Ptp localclock, Ptp filter, Ptp servo – Interlogix NS3550-8T-2S User Manual User Manual
Page 474
User’s Manual of NS3550-8T-2S
474
Syntax:
PTP PortDataSet
[
Parameters:
: clock instance number [0..3]
: Port list or 'all', default: All ports
: [-3..4] Log2 of mean announce interval in sec.
: [-1..10] Log2 of announce receipt timeout in sec.
: [-7..4] Log2 of sync interval in sec.
: The delaymech parameter takes the following values:
e2e
: The port is configured to use the delay request-response mechanism
p2p
: The port is configured to use the peer delay mechanism
: [-7..5] Log2 of min delay req interval in sec.
: path delay asymmetry measured in ns
: ingress latency measured in ns
: egress latency measured in ns
PTP LocalClock
Description:
Update or show PTP current time, or set master clock ratio.
Syntax:
PTP LocalClock
Parameters:
: clock instance number [0..3]
update|show|ratio
: PTP local clock
update
: The local clock is synchronized to the eCos system clock
show
: The local clock current time is shown
ratio
: Set the local master clock frequency ratio in units of 0,1 PPB
(ratio > 0 => faster clock, ratio < 0 => slower clock)
: [-10.000.000..+10.000.000] Clock frequency ratio in 0,1 PPB.
PTP Filter
Description:
Set or show PTP clock filter data.
Syntax:
PTP Filter
Parameters:
: clock instance number [0..3]
: [1..6] Log2 of timeconstant in delay filter.
: [1..1000] Measurement period in number of sync events.
Note: In configurations with Timestamp enabled PHYs, the period is autom atically increased, if (period*dist
< SyncPackets pr sec/4), i.e. max 4 adjustments are made pr sec.
: [1..10] Distance between servo update n number of measurement periods, if Distance is 1 the offset is averaged over
the 'period', if Distance is >1 the offset is calculated using 'min' offset.
PTP Servo
Description:
Set or show PTP clock servo data.
Syntax:
PTP Servo
Parameters:
: clock instance number [0..3]
: The displaystates parameter takes the following values:
true
: Display clock state and measurements
false
: don't display