User guide

22 Chapter 2
Overview
Version 3.1
NOTE Since multicast is one of the packet types in Internet Protocol Version 6
(IPv6), it will work on a LAN if multicast forwarding is enabled on the
routers between the network segments (unless your router does not
support multicast mode). However, this will not usually work across the
Internet since most of the routers are not configured to support multicast,
and you cannot be sure which routers will be used by your streams.
Clients that are located behind routers, that do not implement
multicasting can still receive a multicast by requesting the stream from a
reflector.
A reflector is a server that joins a multicast and converts it into several
unicasts, one for each requesting client (see “Using 4Sight as a reflector”
on page 40 for more information).
Figure 2. Multicast
NOTE To multicast content, broadcast it to any address between the following
values: 224.0.0.0 - 239.255.255.255
The main advantage of multicast mode is that less bandwidth is used
compared to unicast mode.
4Sight
EnvivioTV™
4View
Multicast
address
EnvivioTV™
4View
EnvivioTV™
4View