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Panel

In this section:

Table of Contents
maxLevel4

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SBC SWe Lite Call Performance

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Note

Note: For details on calculating DSP Requirements and determination of VM attributes to host the SBC SWe Lite, refer to Calculating DSP Requirements for SBC SWe Lite.


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MultiExcerptNamePerformance


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Caption
0Table
1Call Performance - KVM, VMware, Microsoft Hyper-V On-Premises Deployments


SWe Lite Virtual Machine Resources, applicable to all supported hypervisors (KVM, VMware® Microsoft Hyper-V)Maximum SIP
with corresponding 
RTP Media Sessions1
SIP Signaling Session LimitsRTP Media Session LimitsMaximum Call Rate Setup (CPS)
Media Manipulation Mode2 (Requires Virtual DSP Intervention) Proxy Media Mode (No Virtual DSP Intervention)Audio/Video Streams3
vCPU #GB RAMMaximum TCP/TLS-based SIP↔SIP Signaling Sessions7Maximum SIP Registrations (60 minute refresh rate)No transcode, with in-band services scenario8Default scenario: G.711/G.729ab RTP ↔ G.729ab/G.711SRTP, with in-band services9Encryption services: G.711 RTP ↔ G.711 SRTP8No encryption services: RTP ↔ RTP/SRTP ↔ SRTP10
11 GiB1003001000100100300630062510
21.5 GiB10001000100020020010006100065010
42.5 GiB100010004/600550004504/60054504/6005100061000610010
102.5 GiB10001200 5000 1200  1200 1200 1200 10010



1Maximum number of concurrent sessions. The number assumes that calls are made using RTP/SRTP Proxy mode, or a mix of RTP/SRTP Proxy, media manipulation and video calls.

2Maximum number of concurrent sessions with virtual DSP intervention. See Transcoding Capacity below for details.

3Maximum number of concurrent audio/video sessions. The total system capacity is affected if A/V calls are introduced into the call mix. Maximum number of calls is reduced by the number of video streams used. For example, 1 vCPU instance processing 25 A/V calls has a total capacity of:  300 (max number of calls) - 25 (calls processed with 1 vCPU instance) = 275 calls.

4Maximum number of concurrent sessions (when virtual DSP intervention is applied to 450 sessions) is 1000.

5Maximum number of concurrent sessions (when virtual DSP intervention is applied to 600 sessions) is 600.

6Maximum number of proxy media mode concurrent sessions is reduced by a count equivalent to the active number of concurrent RTP media manipulation sessions. Refer to note 1.

7Supported by *-SG/*-SGX/*-SP licenses. 

8Supported by *-SGX/*-SP licenses.

9Supported only by *-SP licenses.

10Supported by -SGX/-SG/-SP. See "SIP Signaling & RTP Direct Media/RTP Proxy Sessions without Encryption Services" in Working with Licenses.


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1Call Performance - Microsoft Azure Cloud


Azure Virtual Machine (VM) ResourcesMaximum SIP
with corresponding 
RTP Media Sessions1
SIP Signaling Session LimitsRTP Media Session Limits
Media Manipulation Mode2 (Requires Virtual DSP Intervention) Proxy Media Mode (No Virtual DSP Intervention)
VM InstancevCPUMaximum TCP/TLS-based SIP↔SIP Signaling Sessions4Maximum SIP Registrations (60 minute refresh rate)No transcode, with in-band services scenario5Default scenario: G.711/G.729ab RTP ↔ G.729ab/G.711SRTP, with in-band services6Encryption services: G.711 RTP ↔ G.711 SRTP5No encryption services: RTP ↔ RTP/SRTP ↔ SRTP4

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B1ms110101001010103103
B2s

...

2

...

100

...

100

...

500

...

30

...

30100

...

3

...

1003

...

 DS1_v2

...

1

...

300

...

3001000

...

100

...

100

...

3003

...

3003

...

DS3_v24100010005000400400

...

500310003

1Maximum number of concurrent sessions. The number assumes that calls are made using RTP/SRTP Proxy mode, or a mix of RTP/SRTP Proxy, media manipulation and video calls.

2Maximum number of concurrent sessions with virtual DSP intervention. See Transcoding Capacity below for details.

3Maximum number of proxy media mode concurrent sessions is reduced by a count equivalent to the active number of concurrent RTP media manipulation sessions. Refer to note 1.

4Supported by -SG-CLOUD/-SGX-CLOUD/-SP-CLOUD licenses. 

5Supported by -SGX-CLOUD/-SP-CLOUD licenses.

6Supported by -SP-CLOUD license.




Note
titleNumber of RTP Port Pairs must be increased above maximum call capacity

The number of RTP Port Pairs must be configured slightly larger than the actual number of ports required to support the projected number of calls. We recommend you over-allocate the number of port pairs by approximately 25 - 30% above the number of calls you want to support. For details, see Configuring the Media System.


Note
titleCall Capacity Limitations
  • Call capacity is limited to 4 calls per second when Info level logging is enabled. Additional logging verbosity reduces the call capacity.
  • Although the call setup rate is 10 calls per second, if Call Admission Control (CAC) is enabled, calls over the rate limit will be rejected with the message 480 Temporary Not Available.



