Basic System Configuration Guide System Management
Edition: 01 3HE 11010 AAAC TQZZA 393
log-delay-interval
Syntax log-delay-interval log-delay-interval
no log-delay-interval
Context config>system>ptp>clock>port
Description This command configures the minimum interval between multicast Delay_Req messages for
PTP with Ethernet encapsulation. This parameter is applied on a per-port basis and does not
apply to peers. PTP slave ports use this interval unless the parent port indicates a longer
interval. PTP master ports advertise this interval to external slave ports as the minimum
acceptable interval for Delay_Req messages from those slave ports. The 7705 SAR supports
the IEEE 1588 requirement that a port in slave mode check the logMessageInterval field of
received multicast Delay_Resp messages. If the value of the logMessageInterval field for
those messages is greater than the value configured locally to generate Delay_Req
messages, then the slave port must use the longer interval for generating Delay_Req
messages.
The log-delay-interval is calculated using the binary logarithm of the value of the interval in
seconds.
The log-delay-interval is only applicable when the clock-id is csm. For PTP with IP
encapsulation (clock-id is 1 to 16), the value configured for the log-sync-interval is also used
as the interval for Delay-Req messages.
The no form of this command returns the configuration to the default value. The default value
varies depending on the configuration of the profile command.
Default –6 when the profile is configured as ieee1588-2008
–4 when the profile is configured as g8275dot1-2014
Parameters log-delay-interval — specifies the expected interval between the receipt of Delay_Req
messages
Values –6 to 0, where –6 is 64 packets/s, –5 is 32 packets/s, –4 is
16 packets/s, –3 is 8 packets/s, –2 is 4 packets/s, –1 is 2 packets/s,
and 0 is 1 packet/s, when the profile is configured as either
ieee1588-2008 or g8275dot1-2014
log-sync-interval
Syntax log-sync-interval log-sync-interval
no log-sync-interval
Context config>system>ptp>clock>port
config>system>ptp>clock>ptp-port
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