Cisco DNCS System Release 2.8 3.8 4.3 디자인 가이드
Status and Network Parameters Diagnostic Screen
78-4001708-01 Rev B
27
Field
Name
Description
Possible Values
PCR
Lock
Lock
The time stamp of the last PCR
synchronization lock
synchronization lock
[Integer > 0]—number should
change each time the screen
refreshes; otherwise video may be
lost
change each time the screen
refreshes; otherwise video may be
lost
n/a—tuned to an analog channel
A/V Disc The sum of the discontinuity errors
encountered on either the audio or
video streams (A/V Disc) that have
occurred since the current stream
was tuned
video streams (A/V Disc) 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,
which indicates data loss.
that packets were transmitted out of
order or with a gap between them,
which indicates data loss.
0—no discontinuity errors
[Integer > 0]—could indicate a
problem
Note: If A/V Disc is high, an issue
such as macroblocking may be
present.
problem
Note: If A/V Disc is high, an issue
such as macroblocking may be
present.
n/a—tuned to an analog channel
PTS
A presentation time stamp (PTS) that
changes each time the screen
refreshes
changes each time the screen
refreshes
UNIX format—number should
change each time the screen
refreshes; otherwise video may be
lost
Important! If this number does not
change each time the screen
refreshes, then video may have
been lost.
change each time the screen
refreshes; otherwise video may be
lost
Important! If this number does not
change each time the screen
refreshes, then video may have
been lost.
n/a—tuned to an analog channel
PEI
The number of errors (packet error
indication [PEI]) in the MPEG stream
before reaching the broadband
interface processor (BIP)
indication [PEI]) in the MPEG stream
before reaching the broadband
interface processor (BIP)
0—no errors in MPEG stream
[Integer greater than 0]—errors
exist and may cause an issue
exist and may cause an issue
n/a—tuned to an analog channel
PER
The pipeline errors (PERs) reported
by the MPEG decoder chip
by the MPEG decoder chip
0—no errors in pipeline stream
[Integer > 0]—errors exist and
may cause an issue
Note: Some errors may be normal
depending on the MPEG stream
being decoded.
may cause an issue
Note: Some errors may be normal
depending on the MPEG stream
being decoded.
n/a—tuned to an analog channel