The Virtual receiver Buffer (VRX) is based on the leaky bucket algorithm and will be
drained according to the Packer Read Schedule. In the Timing View, the Virtual
receiver Buffer only measures the number of packets present during the steady state
window, the reason being that the VRX buffers up at the beginning of a frame and
drains it down to zero at the end of the frame before the gap. The capacity of the
VRX is a preset value specified in the standard and scales according to sender type.
The sender needs to ensure that the packets enter the buffer and are ready to be
drained at Start Of Packet Read, for the VRX to neither overflow or underflow.
C, is like the Virtual Receiver Buffer based on the leaky bucket algorithm, which task
is to distribute packets evenly to avoid buffers to overflow. The graph in the timing
view shows average and maximum packets in real time. The maximum value is
pre-defined based on the type of transmitter. C overflow shows the number of
packets exceeding the maximum allowed value.
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VB440 Studio Probe User’s Manual v6.0
© Bridge Technologies Co AS
