SMP 111 • Reference Information
98
Unicast Pull Stream Method
Unicast Pull streams max at 20 streams:
Unicast
Resolution
(Pixels x Lines @ frame rate)
Video Bit Rate
(Kbps)
Approximate Number of
Pull Streams
848 x 480 @ 15
1500
20
1024 x 768 @ 15
2500
20
1280 x 1024 @ 30
3500
20
1280 x 720 @ 30
5000
18
1920 x 1080 @ 30
8000
14
NOTE:
The following configuration options were set on the SMP:
•
Stream Type = VBR
•
GOP Length = 30
•
Streaming Pull Streaming Method = Unicast RTP
Unicast Push Stream Method
The SMP 111 supports one push unicast stream.
Available Multicast Streams
The SMP 111 uses the IGMP multicast protocol to push or pull streams. The IGMP multicast
protocol provides increased bandwidth efficiency because the SMP 111 only sends data
when a connection is made by the user. All network switches and routing equipment must
be properly configured to support IGMP snooping and IGMP query to avoid flooding all
endpoints with unnecessary streaming traffic.
The table below indicates the approximate number of multicast streams supported by the
SMP 111 using the IGMP multicast protocol. Operating at different resolutions using higher
or lower bit rates can increase or decrease the scalability of the streaming system.
NOTE:
For networks not configured to use the IGMP multicast protocol, consider using
a media server to deliver multiple unicast streams to control PCs and viewing devices.
Multicast Pull Stream Method
Multicast
Resolution
(Pixels x Lines @ frame rate)
Recommended
Video Bit Rate
(Kbps)
Approximate Number of
Pull Streams
1920 x 1080 @ 30
8000
>180
NOTES:
The number of available pull streams is dependent on bandwidth and content
(high motion or static content).
The following configuration options were set on the SMP:
•
Stream Type = VBR
•
GOP Length = 30
•
Streaming Pull Streaming Method = Unicast RTP at default settings
If more streams are required, setting up a media server is the next step in expanding the
streaming architecture. A media server provides a scalable live streaming media solution.
Multicast Push Stream Method
The number of multicast push streams is not limited.
Содержание SMP 111
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