H3C SOHO IE4300, Command Reference Manual

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19
<Sysname> system-view
[
Sysname
]
ptp profile 1588v2
[
Sysname
]
ptp mode oc
[
Sysname
]
interface gigabitethernet 1/0/1
[
Sysname-GigabitEthernet1/0/1
]
ptp force-state slave
Related commands
ptp active force-state
ptp mode
ptp profile
ptp slave-only
ptp min-delayreq-interval
Use
ptp min-delayreq-interval
to set the minimum interval for sending delay request
messages.
Use
undo ptp min-delayreq-interval
to restore the default.
Syntax
ptp min-delayreq-interval interval
undo ptp min-delayreq-interval
Default
The minimum interval for sending delay request messages is 1 (2
0
) second.
Views
Layer 2 Ethernet interface view
Predefined user roles
network-admin
Parameters
interval
: Specifies an exponent, to the power of which base 2 is raised to get the interval in
seconds for sending delay request messages. When the PTP profile is IEEE 1588 version 2, the
value range for the interval argument is –4 to 6. When the PTP profile is SMPTE ST 2059-2, the
value range for the interval argument is –5 to 4.
Usage guidelines
When a member clock receives a Sync message, it responds by sending a Delay_Req message and
starts a timer defined by this command. The member clock will not send another Delay_Req
message until it receives a Sync message after the timer expires.
You can configure this command only after you have specified a PTP profile, PTP mode, and PTP
domain for the device.
In PTP multicast transport mode, this command takes effect only when configured on the master
clock. The master clock sends the value to a member clock through PTP messages to control the
interval for the member clock to send Delay_Req messages. To view the interval, execute the
display ptp interface
command on the member clock.
In PTP unicast transport mode, this command takes effect when configured on member clocks. It
does not take effect when configured on the master clock.
When the PTP profile is SMPTE ST 2059-2, set the
interval
argument to a value in the range of
ptp syn-interval interval
to
ptp syn-interval interval
plus 5 as a best practice.