Axis Network video Manual page 81

Transport
Protocol protocol
FTP
(File Transfer
Protocol)
SMTP
(Send Mail
Transfer
Protocol
HTTP
(Hyper Text
Transfer
Protocol
HTTPS
(Hypertext
Transfer
Protocol over
Secure
Socket Layer)
RTP
(Real Time UDP/TCP
Protocol)
RTSP
(Real Time
Streaming
Protocol)
Table 9.2a Common TCP/IP protocols and ports used for network video.
Port
Transfer of files
TCP 21 over the Internet/
intranets
Protocol for
TCP 25 sending e-mail
messages
Used to browse
the web, i.e. to
TCP 80 retrieve web
pages from web
servers
Used to access
web pages
TCP 443 securely using
encryption
technology
RTP standardized
packet format for
delivering audio
and video over
Not
the Internet—
defined
often used in
streaming media
systems or video
conferencing
TCP 554
NETWORk TECHNOLOGIES - CHAPTER 9
Common usage
Transfer of images or video from a
network camera/video encoder to an
FTP server or to an application
A network camera/video encoder can
send images or alarm notifications
using its built-in e-mail client.
The most common way to transfer
video from a network camera/video
encoder where the network video
device essentially works as a web
server making the video available for
the requesting user or application
server.
Secure transmission of video from
network cameras/video encoders.
A common way of transmitting
H.264/MPEG-based network video,
and for synchronizing video and audio
since RTP provides sequential
numbering and timestamping of data
packets, which enable the data
packets to be reassembled in the
correct sequence. Transmission can
be either unicast or multicast.
Used to set up and control multimedia sessions over RTP
Network video usage
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