An example of how port numbers are created is shown in the table below.
Video Port Number Example for IP Address 192.168.0.102
Item
Value
Binary
Comments
Base port number
9004
All multicast port
numbers in this
scheme start from this
value.
Deriving the Port Number Offset
Channel number (
xxx
)
0
000yyzzzzzzzzE
The channel number
for an encoder is 0.
Video stream element (
yy
)
1
xxx01zzzzzzzzE
The value for a video
stream element is 01.
Fourth octet (
zzzzzzzz
)
102
xxxyy01100110E
Takes the value of the
last octet in the device
IP address.
Last bit (
E
)
0
xxxyyzzzzzzzz0
Always 0 to make the
port number an even
value.
Port number offset value
716
00001011001100
716 is the decimal
value of the binary
number.
Creating the Final Port Number
NOTE:
There are two port numbers associated with each multicast address. The
even port number is for RTP stream data. The odd port number is for the associated
RTCP data.
Final port number (RTP, video)
9720
The sum of 9004 and
the port offset value,
716.
Second port number (RTCP,
video)
9721
Even port number plus
1.
VNM EC 200 • Advanced Controller Configuration
37
Summary of Contents for VNM EC 200
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