ECS4660-28F_Management Guide-R03

C HAPTER 24 | System Management Commands
Precision Time Protocol
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ptp adjust This command adjusts the system time based information in received Sync
messages. Use the no form to restore the default setting.
SYNTAX
[no] ptp adjust
DEFAULT SETTING
Disabled
COMMAND MODE
Global Configuration
COMMAND USAGE
◆ When this command is enabled, the switch will adjust the time of the
local clock to match that of the master clock.
◆ When synchronization is enabled with this command, the switch will
exchange PTP timing messages on the communication path to the
master clock. By exchanging Sync, Follow_Up, Delay_Req, and
Delay_Resp messages, the switch calculates the offset of the slave’s
clock with respect to the master clock. It then adjusts the time reported
in the received Sync message, ensuring that the offset from the master
clock listed in the Current Data Set is now zero (as displayed by the
show ptp information command).
EXAMPLE
Console(config)#ptp adjust
Console(config)#
ptp log-min-delay-
request-interval
Sets the delay request message transmit interval IC
ptp log-min-pdelay-
request-interval
Sets the peer delay request message transmit interval IC
ptp log-sync-interval Sets the synchronization message transmit interval IC
ptp port-enable Enables PTP capability on a port IC
ptp transport Sets the message transport method to Ethernet,
IPv4 UDP, or IPv6 UDP
IC
ptp port-release Returns a port to PTP enabled state after having been
disabled by a PTP management message
PE
show ptp configuration Shows configuration settings PE
show ptp foreign-master Shows PTP announcements from neighbors PE
show ptp information Shows configured and protocol negotiated settings PE
Table 76: PTP Commands (Continued)
Command Function Mode