The PTP time might jump and get unlocked if it is synchronized with the NTP time or system time, both of which have a lower precision. As a best practice, use PTP for time synchronization when PTP is enabled on the device.

display ptp clock

Use display ptp clock to display PTP clock information.

Syntax

display ptp clock

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

The PTP clock information is display only after you have specified a PTP profile, a PTP mode, and a PTP domain.

Examples

# Display PTP clock information.

<Sysname> display ptp clock

PTP global state : Enabled

PTP profile : IEEE 1588 Version 2

PTP mode : BC

Slave only : No

Lock status : Locked

Clock ID : 000FE2-FFFE-FF0000

Clock type : Local

Clock domain : 0

Number of PTP ports : 1

Priority1 : 128

Priority2 : 128

Clock quality :

Class : 248

Accuracy : 254

Offset (log variance) : 65535

Offset from master : -4 (ns)

Mean path delay : 101 (ns)

Steps removed : 1

Local clock time : Sun Jan 15 20:57:29 2019

Table 1 Command output

Field	Description
PTP global state	Whether PTP is enabled globally: · Enabled. · Disabled.
PTP profile	PTP standard: · IEEE 1588 version 2. · IEEE 802.1AS. · SMPTE ST 2059-2. · AES67-2015.
PTP mode	Clock node type: · BC. · E2ETC. · E2ETC-OC. · OC. · P2PTC. · P2PTC-OC.
Slave only	Whether the OC operates in Slave only mode: · Yes. · No.
Lock status	Whether the PTP time is locked: · Locked. · Unlocked.
Clock ID	Clock ID for the device, which uniquely identifies a PTP device.
Clock type	Clock type of the device. The value is Local, indicating the local clock.
Clock domain	PTP domain where the device resides.
Priority1	Priority 1 value for the device.
Priority2	Priority 2 value for the device.
Class	Time class of the device.
Accuracy	Time accuracy of the device.
Offset (log variance)	Offset of the grandmaster clock.
Offset from master	Offset from the master clock node (parent clock node), in nanoseconds. N/A indicates that information for this field is not obtained.
Mean path delay	Mean path delay, in nanoseconds. N/A indicates that information for this field is not obtained.
Steps removed	Hops from the grandmaster to the local clock node. N/A indicates that information for this field is not obtained.

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display ptp corrections

Use display ptp corrections to display PTP corrections that have occurred on a subordinate port.

Syntax

display ptp corrections

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

The PTP corrections are displayed only when the following conditions are met:

· You have specified a PTP profile, PTP mode, and PTP domain for the device.

· The device has a subordinate port and has performed time or frequency synchronization through the port.

If the subordinate port is changed, the recorded information will be cleared.

Examples

# Display PTP corrections that have occurred on a subordinate port.

<Sysname> display ptp corrections

Slave port Correction time Corrections(s,ns) Rate ratio

MGE0/0/0 Mar 11 03:14:54 2019 0,74 0.999999973

MGE0/0/0 Mar 11 03:14:55 2019 -1,17 0.999999980

Table 2 Command output

Field	Description
Slave port	Name of the subordinate port.
Correction time	Time when the correction occurred.
Corrections(s,ns)	Time corrections in seconds or nanoseconds. N/A indicates that no correction occurred this time.
Rate ratio	Ratio of the subordinate port rate to the master port rate. N/A indicates that no correction occurred this time.

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display ptp foreign-masters-record

Use display ptp foreign-masters-record to display information about foreign master nodes.

Syntax

display ptp foreign-masters-record [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command displays information about foreign master nodes for all interfaces.

Usage guidelines

Foreign master node information is displayed only when the following conditions are met:

· You have specified a PTP mode and PTP domain for the device.

· The device has a port in slave, passive, or subordinate state.

Examples

# Display information about foreign master nodes for all interfaces.

<Sysname> display ptp foreign-masters-record

P1=Priority1, P2=Priority2, C=Class, A=Accuracy,

OSLV=Offset-scaled-log-variance, SR=Steps-removed

GM=Grandmaster

----------------------- -------------------- ---- ---- ---- ---- ------ ---- ---

Interface Clock ID P1 P2 C A OSLV SR GM

----------------------- -------------------- ---- ---- ---- ---- ------ ---- ---

MGE0/0/0 62214E-FFFE-B20100 128 128 248 254 65535 0 Yes

Table 3 Command output

Field	Description
Interface	PTP interface name.
Clock ID	Clock ID of the foreign master node.
C	Time class.
A	Time accuracy.
OSLV	Offset of the grandmaster clock.
SR	Hops from the grandmaster to the local clock node.
GM	Whether the node represents the grandmaster clock: · Yes. · No.

