Multicast Ip Addressing For Multiple Smp 351 Installations - Extron electronics SMP 351 User Manual

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Reply from 208.132.180.48: Destination host unreachable
of the computer is not in the same class as the device being pinged. Check that the
subnet mask on both the computer and the device are set to the same value. Also
check that both IP addresses are within the correct range for the chosen class and
are compatible. See
page 179 to select the subnet mask class that matches the IP address class.
Multicast IP Addressing for Multiple SMP 351 Installations
When multiple SMP 351 devices are installed in a system (when the multicast address
is used for push or pull streaming) the streams are managed by the SMP 351 to avoid
conflicts.
Pull streaming (RTSP)
The SMP 351 can use one of two multicast streaming IP address assignment methods.
If multicast IP addresses for a network are limited, the various SMP 351 devices can each
use unassigned port numbers within the available range (1024 to 65535).
NOTE: To prevent conflicts, always check to see if other devices using the same IP
address have already used a port number before using it in the SMP 351.
The following table shows a typical port assignment for multiple SMP 351 devices using a
single multicast IP address (RTSP pull streams require four sequential ports).
Device
SMP1
SMP2
SMP3
When there are different multicast IP addresses available, there is no need for multiple port
numbers and the port number can remain at the default (12340) as shown in the Next table.
Device
SMP1
SMP2
SMP3
To change the SMP 351 port number for multicast pull streaming, see
Configure Streaming
NOTE: The SMP 351 automatically inserts the ending port number when the initial port
number is entered.
Push streaming (TS/UDP, TS/RTP, ES/RTP)
Push streams to a multicast address generally require only two ports, except for ES/RTP
which requires four. When push streaming from multiple SMP 351 devices to multicast
addresses, the same IP address rules apply as with pull streaming.
For push streaming, the destination IP and port number are adjusted using the encoder
presets page (see
Subnet Mask on page 180 and
SMP IP Multicast IP
192.168.254.10 239.199.188.138 12340 to 12343
192.168.254.11 239.199.188.138 12344 to 12347
192.168.254.12 239.199.188.138 12348 to 12351
SMP IP Multicast IP
192.168.254.10 239.199.188.138 12340
192.168.254.11 239.199.188.139 12340
192.168.254.12 239.199.188.140 12340
on page 91.
Configure Streaming
on page 91).
— The IP address
What is an IP Address?
Multicast Port
Multicast Port
SMP 351 • Reference Information
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