NewTek Tricaster TCXD850, User Manual, Page: 241 / 336

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Also consider the expected download abilities of your viewers. Ideally, a safety margin 1.5 times
the stream’s bitrate is desirable. This may mean you need to consider using a lower resolution,
or lower framerate for your stream – but doing so when required will generally deliver a smooth
result, and is the wise course. (Nothing inclines viewers to turn away quicker than a stuttering,
start and stop stream. See “Speed Tests” in Section 15.4.1 for some useful resources.)
15.2.2 STREAMING PROTOCOLS
Additionally, there are two primary streaming methods, known as Pull and Push . Choosing the
best method for your needs is important. Let’s review each, and consider what is best for your
needs.
PULL BY END USERS
Simply put, the Windows Media Encoder in TriCaster allows your (networked) audience to
connect directly to it, and it distributes the stream to them.
Connecting in this manner requires you to have a connection with sufficient bandwidth to deliver
a stream to each individual user. For this reason, the simple Pull streaming method rarely works
well for more than 1 or 2 viewers.

Advantages:
o
When TriCaster is not behind a firewall or does not have a public IP address,
this is a very simple way to let a few viewers watch your program stream.

Disadvantages:
o
Requires either a public IP address or requires users to be on the same
network. Facilities such as hotels or convention centers will usually not provide
a public IP address. Even if they do, getting them to open holes in their firewall
is next to impossible.
o
If TriCaster is behind a router, your router must be configured to ‘port forward’.