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display ptp interface

Use display ptp interface to display PTP running information for one or all PTP interfaces.

Syntax

display ptp interface [ interface-type interface-number ]

display ptp interface brief

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command displays PTP running information for all PTP interfaces.

brief: Displays brief PTP running information for all interfaces. If you do not specify this keyword, this command displays detailed PTP running information for the specified PTP interface or all PTP interfaces.

Usage guidelines

The detailed PTP running information can be displayed only if you enable PTP on the interface. The brief PTP running information can be displayed only when PTP is operating on the interface.

Examples

# Display brief PTP running information for all PTP interfaces.

<Sysname> display ptp interface brief

Name State Delay mechanism Clock step Asymmetry correction

MGE0/0/0 Slave E2E Two 0

# Display detailed PTP running information for M-GigabitEthernet 0/0/0.

<Sysname> display ptp interface m-gigabitethernet 0/0/0

Clock ID : 000FE2-FFFE-FF0000

Port number : 15

PTP version : 2

PTP state : Enabled

Transport protocol of PTP : User Datagram Protocol (IPv4)

Unicast destination address : 10.10.10.2

DSCP priority : 56

Port state : Slave

Unicast negotiate port role : Request-port

Force state : No

Clock step : Two

Asymmetry correction : 0

Delay mechanism : End to End

Announce interval (log mean) : 1

Announce receipt time out : 3

Sync interval (log mean) : 0

Delay request interval (log mean) : 2

Peer delay request interval (log mean) : 0

Mean path delay : 1357 (ns)

Table 4 Command output

Field	Description
Name	Name of the PTP interface.
State	States of the PTP interface: · Slave—Receives synchronization messages. · Uncalibrated—Temporary state before the interface enters Slave state. · Passive—Neither receives nor sends synchronization messages. A PTP interface is in passive state after it receives an announce messages. · Master—Sends synchronization messages. · Premaster—Temporary state before the interface enters Master state. · Listening—Neither receives nor sends synchronization messages. A PTP interface is in listening state after being initialized. · Faulty—PTP is running incorrectly. A PTP interface in faulty state does not process PTP messages. · Disabled—PTP is not running on the interface. A PTP interface in disabled state does not process PTP messages. · Initializing—The interface is initializing. A PTP interface in initializing state does not process PTP messages. · N/A—No PTP interface state is obtained.
Delay mechanism	Delay measurement mechanism: · End to End—Request-response mechanism. · Peer to Peer—Peer delay mechanism.
Clock step	Mode for carrying timestamps: · One—Single-step mode. This value is not supported in the current software version. · Two—Two-step mode.
Asymmetry correction	Asymmetric delay correction value (in nanoseconds).
Clock ID	Clock ID of the device where the interface resides.
PTP version	PTP version number. The version number is always 2.
PTP state	Whether PTP is enabled on the port: · Enabled. · Disabled.
Transport protocol of PTP	PTP message transport protocol: · User Datagram Protocol (IPv4). · IEEE 802.3/Ethernet.
Port state	PTP port state. It has the same value as the State field.
Unicast negotiate port role	This field is available only when the PTP profile is IEEE 1588 version 2. Role of the port for unicast negotiation. · Request-port · Grant-port This field displays Invalid when unicast negotiation is disabled on the port.
Unicast destination address	Destination IP address for unicast PTP messages that are transmitted over IPv4 UDP.
DSCP priority	DSCP value for PTP messages that are transmitted over IPv4 UDP.
Force state	Whether the force state is configured: · Yes. · No.
Announce interval (log mean)	Announce message sending interval (in seconds) = 2interval. This field displays the value for the interval exponent.
Announce receipt time out	Number of announcement intervals before the receiving node stops receiving announce messages. If a member node does not receive any announce message from the master node within the specified value, it considers the master node invalid.
Sync interval (log mean)	Sync message sending interval (in seconds) = 2interval. This field displays the value for the interval exponent.
Delay request interval (log mean)	Minimum delay request message sending interval (in seconds) = 2interval. This field displays the value for the interval exponent.
Peer delay request interval (log mean)	Peer delay request message sending interval (in seconds) = 2interval. This field displays the value for the interval exponent.
Mean path delay	Mean path delay, in nanoseconds.

