ECS4660-28F_Management Guide-R03

C HAPTER 24 | System Management Commands
Precision Time Protocol
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EXAMPLE
Console#show ptp foreign-master ethernet 1/1
Port Master Identity Master Clock Quality Pri1 Pri2 Valid Best
-------- -------------------------- ---------------------- ---- ---- ----- ----
Eth 1/ 1 00:00:22:00:13:23:00:00 2 C1: 251 Ac: 254 Va:-1 0 0 Yes Yes
Pch 2 00:00:22:00:13:23:00:00 2 C1: 251 Ac: 254 Va:-1 0 0 No No
Console(config-if)#
show ptp
information
This command shows configured and protocol negotiated settings.
SYNTAX
show ptp information [boundary [current | default | parent |
time-properties | interface]| transparent [interface]]
boundary – Shows information for a boundary clock.
current – Shows information about the number of steps (clock
hops) from the grand master, time offset from the grand master,
and mean path delay from the grand master.
default – Shows default PTP settings.
parent – Shows information on the parent data set and grand
master clock quality.
time-properties – Shows information about the time attributes.
transparent – Shows information for a transparent clock.
interface
ethernet unit/port-list
unit - Stack unit. (Range: 1)
port-list - Physical port number or list of port numbers.
Separate nonconsecutive port numbers with a comma and
Table 82: show ptp foreign-mater - display description
Field Description
Port Interface through which this message was received.
Master Identity A unique 8-octet array based on the IEEE EUI-64
assigned numbers, and the port number
Master Clock Quality The reported clock quality components include:
◆
Cl – Clock class defines the clock’s International
Atomic Time (TAI) traceability.
◆
Ac – Clock accuracy defines the accuracy of the
clock.
◆
Va – Clock variance defines the stability of the clock
Pri1 A preference level used in selecting the master clock
Pri2 A secondary preference level used in selecting the master
clock
Valid This record is used to calculate Best master clock
Best This record is the best record of all foreign masters