ZEC Viewing Stream Statistics

You can view all the accumulative statistics for a connected input stream in real-time. It is possible to reset the counters by clicking Reset. The statistics may differ between the various stream types. 

To View Stream Statistics:

  • On the Inputs page of ZEC, click the desired input stream for which you want to view statistics for. The stream’s statistics are displayed on the bottom of the screen.

FieldDescription

Bitrate (kbps)

Displays the current bitrate of the input stream.

Last ConnectedDisplays the date and time in which the stream was connected. 

Up Time

Displays the amount of time the stream has been active.

Reconnections

Displays the number of reconnection attempts.

RTT (ms)Displays the Round Trip Time (RTT) from the source (in milliseconds).
Jitter (ms)Displays the current Jitter, measured in milliseconds.
Congestion [%]Displays an estimation of the communication's congestion level – '0' means congestion free, '100' means fully congested.
Latency (ms)Displays the stream latency configured on the source.
Total PacketsDisplays the total number of packets that have been transmitted.

Packet Rate

Displays the current number of packets per second
Packet Loss %Displays current percentage of the packets that were dropped on route from the source.
Remuxing Resets

Remuxing resets can occur when remuxing to CBR (i.e value of ‘Remux to bitrate’ field is set). In this case, the value is not high enough to remux the video+audio+other PIDs data. A possible solution is to increase value of the ‘Remux to bitrate’ parameter.

Remuxing OverflowsThis indicates that the multiplexer internal queues are full.
Smoothing Drops

The Smoothing feature uses a buffer to time packets according to the stream's clock. This is useful when there are bursts in the rate in which the stream arrives. The smoothing drops indicator indicates that the stream is too "bursty".

Consecutive Drops

The number of packets that were dropped in a row. When consecutive packets are dropped that could imply burst loss, as opposed to a sustained % of loss that would imply congestion.

Drop Correlations


Dropped Packets

Displays the total number of packets dropped between the source and the Broadcaster since the beginning of the stream.

Recovered PacketsDisplays the number of dropped packets that have been recovered since the beginning of the stream.
Not Recovered PacketsDisplays the number of non-recovered packets.
FEC PacketsDisplays the number of FEC packets transmitted.
FEC RecoveredDisplays the number of FEC packets recovered.
ARQ RequestsDisplays the number of requests for retransmission of dropped packets made with ARQ.
ARQ RecoveredDisplays the number of dropped packets recovered via ARQ.
ARQ Out of CreditDisplays the number of retransmission requests skipped because it hits a limit, which protects from floods of retransmissions when many packets are missing.
OverflowsThe number of packets lost due to buffer overflow.
Note: Overflow is usually the result of the Max Bitrate being too low.
Consecutive Not RecoveredDisplays the maximal number of consecutive "not recovered packets" in the last measurement period (1 second). This measurement can help identify long streaks of unrecovered packets, which it is not possible to see by just looking at the global "not recovered" counter.

ARQ Duplicates

Displays the number of duplicate recovery packets received via ARQ.