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display ptp parent

Use display ptp parent to display information about the parent node (master node).

Syntax

display ptp parent

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

The command does not display information about the parent node (master node) in any of the following circumstances:

· PTP profile, PTP mode, or PTP domain is not configured for the device.

· The clock node type of the device is TC.

· The ptp active force-state command has been executed.

Examples

# Display information about the parent node.

<Sysname> display ptp parent

Parent clock:

Parent clock ID : 000FE2-FFFE-FF0005

Parent port number : 15

Observed parent offset (log variance) : N/A

Observed parent clock phase change rate : N/A

Grandmaster clock:

Grandmaster clock ID: 000FE2-FFFE-FF0000

Grandmaster clock quality:

Class : 248

Accuracy : 254

Offset (log variance) : 65535

Priority1 : 128

Priority2 : 128

Table 5 Command output

Field	Description
Parent port number	Outgoing interface number of the parent clock.
Observed parent offset (log variance)	Offset from the parent clock node. N/A indicates that information for this field is not obtained.
Class	Time class of the grandmaster clock.
Accuracy	Time accuracy of the grandmaster clock.
Offset (log variance)	Offset of the grandmaster clock.
Priority1	Priority 1 value of the grandmaster clock.
Priority2	Priority 2 value of the grandmaster clock.

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display ptp path-trace

Use display ptp path-trace to display brief information about the PTP synchronization path from the GM to the device.

Syntax

display ptp path-trace

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

This command does not have an output if one of the following conditions exists:

· The PTP profile, PTP clock node type, or PTP domain is not configured.

· The clock node type is E2ETC, E2ETC-OC, P2PTC, P2PTC-OC, or T-TC.

· The ptp active force-state command has been configured.

Examples

# Display brief information about the PTP synchronization path from the GM to the device.

<Sysname> display ptp path-trace

Sequence number Clock ID

1 000FE2-FFFE-FF0000

2 000FE3-FFFE-F90000

3 000FE4-FFFE-F50000

4 000FE5-FFFE-F20000

5 000FE6-FFFE-F70000

Table 6 Command output

Field	Description
Sequence number	Sequence number of the clock node.
Clock ID	ID of the clock node

Related commands

ptp active force-state

ptp domain

ptp mode

ptp profile

display ptp port-history

Use display ptp port-history to display historical role change information for PTP ports.

Syntax

display ptp port-history [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command displays historical role change information for all interfaces.

Examples

# Display historical role change information for all PTP ports.

<Sysname> display ptp port-history

Interface: M-GigabitEthernet 0/0/0

Role change: Disabled -> Listening

Time : Apr 15 08:56:50 2020

IfBMCInfo : 0 255 255 255 255 65535 65535 65535 65535 65535 6

Role change: Listening -> Master

Time : Apr 15 08:56:56 2020

IfBMCInfo : 0 255 255 255 255 65535 65535 65535 65535 65535 6

Table 7 Command output

Field	Description
Interface	PTP port name.
Role change	Role change of the PTP port.
Time	Time at which the PTP port role was calculated.
IfBMCInfo	BMC information for the PTP port. When the PTP profile is IEEE 1588 Version 2, the information includes protocol type, priority 1, clock class, clock accuracy, priority 2, sending port number, receiving port number, source port number, hops, offset (log variance), and port number, which are separated by spaces.

display ptp statistics

Use display ptp statistics to display PTP statistics.

Syntax

display ptp statistics [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command displays PTP statistics on all interfaces.

Usage guidelines

The command displays PTP statistics only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Display PTP statistics on M-GigabitEthernet 0/0/0.

