Extron-electronics SME 100 User Guide Manual do Utilizador Página 175

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Multicast IP Addressing for Multiple SME100 Installations
When multiple SME100 devices are installed in a system (when the multicast address
is used for push or pull streaming) the streams are managed by the SME100 to avoid
conflicts.
Pull streaming (RTSP)
The SME100 can use one of two multicast streaming IP address assignment methods.
If multicast IP addresses for a network are limited, the various SME100 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 SME100.
The following table shows a typical port assignment for multiple SME100 devices using a
single multicast IP address (RTSP pull streams require four sequential ports).
SME Device SMEIP Multicast IP Multicast Port
SME1
192.168.254.10 239.199.188.138 6000 to 6003
SME2
192.168.254.11 239.199.188.138 6004 to 6007
SME3
192.168.254.12 239.199.188.138 6008 to 6011
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 (6000) as shown in the next table.
SME Device SMEIP Multicast IP Multicast Port
SME1
192.168.254.10 239.199.188.138 6000
SME2
192.168.254.11 239.199.188.139 6000
SME3
192.168.254.12 239.199.188.140 6000
To change the SME100 port number for multicast pull streaming, see the
"Port Settings Page" on page 103.
NOTE: The SME100 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 SME100 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
settings page (see Encoder Settings Page on page 88).
SME100 • Reference Information 169
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