Anchor
Transcoding
Transcoding
Transcoding Capacity

The table below indicates the supported codecs and the maximum number of concurrent transcoded calls for specific CODEC codec combinations and system size. For the supported code list, refer to Protocols and Functions Supported.

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Transcoding Capacity - KVM, VMware, Microsoft Hyper-V On-premises Deployments (1vCPU, 2vCPU, 4vCPU)

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1Transcoding Capacity - KVM, VMware, Microsoft Hyper-V On-premises Deployments (1, 2, 4 vCPU)


Transcoding ScenarioVirtual Machine vCPU Count
CODEC 1CODEC 21 vCPU2 vCPU4 vCPU
G.711A-law or G.711u-lawG.711A-law or G.711u-law100200600
G.711A-law or G.711u-lawG.72380160480
G.711A-law or G.711u-lawG.726 or G.729100200600
G.711A-law or G.711u-lawAMR WB3876225
G.711A-law or G.711u-lawOpus2454165
G.711A-law or G.711u-lawT.3850100300


Transcoding Capacity - KVM, VMware, Microsoft Hyper-V On-premises Deployments (10 vCPU)

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1Transcoding Capacity - KVM, VMware, Microsoft Hyper-V On-premises Deployments (10 vCPU)


CODEC 1CODEC 210 vCPU
G.711A-law or G.711u-lawG.711A-law or G.711u-law1200
G.711A-law or G.711u-lawG.7291200
OpusG.711A-law/mu-law360





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Transcoding Capacity - Microsoft Azure Cloud Deployments

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1Transcoding Capacity - Microsoft Azure Cloud Deployments


Transcoding ScenarioMicrosoft Azure VM Instance
CODEC 1CODEC 2B1MS VM

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B2S VM

...

DS1_v2DS3_v2

...

G.711A-law or G.711u-lawG.711A-law or G.711u-law1030100

...

400
G.711A-law or G.711u-lawG.726 or G.7291030100400





SILK Capacity

The following tables outline the SILK performance and capacity.

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SILK Performance for Microsoft Azure Cloud Deployments

The following table outlines the SILK performance numbers for Microsoft Azure Cloud deployments.

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1SILK Performance for Microsoft Azure Cloud Deployments


Transcoding ScenarioMicrosoft Azure VM Size
B1msB2sDS1_v2DS3_v2
SILKNB SRTP -> G711U RTP103095400
SILKNB SRTP -> G729A RTP103050300
SILKNB SRTP -> SILKWB RTP103035200

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SILK Performance for On-premises Deployments

The following table outlines the SILK performance numbers for On-premises deployments.

Caption
0Table
1SILK Performance for On-premises Deployments


CodecVirtual Machine vCPU Count
1 vCPU2 vCPU4 vCPU
SILK-WB-G711U55135340
SILK-WB-G7293595230
SILK-WB-SILK-NB3588215
SILK-NB-G711U95200595
SILK-NB-G72950130325
G711U-SILK-NB

95

200595
G729-SILK-NB50130325
SILK-NB-WB3588215

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SBC SWe Lite Single Instance Capacities

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Caption
0Table
1SBC SWe Lite Maximum Configuration Values


Feature

Maximum supported

Number of Signaling Groups

100

Cumulative number of channels* across all the Signaling Groups

1000 (1 vCPU)

4000 (2 vCPU, 4 vCPU, or 10 vCPU)

Call Route Tables100

Call Route Entries (all Call Route Tables combined)

1000

Static Routes1024

Registrar Table entries

1000 (1 vCPU, 1 GiB)
5000 (2 vCPU, 1.5 GiB)
5000 (4 vCPU or 10 vCPU, 2.5 GiB)

Contact Registrant Table entries

1000

Transformation Tables50

Transformation Table entries

1000

Media Profiles entries

20

Callback Number Tables80
Callback Numbers (in Callback Numbers List)16
SIP Server Table entries40
IP/FQDN or DNS-SRV entries (within each SIP Server Table entry)99
SIP Message Rule Tables100
(32 SIP Message Rules per Table)
SIP Profiles100

*A SIP Channel is a Signaling Group (SG) logical attribute used to represent a potential path for a SIP session (call) leg between the SBC and the remote peer associated with the SG. The SIP channel is not synonymous with a SIP session; the number of SIP channels may equal or exceed the number of supported maximum SIP sessions.

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  • When the threshold is reached,  the 
    Spacevars
    0series3
    will reject calls until it reaches a "safe" level (configured clear TCA threshold).
  • When the "safe" level is reached, the
    Spacevars
    0series3
     will begin accepting new calls.

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RTP Media Services Supported

 For details on supported RTP media services and licensing requirements, please refer to Calculating Virtual Machine Requirements for an SBC SWe Lite.

System Concepts and Terminology

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Info

For additional details on media modes, refer to:

Working with RTP Proxies

Configuring SBC Edge and SBC SWe Lite for various Media Modes

Creating and Modifying SIP Signaling Groups

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