<Sysname> display ptp statistics interface m-gigabitethernet 0/0/0

Received packets

--------------------------------------------------------------------------

Announce :0 Sync :0 Signaling :0

DelayReq :0 DelayResp :0 FollowUp :0

PdelayReq:0 PdelayResp:0 PdelayRespFollowUp :0

Sent packets

--------------------------------------------------------------------------

Announce :476 Sync :2543 Signaling :0

DelayReq :0 DelayResp :0 FollowUp :2542

PdelayReq:238 PdelayResp:0 PdelayRespFollowUp :0

Discarded packets

--------------------------------------------------------------------------

Announce :0 Sync :0 Signaling :0

DelayReq :0 DelayResp :0 FollowUp :0

PdelayReq:0 PdelayResp:0 PdelayRespFollowUp :0

# Display PTP statistics on all interfaces.

<Sysname> display ptp statistics

Interface : M-GigabitEthernet 0/0/0

Received packets

--------------------------------------------------------------------------

Announce :2353 Sync :4700 Signaling :0

DelayReq :0 DelayResp :4450 FollowUp :4700

PdelayReq:0 PdelayResp:0 PdelayRespFollowUp :0

Sent packets

--------------------------------------------------------------------------

Announce :8 Sync :14 Signaling :0

DelayReq :4450 DelayResp :0 FollowUp :14

PdelayReq:0 PdelayResp:0 PdelayRespFollowUp :0

Discarded packets

--------------------------------------------------------------------------

Announce :0 Sync :4 Signaling :0

DelayReq :0 DelayResp :0 FollowUp :4

PdelayReq:0 PdelayResp:0 PdelayRespFollowUp :0

Table 8 Command output

Field	Description
Received packets	Statistics about received PTP messages.
Sent packets	Statistics about sent PTP messages.
Discarded packets	Statistics about discarded PTP messages.

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display ptp time-property

Use display ptp time-property to display PTP clock time information.

Syntax

display ptp time-property

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

This command does not display PTP clock time information in any of the following circumstances:

· PTP profile, PTP mode, or PTP domain is not configured for the device.

· The clock node type of the device is TC.

· The ptp active force-state command has been executed.

Examples

# Display PTP clock time information.

<Sysname> display ptp time-property

PTP clock time property:

Current UTC offset valid : True

Current UTC offset : 33

Leap59 : Yes

Leap61 : No

Time traceable : True

Frequency traceable : True

PTP timescale : True

Time source : 0xA0 (Internal oscillator)

Table 9 Command output

Field	Description
Current UTC offset valid	Whether the Coordinated Universal Time (UTC) offset is valid: · True—Yes. · False—No.
Current UTC offset	Cumulative offset (in seconds) between the UTC of the grandmaster clock and the International Atomic Time (TAI).
Leap59	Whether cumulative offset is minus 1: · Yes. · No.
Leap61	Whether cumulative offset is plus 1: · Yes. · No.
Time traceable	Whether the PTP time is traceable: · True—Yes. · False—No.
Frequency traceable	Whether the PTP frequency is traceable: · True—Yes. · False—No.
PTP timescale	The possible timescales available for use by the grandmaster clock: · True—PTP timescale. · False—Non-PTP timescale.
Time source	Attributes of the grandmaster clock: · Atomic clock. · GPS. · Handset. · Internal oscillator. · NTP. · Other. · PTP. · Terrestrial radio. · Unknown.

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ptp active force-state

Use ptp active force-state to activate the port role configuration.

Use undo ptp active force-state to restore the default.

Syntax

ptp active force-state

undo ptp active force-state

Default

The port role configuration is not activated.

Views

System view

Predefined user roles

network-admin

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Activate the port role configuration.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] ptp active force-state

Related commands

ptp domain

ptp force-state

ptp mode

ptp profile

ptp announce-interval

Use ptp announce-interval to set the interval for sending announce messages.

Use undo ptp announce-interval to restore the default.

Syntax

ptp announce-interval interval

undo ptp announce-interval

Default

The interval argument value is 1 and the announce message sending interval is 2 (21) seconds.

Views

Management 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 announce messages. The value range for the interval argument is 0 to 4.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

The interval at which the master node sends announce messages depends on whether unicast negotiation is enabled.

· If unicast negotiation is not enabled, the master node uses the value configured by using the ptp announce-interval command on its interface as the interval.

· If unicast negotiation is enabled, you must configure the interval on the request-port of the client. The request-port uses the configured interval to negotiate with the grant-port on the server for the interval at which the grant-port sends announce messages to the client. If the negotiation succeeds, the grant-port sends announce messages at the configured interval to the client. If the negotiation fails, the grant-port does not send announce messages to the client.

Examples

# Set the announce message sending interval to 4 (22) seconds on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp announce-interval 2

Related commands

ptp domain

ptp mode

ptp profile

ptp announce-timeout

Use ptp announce-timeout to set the timeout multiplier for the announce message receiving interval.

Use undo ptp announce-timeout to restore the default.

