Cisco 6921 Administration Manual page 145

Chapter
Table 8-5 Streaming Statistics Area Items (continued)
Item
Rcvr Lost Packets
Avg Jitter
Rcvr Codec
1
Rcvr Reports Sent
1
Rcvr Report Time Sent
Rcvr Packets
Rcvr Octets
Cumulative Conceal Ratio
Interval Conceal Ratio
Max Conceal Ratio
Conceal Secs
Severely Conceal Secs
1
Latency
Max Jitter
Sender Size
1
Sender Reports Received
Sender Report Time
1
Received
Rcvr Size
Rcvr Discarded
1
Rcvr Reports Received
Rcvr Report Time Received
Voice Quality Metrics
Cumulative Conceal Ratio
Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
OL-24567-01
Description
Total number of RTP data packets that have been lost since starting receiving data on this
connection. Defined as the number of expected packets less the number of packets actually
received, where the number of received packets includes any that are late or duplicate. The
value displays as 0 if the connection was set to send-only mode.
Estimate of mean deviation of the RTP data packet inter-arrival time, measured in
milliseconds. The value displays as 0 if the connection was set to send-only mode.
Type of audio encoding used for the received stream.
Number of times the RTCP Receiver Reports have been sent.
Internal time stamp indication when a RTCP Receiver Report was sent.
Total number of RTP data packets received by the phone since starting receiving data on
this connection. Includes packets received from different sources if this is a multicast call.
The value displays as 0 if the connection was set to send-only mode.
Total number of payload octets received in RTP data packets by the device since starting
reception on the connection. Includes packets received from different sources if this is a
multicast call. The value displays as 0 if the connection was set to send-only mode.
Total number of concealment frames divided by total number of speech frames received
from start of the voice stream.
Ratio of concealment frames to speech frames in preceding 3-second interval of active
speech. If using voice activity detection (VAD), a longer interval might be required to
accumulate 3 seconds of active speech.
Highest interval concealment ratio from start of the voice stream.
Number of seconds that have concealment events (lost frames) from the start of the voice
stream (includes severely concealed seconds).
Number of seconds that have more than 5 percent concealment events (lost frames) from
the start of the voice stream.
Estimate of the network latency, expressed in milliseconds. Represents a running average
of the round-trip delay, measured when RTCP receiver report blocks are received.
Maximum value of instantaneous jitter, in milliseconds.
RTP packet size, in milliseconds, for the transmitted stream.
Number of times RTCP Sender Reports have been received.
Last time at which an RTCP Sender Report was received.
RTP packet size, in milliseconds, for the received stream.
RTP packets received from network but discarded from jitter buffers.
Number of times RTCP Receiver Reports have been received.
1
Last time at which an RTCP Receiver Report was received.
Total number of concealment frames divided by total number of speech frames received
from start of the voice stream.
Streaming Statistics
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