OPTICODEC-PC INTRODUCTION
1-21
•
Optional Reliable UDP, if supported by the client player, can be used for a
higher level of retransmission of lost packet control than TCP/IP.
•
Firewalls and/or routers can stop UDP/IP.
•
RTP can be interleaved with the RTSP control connection, which uses TCP/IP.
This can get through firewalls that block UDP/IP. However, form of RTP is less
efficient and adds server load, a slight network overhead, and increased bi-
trate.
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Figure 1-5: QTSS/DSS Server/Client Transports