Syntax

ptp announce-timeout multiple-value

undo ptp announce-timeout

Default

The timeout multiplier for the announce message receiving interval is 3.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

multiple-value: Sets the timeout multiplier for the announce message receiving interval, in the range of 2 to 10.

Usage guidelines

A master node periodically sends announce messages to the member nodes. If a member node does not receive any announce message from the master node within multiple-value times the announce message sending interval, it determines that the master node is invalid.

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

To ensure a stable PTP network, set the timeout multiplier for receiving announce messages to a value in the range of 5 to 7.

Examples

# Set the timeout multiplier for the announce message sending interval to 5 on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp announce-timeout 5

Related commands

ptp announce-interval

ptp domain

ptp mode

ptp profile

ptp asymmetry-correction

Use ptp asymmetry-correction to set the asymmetric delay correction time.

Use undo ptp asymmetry-correction to restore the default.

Syntax

ptp asymmetry-correction { minus | plus } value

undo ptp asymmetry-correction

Default

The asymmetric delay correction time is 0 nanoseconds, which means that delay correction is not performed.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

minus: Subtracts the specified asymmetric delay correction value.

plus: Adds the specified asymmetric delay correction value.

value: Specifies the asymmetric delay correction value in the range of 0 to 2000000 nanoseconds.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Set the asymmetric delay correction time to 100 nanoseconds on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp asymmetry-correction plus 100

Related commands

ptp domain

ptp mode

ptp profile

ptp clock-step

Use ptp clock-step to configure the mode for carrying timestamps.

Use undo ptp clock-step to restore the default.

Syntax

ptp clock-step two-step

undo ptp clock-step

Default

Two-step mode is used for carrying timestamps.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

two-step: Specifies the two-step mode.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Configure the two-step timestamp-carrying mode on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp clock-step two-step

Related commands

ptp domain

ptp mode

ptp profile

ptp delay-mechanism

Use ptp delay-mechanism to specify a delay measurement mechanism for a BC or an OC.

Use undo ptp delay-mechanism to restore the default.

Syntax

ptp delay-mechanism { e2e | p2p }

undo ptp delay-mechanism

Default

The request-response delay measurement applies.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

e2e: Specifies the request-response mechanism.

p2p: Specifies the peer delay mechanism.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device. Follow these restrictions and guidelines when you configure this command:

· You can configure this command only for a BC or OC clock node.

· The E2ETC, E2ETC+OC, P2PTC, and P2PTC+OC clock nodes do not support this command.

Examples

# Specify the OC clock node type. Specify the request-response delay measurement mechanism (e2e) on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp delay-mechanism e2e

Related commands

ptp domain

ptp mode

ptp profile

ptp unicast-negotiate

ptp destination-mac

Use ptp destination-mac to configure the destination MAC address for non-peer delay messages.

Use undo ptp destination-mac to restore the default.

Syntax

ptp destination-mac mac-address

undo ptp destination-mac

Default

The destination MAC address for non-peer delay messages is 011B-1900-0000.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

mac-address: Specifies the destination MAC address for non-peer delay messages as 0180-C200-000E or 011B-1900-0000.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Peer delay messages include Pdelay_Req, Pdelay_Resp, and Pdelay_Resp_Follow_Up messages. The destination MAC address for peer delay messages is 0180-C200-000E, which cannot be modified.

This command takes effect only if PTP messages are encapsulated in IEEE 802.3/Ethernet packets.

Examples

# Set the destination MAC address for non-peer delay messages to 0180-C200-000E on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet 0/0/0] ptp destination-mac 0180-c200-000e

Related commands

ptp domain

ptp mode

ptp profile

ptp domain

Use ptp domain to specify a PTP domain.

Use undo ptp domain to restore the default.

Syntax

ptp domain domain-number

undo ptp domain

Default

No PTP domain exists.

Views

System view

Predefined user roles

network-admin

Parameters

domain-number: Specifies a PTP domain by its number. The value range for the domain-number argument is 0 to 255.

Usage guidelines

You can configure this command only after you have specified a PTP profile and PTP mode for the device.

If you delete a PTP domain, all PTP configurations related to the domain are deleted, except the PTP profile and PTP mode settings.

Examples

# Assign the device to PTP domain 2.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 2

Related commands

ptp mode

ptp profile

ptp enable

Use ptp enable to enable PTP.

Use undo ptp enable to disable PTP.

