ACTi I51 User Manual download pdf (Page 40)

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Firmware User’s Manual V6.08.30

Multicast Setting allows users to configure the IP addresses and ports for multicast video and

audio (supported models only) streams. Multicast is a protocol where a data stream is sent only

once and shared to requesting devices. This in turn saves network bandwidth. However, to use

this feature, network devices, such as routers and switches, should support IP multicast.

Parameters

Description

Stream 1

Refers to the video stream 1.

Stream 2

Refers to the video stream 2.

Audio

Refers to the audio stream.

NOTE: Appears only if the camera model supports audio input/output.

By Request

When checked, the video or audio stream will be streamed only to a

particular receiver when that receiver sends a request or in the case of the

Network Video Recorder (NVR), selects to view or record the stream. If

unchecked, the video or audio stream will constantly be streamed to the

network whether there are devices viewing the video or not.

To save on network bandwidth, it is recommended to check this function.

Multicast IP

Set the multicast IP of the corresponding stream.

Network Port

Enter the assigned port for the corresponding stream.

Multicast TTL

Enter the multicast TTL (time-to-live) of the corresponding stream. This

value determines the time span (in seconds) when the packet is retained

in the network. When the time expires and no request is received, the

packet is then discarded.

After changing any of the items above, press Apply to save the changes. The Reset button

undoes the changes that had just been made but not Applied yet. New port settings will only take

effect after pressing System -> Save & Reboot.

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ACTi I51 User Manual Page 40