Data And Control Routing - Extron electronics VN-Matrix 325 User Manual

Unicast TCP
The unicast TCP data transport method uses standard TCP protocol and should be used for
single point-to-point transfer of data only. This method is connected as shown in
NOTES:
IP Encoder
LAN-1
LAN-2 TEST
STATUS
ALARM
Figure 5.
TCP is a connection-based protocol. Data is guaranteed to be delivered, however excessive
network traffic, which impacts real-time performance, may delay delivery.

Data and Control Routing

The system can be used over both switched (single segment) and routed (multi-segment)
networks
The VN-Matrix 325 system can be configured to run using either a single LAN port (1 or 2)
or both LAN ports. In the single port configuration, all data (image, audio, control, and
monitoring) is transported on the designated port. In the dual port configuration, image and
audio data is transported on one connection while the other LAN port is used for monitoring
and or management functions.
All system control is managed by the VNC 325 that has been designated as the controller.
Any changes made in the network browser are sent to the affected codec from the
controller via the network that has been assigned for streaming. The browser is accessible
via either network port on the unit that is configured as the controller.
Video and audio data can be transported over either of the LAN ports on the VNC 325 and
are independent of the system control data.
• Multiple decoder connections are theoretically possible using this method
but not recommended. Each additional connection creates extra loading on
the encoder CPU, which ultimately results in poor display performance. In
addition, multiple TCP streams carrying the same source data is an inefficient
use of network bandwidth.
•
While figure 5 shows two decoders, in the scenario shown only IP decoder 1
is set to actively decode data that is streamed to it. IP decoder 2 may be
in standby (set as
Device Type: None
Decoders") or may be receiving streamed data from another encoder.
•
In figure 5, IP decoder 2 is designated as the system controller.
VN-MATRIX 325 SERIES
SERIAL DIGITAL VIDEO OVER IP
TCP/IP
Program Data
Netw Network
Monitoring and
Control
Typical Unicast TCP Application
VN-Matrix 325 Serial Digital Over IP CODEC • Installation and Setup
, see "Configure Encoders or
Each encoder is 'paired' to a decoder
with a point-to-point data link.
IP Decoder 1
LAN-1
LAN-2 TEST
STATUS
ALARM
TCP/IP
Program Data
ork k k k k k k k k k k rk rk rk rk rk
System Control System Control
IP Decoder 2
LAN-1
LAN-2 TEST
STATUS
ALARM
Decoder Configured as Controller
figure 5.
VN-MATRIX 325 SERIES
SERIAL DIGITAL VIDEO OVER IP
VN-MATRIX 325 SERIES
SERIAL DIGITAL VIDEO OVER IP
10