JDS Uniphase SmartClass, User Manual

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Chapter 7 Interpreting Test Results
Traceroute results
SmartClass ADSL/Copper Tester User’s Guide 53
Traceroute results
Table 18 describes the trace route results.
OAM results
While a number of different test cells are identified to help in the administration
and maintenance of ATM networks, the ADSL/Copper Tester supports the F4
and F5 loopback function to verify ATM level connectivity. Since ATM can carry
different types of user data (such as web pages or voice), ATM layers are
defined to carry the different types of data effectively. For normal, non-time
sensitive data, such as e-mail and user files, AAL5 is used.
You can view different OAM results in two places: on the OAM test screen, and
in the group of ADSL results.
Table 19 describes the OAM results found on the OAM test screen.
TS Sync Errors Test stream sync errors
TS ErrorInd Errors Number of MPEG2 bits with the error indicator bit set
TS Continuity Errors MPEG2 Continuity Errors or lost packets, in percent
TS PCR Jitter MPEG2 Program Clock Reference jitter, in milliseconds
RTP Lost Packets Percentage of Real Time Protocol packets that were lost
RTP Oos Packets Number of RTP packets received out of sequence
RTP Errors Total RTP errors
PID mapping Provides the PID (program ID) numbers for the parts of
the stream: video, audio, PAT, and PMT.
NOTE: There could be multiple audio and video streams.
Table 17 Video results (Continued)
Result Description
Table 18 Trace route results
Result Definition
Destination Network address (IP address or URL) to which the echo
messages will be sent
State Current state of the trace
Active Whether there is a trace route currently active
Number of hops The number of points crossed from the source to the des-
tination
Table 19 OAM test results
Result Definition
The large number at the top of the screen is the number of
loopback messages processed.