 to G.711 transcoded	348.34	2/297	594	325.64
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	349.93	25/480	12,000	33.38
Direct Media	349.14	78/256	19,968	349.14

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Expand

Without DoS

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1	SBC SWe Small Server 3vCPU Configuration (Without DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions	DoS Bandwidth (Mbps)
G.711 pass-through	73	9/90	810	0
G.729AB pass-through	70.75	9/350	3,150	0
G.729 to G.711 transcoded	3.04	1/90	90	0
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	16.61	9/150	1.350	0
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	59.67	9/70	630	0
Direct Media	70.14	28/714	19,992	70.14

With DoS

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1	SBC SWe Small Server 3vCPU Configuration (With DoS)

Call Scenario/Configuration	Total Bandwidth (Mbps)	CPS/CHT	Simultaneous Sessions	DoS Bandwidth (Mbps)
G.729 to G.711 transcoded	70.33	1/90	90	70.14
G.729AB pass-through sessions,TLS/SRTP enabled on Ingress	70.42	4/79	1,350	62.08
G.711 pass-through sessions,TLS/SRTP enabled on Ingress	68.26	9/70	630	8.58
Direct Media	70.14	28/714	19,992	70.14

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Versions Compared

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Key

Overview

Benchmarking Setup

Server and VM Details

Benchmarking Setup

Performance Metrics

Without DoS

With DoS

Without DoS

SBC SWe Memory Sizes Based on Capacity Requirements

With DoS

Increasing RAM on Active SBC SWe Systems

Without DoS

With DoS

Maximum Initial (challenged) REGISTER Rate for Config-3

Without DoS

With DoS

Without DoS

With DoS