NewTek TriCaster Mini User Manual page 328

o Pull doesn't waste bandwidth; no signal is being sent out to the server
unless somebody wants to view it.
o If you lose your connection to the (provider side) server, the server
will re-connect to your encoder automatically when Internet
connection resumes.
o Providers typically have significant bandwidth, and are able to meet
necessary requirements to deliver stutter-free, high quality streams
to large numbers of viewers.
 Disadvantages:
o Like the "Pull by End Users" method above, this requires a public IP
address, preferably a "static IP address" (which does not change
dynamically if you need to reconnect) as well as open ports for the
connection to be established. These requirements are becoming
increasingly difficult to meet (given common security measures).
Windows Server2003® introduced "Push" technology. With this method, the encoder
sends the stream to downstream servers. This allows the encoder to establish a
connection to the server on a specified port. Once this connection is established,
additional network ports may be opened as required (since the Encoder established
the connection, not the server.)
 Advantages:
o Easy to connect to the provider. There are no requirements for open
ports on your local system, or public IP's. In addition, firewalls do not
get in the way.
 Disadvantages:
o Live streams that have no viewers are still consuming bandwidth.
From a provider point of view, it is possible that all of our bandwidth
Page | 312
P T P
USH O ROVIDER