6.6 RDP
The Return Data Path feature enables forwarding of a stream from any probe interface
to another destination IP-address. An Ethernet stream may also be recorded to file.
Although Bridge Technologies probes allow detailed analysis and inspection of signals,
there will always be situations when other tools are required. Rather than carrying
heavy and expensive equipment from site to site for remote investigation, it is much
easier to forward the stream back to where the equipment is located.
Situations when RDP is particularly useful include testing of scrambled signals.
Descrambling of a stream can be easily verified by forwarding the stream to a
centrally located decoder or set-top box. Another example is when local insertion and
PSI/SI multiplexing introduces lots of unknowns in remote locations. Bringing the signal
back for analysis could be very useful.
RDP Relay
A stream can be RDP forwarded to a specified IP-address as a unicast stream or as a
multicast stream. The interface across which to forward the traffic needs to be
specified in both cases.
The relaying functionality is enabled by clicking the grey
Relay
button. Relaying is
stopped by clicking the green
Relay active
button. If a relay timeout period different
from 0 is selected, relaying will be stopped when the relay timeout period has expired.
Note that when relaying signals originating from optional input modules, it is
necessary to lock the tuning to one frequency for proper operation. This is done under
the ETR290 view.
RDP Record
PROBE USERS' MANUAL VERSION 5.0
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