JDS Uniphase IP Video Test Option HST-3000, User Manual

Page: 325 / 356

Appendix A Test Results
LED results
HST-3000 Ethernet Testing User’s Guide
303
LED results
The LED category shows the current and historical status for
key events required when establishing a link (detecting a
signal, establishing the link) and then detecting frames.
Table 38 describes the results that appear in the LED cate-
IPv4/IPv6 Packet
Length Errors Count of IPv4 or IPv6 packets received
with a value in the length field that
exceeds the actual packet length.
ES The number of available seconds dur-
ing which one or more relevant errors
were present.
SES Seconds during which 30% or more of
the frames were lost, contained FCS
errors, or Loss of Link was detected.
The following calculation is used to
declare an SES:
(FCS Error count + Lost Frame count) /
(Frames Received count + Lost
Frames) > 0.3.
UAS Unavailable time is defined as ten (10)
consecutive severely errored seconds.
These ten seconds are included in the
UAS count.
For example, if 12 consecutive SES
occur, the UAS count will be 12. If only
3 consecutive SES occur, the UAS
count will be zero.
ESR The ratio of errored seconds to the
number of available seconds.
SESR The ratio of severely errored seconds
to the number of available seconds.
Table 37 Error Stats test results (Continued)
Result Description