Руководство По Проектированию для Cisco DNCS System Release 2.7 3.7 4.2
Chapter 2 System-Related Diagnostic Screens
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78-4001708-01 Rev B
Field Name
Description
Possible Values
Uncor Blks
The number of data blocks
received in error that were not
successfully corrected by FEC
code
received in error that were not
successfully corrected by FEC
code
[Integer > 0]
Errs Avg/Inst
9
Two unique numbers that
describe data errors
First Number—the average
number of errors during the time
the frequency was locked
number of errors during the time
the frequency was locked
Second Number—the number
of errors since the last time the
screen was refreshed
of errors since the last time the
screen was refreshed
[Integer > 0]/[Integer > 0]
Second MPEG Decoder
The second MPEG Decoder section includes information about the DHCT when it is
The second MPEG Decoder section includes information about the DHCT when it is
tuned to a digital channel and when an MPEG stream is being detected. For more
information, go to MPEG Stats in the Status and Network Parameters Diagnostic
Screen (on page 22) section.
Field Name
Description
Possible Values
A/V Disc
The sum of the discontinuity
errors encountered on either the
audio or video streams that have
occurred since the current
stream was tuned
Note: Discontinuity errors
indicate that packets were
transmitted out of order or with a
gap between them. This
indicates data loss.
errors encountered on either the
audio or video streams that have
occurred since the current
stream was tuned
Note: Discontinuity errors
indicate that packets were
transmitted out of order or with a
gap between them. This
indicates data loss.
0—desired value
[Integer > 0]—indicates an issue
PCR Lock
The time stamp of the last PCR
synchronization lock
synchronization lock
[UNIX format]—number should
change each time the screen
refreshes; otherwise video may be
lost.
change each time the screen
refreshes; otherwise video may be
lost.
Video
The video PID number in the
MPEG stream that contains the
video information being decoded
MPEG stream that contains the
video information being decoded
[Hexadecimal value > 0]—
streaming
streaming
[Hexadecimal value =0]—not
streaming
streaming
Audio
The audio PID number in the
MPEG stream that contains the
audio information being decoded
MPEG stream that contains the
audio information being decoded
[Hexadecimal value > 0]—
streaming
streaming
[Hexadecimal value =0]—not
streaming
streaming
9
This field applies to QAM Data Channels only. It does not apply to analog channels.