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1588 PTP Test Setup and Results
188
FTB-860/880
1588 PTP
PTP Alarm Timeout/Threshold
Note:
The following parameters are also used to declared the Pass/Fail verdict
(see
Receipt Timeout
defines the threshold used to declare a
Loss
Announce
or
Loss Sync
message alarm:
2
to
255
messages (default is
3
messages). A message is considered lost if not received within its
expected arrival time and a loss alarm is declared when the number of
consecutive lost messages is greater than or equal to the defined
Receipt Timeout
.
IPDV Threshold
defines the inter packet delay variation threshold
used to raise the
Unusable
message alarm. The alarm is raised when
IPDV is not within the configured
IPDV Threshold
:
0.001
to
1000ms
(default is
2ms
). The minimum value of 0.001 is adjusted when the
Sync
or
Delay Req
is set to 4 messages/s or less.
Quality Level
The quality level characterizes the clock quality in terms of network
synchronization.
QL Mismatch Monitoring
when selected (default) enables the Quality
Level mismatch monitoring.
Expected QL
allows, when
QL Mismatch Monitoring
check box is
selected, the selection of the Expected Quality Level value:
QL-PRS
by
default. Refer to page 197 for more information.
Содержание FTB-860
Страница 1: ...User Guide FTB 860 880 NetBlazer Series for FTB 1 Ethernet Packet Sync FC Wireless Test Applications...
Страница 7: ...NetBlazer vii B Glossary 371 Acronym List 371 VLAN 379 1588 PTP 380 SyncE 385...
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Страница 382: ...Specifications 370 FTB 860 880 Straight Through Cable 1000 Mbit s Crossover Cable 1000 Mbit s...
Страница 390: ...Glossary 378 FTB 860 880 Acronym List W WAN Wide Area Network WIS WAN Interface Sublayer WWN World Wide Name...