User's Manual

NETNode
Phase 1 and 2 Units
NETNode
User Manual
NETNode-V2.3
5-69
DS000034 Unclassified
5.2.2.7. Service Name
This text box lets you name the multicast stream as delivered in the SAP/SDP packets from
the unit. Default is MPEG Stream.
5.3. RTSP Streaming
Real Time Streaming Protocol allows automatic control of the routing through the Mesh
system. To use this feature the streaming protocol box should be set to the same RSTP
multicast or unicast modes for all nodes in the system (this will happen if the „update all
nodes‟ checkbox is ticked). The streaming protocol is selected on the Global Settings tab –
see Section 4.4.6 Streaming Protocol for details.
To access a stream on an AVI unit the URL is as follows:
rtsp://<ip_address_of_AVI_unit>/stream.sdp
This will automatically set the internal destination masks of the AVI node and the endpoint
node (the node where the data emerges from the Ethernet) to the correct values. The
destination values displayed in the destination mask on the Configuration Tab no longer have
any effect in this mode of operation.
If necessary the endpoint node will convert the multicast RTP packets to unicast (and remap
the port numbers) if the Software player does not support multicast streaming. Unicast may
also be forced by setting the mode to RTSP unicast. The Mesh always uses multicast packets
internally as this is more bandwidth efficient when reaching multiple destinations.
Note the player must be able to support transport stream packets (MP2T – suitable players
include VLC media player). Ports on different AVI NETNodes should be set to different
unique values (use even addresses for RTSP/RTP).
The source mask, internal multicast address, service name and port number are still used in
this mode.
5.4. Stream Recording and playback (v2.1)
The AVI enabled NETNode allows recoding of video streams onto a SD card (phase 2)
onwards. To use this facility first insert and 2GB SD card into the slot.
This will cause the green LED on the SD card slot to come on. The card should only be
removed when the LED is green to prevent corruption of the data on the card.
SD card slot behind
cap