Cisco Cisco Explorer Set-top Software Version 2.1 사용자 가이드
Chapter 2 Network Status Diagnostic Screens for all Explorer DHCTs
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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 > 0]—errors exist and
may cause an issue
may cause an issue
n/a—tuned to an analog channel
PER
The PERs reported by the MPEG
decoder chip
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
SER
Displays the number of SERs
reported by the MPEG decoder chip
reported by the MPEG decoder chip
0—no server errors
[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