Maintenance Manual

Encryption Whether or not encryption is being used
on the video receive stream from this
endpoint.
This field will only appear if the encryption key
is present on the MCU.
Channel bit rate The negotiated bit rate available for the
endpoint to send video in.
This value represents the maximum amount of
video traffic that the remote endpoint will send
to the MCU. It may send less data than this (if it
does not need to use the full channel bit rate or
the MCU has requested a lower rate), but it
should not send more.
Receive bit rate The bit rate (in bits per second) that the
MCU has requested that the remote
endpoint sends. The most-recently
measured actual bit rate displays in
parentheses.
This value might be less than the Channel bit
rate if:
■ the MCU detects that the network path
to the remote endpoint has insufficient
capacity to maintain a higher traffic rate
■ that endpoint's video stream's position
in the active conference compositions
does not require it
■ it has been necessary to reduce the
video bit rate because of the overall call
bit rate; the audio bit rate plus the video
bit rate should not exceed the call bit
rate
For example, if all participants in the
conference were watching a single participant
at full screen, no other participants' video
streams would be needed at all. So the MCU
would request that those streams were sent at
a low bit rate in order to avoid needless use of
network bandwidth.
If the receive bit rate has been limited to below
the maximum channel bit rate, the reason for
this limitation can be seen by moving over the
icon.
Received jitter Represents the variation in video packet
at arrival time at the MCU.
Delay applied for
lipsync
The number of milliseconds by which the
video follows the audio. Some endpoints
send audio and video out-of-sync. The
MCU ensures audio and video are played
together.
Packets received The number of video packets destined
for the MCU from this endpoint
Packet errors Video packet-level errors such as
sequence discontinuities, incorrect RTP
details, and so on. This is not the same
as packets where the content (the
actual video data) is somehow in error.
This value does not represent packets in which
the actual video data in the packets is in error.
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