Polycom RealPresence 1500 Administrator's Manual page 1024

Appendix E - Participant Properties
Advanced Channel Information
The following appendix details the properties connected with information about audio and video parameters,
as well as, problems with the network which can affect the audio and video quality.
Participant Properties - Channel Status Advanced Parameters
Field
Media Info
Algorithm
Frame per packet
(audio only)
Resolution
(video only)
Frame Rate
(video only)
Annexes (video only)
Channel Index
RTP Statistics
Actual loss
Polycom®, Inc.
Description
Indicates the audio or video algorithm and protocol.
The number of audio frames per packet that are transferred
between the MCU and the endpoint. If the actual Frame per
Packets are higher than Frame per Packets declared during the
capabilities exchange, a Faulty flag is displayed.
Indicates the video resolution in use. If the actual resolution is
higher than resolution declared in the capabilities exchange, the
Faulty flag is displayed. For example, if the declared resolution is
CIF and the actual resolution is 4CIF, the Faulty flag is displayed.
The number of video frames per second that are transferred
between the MCU and the endpoint.
Indicates the H.263 annexes in use at the time of the last RTCP
report. If the actual annexes used are other than the declared
annexes in the capabilities exchange, the Faulty flag is displayed.
For Polycom Internal use only.
The number of missing packets counted by the IP card as reported
in the last RTP Statistics report. If a packet that was considered lost
arrives later, it is deducted from the packet loss count. Packet loss
is displayed with the following details:
• Accumulated N - number of lost packets accumulated since the
channel opened.
• Accumulated % - percentage of lost packets out of the total number
of packets transmitted since the channel opened.
• Interval N - number of packets lost in the last RTP report interval
(default interval is 5 minutes).
• Interval % - percentage of lost packets out of the total number of
packets transmitted in the last RTP report interval (default interval is 5
minutes).
• Peak - the highest number of lost packets in a report interval from the
beginning of the channel's life span.
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