Bosch NWC-0455-20P Operating Instructions Manual page 88

88 en | Configuration via the browser
to receive the video signal from an encoder simultaneously. This
is either done by duplicating the data stream in the unit and
then distributing it to multiple receivers (multi-unicast) or by
distributing an individual data stream in the network itself to
multiple receivers in a defined group (multicast). You can enter
a dedicated multicast address and port for each stream. You
can switch between the streams by clicking the associated
tabs.
NOTE! The prerequisite for multicast operation is a multicast-
i
capable network that uses the UDP and IGMP protocols. Other
group membership protocols are not supported. The TCP
protocol does not support multicast connections.
A special IP address (class D address) must be configured for
multicast operation in a multicast-enabled network. The net-
work must support group IP addresses and the Internet Group
Management Protocol (IGMP V2). The address range is from
225.0.0.0 to 239.255.255.255. The multicast address can be the
same for multiple streams. However, it is then necessary to use
a different port in each case so that multiple data streams are
not sent simultaneously using the same port and multicast
address.
Multicast address video 1
Enter a valid multicast address for each stream to be operated
in multicast mode (duplication of the data streams in the net-
work). With the setting 0.0.0.0 the encoder for the relevant
stream operates in multi-unicast mode (copying of data streams
in unit). The camera supports multi-unicast connections for up
to five simultaneously connected receivers.
NOTE!
i
Duplication of data places a heavy demand on the CPU and can
lead to impairment of the image quality under certain
circumstances.
V 2.5 | 2007.6 Operating Instructions
Dinion IP
Bosch Security Systems