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Push Streaming (Unicast Port Numbers)
In systems with more than one SME 100 encoder using any of the unicast push methods
(TS/UDP, TS/RTP, ES/RTP) to a single SMD 101 decoder, each SME 100 must use a unique
port number (such as 60000 and 61000)
Multicast
For systems where streams from one or more SME 100s are received and decoded by
multiple SMD 101s, multicast addressing is strongly recommended. All network switches
must be suitably rated and correctly configured for IGMP snooping and multicast filtering
with an active IGMP querier (possibly the network switch) available on the local subnet for
optimum performance.
Source Specific Multicast (SSM) IGMP v3
This protocol is an enhancement to conventional Internet Standard Multicast (ISM) which
normally requires a client (decoder) to specify the multicast group address and port number.
Using SSM, the client (decoder) also specifies the IP address of the server (or encoder) from
which it wants to receive the multicast traffic. The additional address information is used by
IGMP v3 capable switches and routers to optimize delivery of the multicast stream from the
server (encoder) to the client (decoder).
NOTE: SSM multicast groups are typically assigned in the range 232.0.0.0 to
SSM streams can be accessed in the conventional way using SAP or RTSP protocols.
In this case the information necessary for the connection is supplied via SDP. SSM
streams can also be accessed by entering the appropriate 'include_source' query to the
conventional UDP or RTP URL.
For example, for multicast group address 232.199.188.177 and port address 10000:
To access a TS/UDP multicast PUSH stream from source IP 192.168.100.201.
udp://232.199.188.177:10000?include_sources=192.168.100.201
Connecting to Streams Without SAP Announcements
For a source that is not configured for SAP announcements (such as IP cameras), the RTSP
(pull) stream URI is entered directly in the Source field of the SMD 101 player controls. The
URI prefix (udp in the example below) corresponds to the streaming method.
UDP or RTP Connections
To connect the SMD 101 to a stream using the destination port of the encoder, use the
following template:
udp://@:<destination port>
For example, to connect to a SME 100 stream, enter the following URI in the SMD 101
Source field (see
udp://@:60000
The SMD 101 also supports the URI formats:
rtp://192.168.254.254@192.168.254.254:60000
and
rtp://@192.168.254.254:60000
232.255.255.255 or within an administrator defined range such as 239.232.x.x.
Contact your system administrator for further details of the multicast addressing
scheme in use on your network.
Source field
on page 27):
SMD 101 • Advanced Player Configuration
.
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