Vivotek VIVOTEK FE8171V, Vandal-proof Day/Night Fisheye Network Camera, Supreme Series with 3 Megapixel, 360 Manual do Utilizador descarregar pdf (Página 70)

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70 - User's Manual

Multicast settings for stream 1 ~ 4: Click the items to display the detailed configuration information.

Select the Always multicast option to enable multicast for streams 1 ~ 4.

Unicast video transmission delivers a stream through point-to-point transmission; multicast, on the other

hand, sends a stream to the multicast group address and allows multiple clients to acquire the stream at

the same time by requesting a copy from the multicast group address. Therefore, enabling multicast can

effectively save Internet bandwith.

The ports can be changed to values between 1025 and 65535. The multicast RTP port must be an even

number and the multicast RTCP port number is the multicast RTP port number plus one, and thus is

always odd. When the multicast RTP port changes, the multicast RTCP port will change accordingly.

If the multicast RTP video ports are incorrectly assigned, the following warning message will be

displayed:

Multicast TTL [1~255]: The multicast TTL (Time To Live) is the value that tells the router the range a

packet can be forwarded.

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Vivotek VIVOTEK FE8171V, Vandal-proof Day/Night Fisheye Network Camera, Supreme Series with 3 Megapixel, 360 Manual do Utilizador Página 70