The number of video streams and amount of traffic that Security Center 5.12 can deliver vary depending on the camera stream settings, the Media Gateway role settings, the dimensions of the requested video, and the performance of the server that hosts the Media Gateway and Web Client Server roles.
- Configuring Media Gateway roles
-
Configuring video streams of
cameras
The Web Client Server sends the video stream that best fit the size of the video tile in the Web Client requesting the video.
The following tests were conducted on a server with an Intel Xeon E5-2620 v4 Quad-Core Processor at 2.10 GHz with 16 GB RAM, running Windows 10 64 bit, the Web Client Server role, and the Media Gateway role.
- In our tests, the Security Center Web Client streams MJPEG at 8 fps.
- The calculation for the transcoded outbound network traffic bit rate includes an
additional 15% overhead, but also depends greatly on the content of the video (the
encoder targets 80% quality factor). For example, if the table indicates a
transcoded outbound network traffic bit rate of 65 Mbps, the calculation is as
follows:
New bit rate (325 Kbps) x 180 streams = 58500 Kbps or 57 Mbps + 15% overhead = approximately 65 Mbps
- To save system resources, you can cap the transcoded resolution. For more information, see Limiting Media Gateway connections.
Security Center cameras configured to H.264 (320 x 240) 15 fps @ 250 Kbps
Requested dimensions | Max number of streams | Outbound network traffic | Outbound network traffic per stream |
---|---|---|---|
MJPEG (320 x 240) | 180 | 65 Mbps | 0.36 Mbps1 |
H.264 (320 x 240) | 150 | 42 Mbps | 0.28 Mbps |
Security Center cameras configured to H.264 (640 x 480) 15 fps @ 500 Kbps
Requested dimensions | Max number of streams | Outbound network traffic | Outbound network traffic per stream |
---|---|---|---|
MJPEG (320 x 240) | 80 | 40 Mbps | 0.5 Mbps1 |
MJPEG (640 x 480) | 110 | 125 Mbps | 1.14 Mbps1 |
H.264 (640 x 480) | 150 | 90 Mbps | 0.6 Mbps |
Security Center cameras configured to H.264 (1280 x 720) 15 fps @ 2.5 Mbps
Requested dimensions | Max number of streams | Outbound network traffic | Outbound network traffic per stream |
---|---|---|---|
MJPEG (320 x 180) | 45 | 30 Mbps | 0.67 Mbps1 |
MJPEG (640 x 360) | 40 | 60 Mbps | 1.5 Mbps1 |
MJPEG (1280 x 720) | 55 | 190 Mbps | 3.45 Mbps1 |
H.264 (1280 x 720) | 135 | 120 Mbps | 0.89 Mbps |
Security Center cameras configured to H.264 (1920 x 1080) 15 fps @ 2.5 Mbps
Requested dimensions | Max number of streams | Outbound network traffic | Outbound network traffic per stream |
---|---|---|---|
MJPEG (320 x 180) | 23 | 12 Mbps | 0.52 Mbps1 |
MJPEG (640 x 360) | 20 | 28 Mbps | 1.4 Mbps1 |
MJPEG (1280 x 720) | 16 | 65 Mbps | 4.1 Mbps1 |
MJPEG (1920 x 1080) | 16 | 140 Mbps | 8.75 Mbps1 |
H.264 (1920 x 1080) | 60 | 260 Mbps | 4.33 Mbps |
1 The Web Client Server automatically transcodes the video stream when required, which can result in a different bit rate than the original stream.