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Ptp localclock, Ptp filter, Ptp servo – Interlogix NS3550-8T-2S User Manual User Manual

Page 474

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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 [update|show|ratio] []

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