Vivotek FD8162 Fixed Dome Network Camera User Manual - Use-IP

VIVOTEKMulticast settings for stream 1 ~ 4: Click the items to display the detailed configuration informationSelect the Always multicast option to enable multicast for stream 1 ~ 4Unicast video transmission delivers a stream through point-to-point transmission; multicast, on the otherhand, sends a stream to the multicast group address and allows multiple clients to acquire the stream atthe same time by requesting a copy from the multicast group address Therefore, enabling multicast caneffectively save Internet bandwithThe ports can be changed to values between 1025 and 65535 The multicast RTP port must be an evennumber and the multicast RTCP port number is the multicast RTP port number plus one, and thus isalways odd When the multicast RTP port changes, the multicast RTCP port will change accordinglyIf the multicast RTP video ports are incorrectly assigned, the following warning message will bedisplayed:Multicast TTL [1~255]: The multicast TTL (Time To Live) is the value that tells the router the range apacket can be forwarded62 - User's Manual