11-26
Surveyor
User’s Guide
Table 11-11. H.323, SIP, or UNKNOWN Channel Table Column Descriptions
Table Column
Description
Channel
Channel type, Audio, Video, or Data.
Min User R Factor
The lowest User R-factor calculated during a sampling interval for a
call.
User R Factor
Voice quality measure expressed as a numeric value between 0 and
94. The value is calculated by Surveyor. Surveyor uses a formula that
includes packet loss, jitter, transmission delay, and recency to deter-
mine the User R-factor.
Max User R Factor
The highest User R-factor calculated during a sampling interval for a
call.
Min Network R Factor
The lowest Network R-factor calculated during a sampling interval for a
call.
Network R Factor
Voice quality measure expressed as a numeric value between 0 and
94. The value is calculated by Surveyor. Surveyor uses a formula that
includes packet loss, jitter, and transmission delay to determine the
Network R-factor.
Max Network R Factor
The highest Network R-factor calculated during a sampling interval for
a call.
Estimated MOS
A conversion of the combined R-factors to a Mean Opinion Score. The
MOS maps to a purely subjective evaluation of call quality where users
rate speech samples on a scale of 1 to 5.
Dst Addr
The destination IP address.
Dst Port
The destination UDP port.
Src Addr
The source IP address.
Src Port
The source UDP port.
Sync Source
Synchronization source. Internal number identifying the source.
Packet Count
Packet Count. The value is calculated by Surveyor.
Byte Count
Byte Count. The value is calculated by Surveyor.
Dropped Packets
Packets Dropped. The value is calculated by Surveyor.
Codec
Codec/Decoder type. (DataType in H.245)
Jitter (ms)
Jitter in milliseconds. The value is calculated by Surveyor. Surveyor
uses the formula described in RFC 1889 to calculate jitter.
Min Jitter (ms)
Minimum Jitter in milliseconds. The value is calculated by Surveyor.
Surveyor uses the formula described in RFC 1889 to calculate jitter.
Summary of Contents for Surveyor
Page 1: ...Surveyor User s Guide ...
Page 30: ...1 10 Surveyor User s Guide ...
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Page 204: ...9 20 Surveyor User s Guide ...
Page 207: ...10 3 Expert Features Getting Started with Expert View10 Figure 10 1 Expert Overview Example ...
Page 211: ...10 7 Expert Features Expert Layers 10 Figure 10 3 Expert Application Layer Example ...
Page 368: ...11 34 Surveyor User s Guide ...
Page 390: ...13 12 Surveyor User s Guide ...
Page 416: ...C 4 Surveyor User s Guide ...
Page 426: ...D 10 Surveyor User s Guide ...
Page 454: ...Index 14 Surveyor User s Guide ...