Edge-Core ECS4660-28F, Руководство по управлению, Страница: 604 / 2020

C
HAPTER
14
| Basic Administration Protocols
PTP Configuration
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Grandmaster Priority2 – A secondary preference level used in selecting
the grand master clock.
Time Properties
◆
Current UTC Offset – Current offset between TAI (International Atomic
Time) and UTC (Coordinated Universal Time).
◆
Current UTC Offset Valid – Indicates if the current UTC offset is known
to be correct.
◆
Leap59 – Indicates if the last minute of the UTC day contains 59
seconds.
◆ Leap61 – Indicates if the last minute of the UTC day contains 61
seconds.
◆ Time Traceable – Indicates if the time scale of value of the current UTC
offset are traceable to a primary reference.
◆ Frequency Traceable – Indicates if the frequency determining the time
scale is traceable to a primary reference.
◆ PTP Timescale – Indicates if the clock time scale of the grand master
clock is PTP.
◆ Time Source – The source of time used by the grand master clock.
Port Data
◆ Port Enabled – Shows if PTP is enabled on this port.
◆ Port Identity – Port identity information.
■
Clock Identity – A unique 8-octet array based on the IEEE EUI-64
assigned numbers.
■
Port Number – Port on the local switch.
◆ Boundary Clock – A clock at the domain boundary used to bridge
synchronization from one network segment to another.
■
Port State – Shows if device is in master or slave state.
■
Log Min Delay Req. Interval – Delay request message transmit
interval (log value).
■
Peer Mean Path Delay – Mean path delay between upstream peer
and this device.
■
Announce Receipt Timeout – Transmit timeout for PTP
announcement messages.