# VOD  RTSP multicast

**URL:** <https://community.wowza.com/t/vod-rtsp-multicast/46638>\
**Category:** Wowza Streaming Engine\
**Created:** [February 26, 2016, 1:16pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638 "2016-02-26T13:16:26Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Robert\_Rossi](https://avatars.discourse-cdn.com/v4/letter/r/d9b06d/32.png) [@Robert\_Rossi](https://community.wowza.com/u/Robert_Rossi)\
**Post date:** [February 26, 2016, 1:16pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/1 "2016-02-26T13:16:26Z")

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HI

I have Wowza streaming engine 4.3 with the VOD configured for video files that are located on my hard drive

I have a player that accepts an RTSP stream. Is it possible for Wowza to stream RTSP in multicast using the VOD configuration?

If yes how can I configure it

Thanks

Robert

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**Author:** ![Zoran](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/zoran/32/385_2.png) [@Zoran](https://community.wowza.com/u/Zoran)\
**Post date:** [March 2, 2016, 3:12pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/2 "2016-03-02T15:12:23Z")

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Hi,

It is not possible to have the Wowza Streaming Engine push a multicast stream for a video on demand content. It is possible to have a Live stream being pushed by Wowza to a multicast IP/port address.

It is possible to have a VOD file scheduled to be played back as a live stream at a specific time (using the [ServerListenerStreamPublisher](https://www.wowza.com/docs/how-to-schedule-streaming-with-wowza-streaming-engine-streampublisher%28ServerListenerStreamPublisher%29)) and then push the generated live stream to the multicast address.

Zoran

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**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [March 3, 2016, 10:05am UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/3 "2016-03-03T10:05:54Z")

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Hello,

Using the method that Zoran described, Wowza Streaming Engine would use a[Stream Target/Push Publishing](https://www.wowza.com/docs/how-to-use-mpeg-ts-to-distribute-live-streams) to push this live stream containing a scheduled playlist of VOD content to a local multicast IP address in your network. Players would then connect directly to the local multicast IP address source within your network and pull the stream.

Best regards,

Andrew

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**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [March 8, 2016, 10:22am UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/4 "2016-03-08T10:22:22Z")

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Hello,

The most likely limitation in a unicast scenario would be the PC performance. You can reference the [server specifications](https://www.wowza.com/products/streaming-engine/specifications) page for recommended minimum and high load scenarios.

You could also use one of the cloud computing providers to demo the software with your source VOD files. This would be a low cost way to get performance information. You would want to select a licensed [Pro Edition (HVM)](https://aws.amazon.com/marketplace/pp/B012BW3WB8/ref=_pntr_web_doc) instance as the BYOB + Trial License key is limited to 10 simultaneous connections.

Best regards,

Andrew

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<div class="post-metadata">

**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [March 24, 2016, 2:40pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/5 "2016-03-24T14:40:32Z")

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Hello,

This dual NIC setup should be possible utilizing the [Stream Targets/Push Publishing](https://www.wowza.com/docs/how-to-use-mpeg-ts-to-distribute-live-streams) feature, along with the server’s routing table. In this you would set a destination multicast IP address in the Stream Target entry, then to determine which interface should be used, routes would need to be added to the server’s routing table pointing to a specific interface.

You may find that any bottleneck with the server is likely to be CPU related, rather than a network bandwidth issue but this could vary depending on the workflow.

Best regards,

Andrew

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**Author:** ![Robert\_Rossi](https://avatars.discourse-cdn.com/v4/letter/r/d9b06d/32.png) [@Robert\_Rossi](https://community.wowza.com/u/Robert_Rossi)\
**Post date:** [March 2, 2016, 1:04pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/6 "2016-03-02T13:04:50Z")

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Thanks. Does the Wowza multicast support a push method? Is it possible to support the mulitcast stream using a pull method. Where the decoder request whether the streaming is unicast or multicast?

Thanks

Robert

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<div class="post-metadata">

**Author:** ![Robert\_Rossi](https://avatars.discourse-cdn.com/v4/letter/r/d9b06d/32.png) [@Robert\_Rossi](https://community.wowza.com/u/Robert_Rossi)\
**Post date:** [March 3, 2016, 1:09pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/7 "2016-03-03T13:09:24Z")

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Hi

Thanks for the reply. When using the VOD without using the ServerListenerStreamPublisher how many unicast streams can the Wowza server handle? Is there a limit or is it based on the PC performance.

If it is based on the PC, what specifications would you recommend for streaming 10 VOD files at 1080p60?

Thanks

Robert

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<div class="post-metadata">

**Author:** ![Robert\_Rossi](https://avatars.discourse-cdn.com/v4/letter/r/d9b06d/32.png) [@Robert\_Rossi](https://community.wowza.com/u/Robert_Rossi)\
**Post date:** [March 14, 2016, 4:08pm UTC](https://community.wowza.com/t/vod-rtsp-multicast/46638/8 "2016-03-14T16:08:42Z")

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Hi

Thanks for the reply

To improve performance, is it possible to use a second network card in the system and select which VOD streams are sent to which network card/port.

If yes, is there instruction on how to configure this?

I plan on streaming around 60 MP4 files (H.264 based) @ approximately 9-10Mbps per stream (Using the VOD option)

Thanks

Robert