Syntax

ptp enable

undo ptp enable

Default

PTP is disabled.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

You can enable PTP on only one port if the clock node type of the device is OC.

For PTP to run on an interface, enable PTP globally and on the interface. As a best practice, enable PTP on an interface after you complete PTP configuration on the interface.

Examples

# Specify the OC clock node type and enable PTP on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp enable

Related commands

ptp domain

ptp global enable

ptp mode

ptp profile

ptp force-state

Use ptp force-state to configure a role for a PTP port.

Use undo ptp force-state to restore the default.

Syntax

ptp force-state { master | passive | slave }

undo ptp force-state

Default

The PTP port role is automatically calculated based on the BMC algorithm.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

master: Specifies the PTP port as a master port.

passive: Specifies the PTP port as a passive port.

slave: Specifies the PTP port as a subordinate port.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

You can configure only one subordinate port for a device.

By default, the PTP port roles are automatically negotiated based on the BMC algorithm. If you use this command to change the role of one PTP port, all the other PTP ports in the PTP domain stop working. For these PTP ports to function, you must specify a role for each of them by using this command. As a best practice, enable automatic negotiation of PTP port roles based on the BMC algorithm.

After changing the role of a PTP port, you must execute the ptp active force-state command for the new PTP port role to take effect.

Under the IEEE 1588 version 2 PTP profile, the ptp force-state command and the ptp unicast-negotiate command are mutually exclusive

Examples

# Specify the OC clock node type and specify M-GigabitEthernet 0/0/0 as a subordinate port.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp force-state slave

Related commands

ptp active force-state

ptp domain

ptp mode

ptp profile

ptp slave-only

ptp unicast-negotiate

ptp global enable

Use ptp global enable to enable PTP globally.

Use undo ptp global enable to disable PTP globally.

Syntax

ptp global enable

undo ptp global enable

Default

PTP is enabled globally.

Views

System view

Predefined user roles

network-admin

Usage guidelines

For PTP to run on an interface, enable PTP globally and on the interface.

Examples

# Enable PTP globally.

<Sysname> system-view

[Sysname] ptp global enable

Related commands

ptp enable

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 (20) second.

Views

Management 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. The value range for the interval argument is –4 to 6.

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.

Examples

# Set the minimum interval to 4 (22) seconds for sending delay request messages on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp min-delayreq-interval 2

Related commands

ptp domain

ptp mode

ptp profile

ptp syn-interval

ptp mode

Use ptp mode to specify a clock node type for the device.

Use undo ptp mode to restore the default.

Syntax

ptp mode { bc | e2etc | e2etc-oc | oc | p2ptc | p2ptc-oc }

undo ptp mode

Default

No clock node type is specified.

Views

System view

Predefined user roles

network-admin

Parameters

bc: Specifies the boundary clock (BC) type.

e2etc: Specifies the end-to-end transparent clock (E2ETC) type.

e2etc-oc: Specifies the E2ETC+OC type.

oc: Specifies the ordinary clock (OC) type.

p2ptc: Specifies the peer-to-peer transparent clock (P2PTC) type.

p2ptc-oc: Specifies the P2PTC+OC type.

Usage guidelines

CAUTION:

If you change the clock node type for the device, all settings except for the PTP profile will be removed.

‌

You can configure this command only after you have specified a PTP profile for the device.

This command is available only after you specify a PTP profile.

If the ptp unicast-forward enable command has been configured, you can specify only the E2ETC clock node type for the device.

Examples

# Specify the OC clock node type for the device.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

Related commands

ptp profile

ptp unicast-forward enable

ptp path-trace disable

Use ptp path-trace disable to disable PTP path tracing.

Use undo ptp path-trace disable to enable PTP path tracing.

Syntax

ptp path-trace disable

undo ptp path-trace disable

Default

PTP path tracing is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

PTP path tracing traces the clock nodes that the clock signals traverse from the GM to the device. The system can obtain complete path tracing information only when all clock nodes on the path are enabled with PTP path tracing. If a device on the path does not support PTP path tracing, disable this feature to prevent PTP intercommunication issues.

This command is available only after you have specified a PTP profile, PTP clock node type, and PTP domain.

Examples

# Disable PTP path tracing.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[Sysname] ptp domain 1

[Sysname] ptp path-trace disable

Related commands

display ptp path-trace

ptp mode

ptp profile

ptp pdelay-req-interval

Use ptp pdelay-req-interval to set the interval for sending peer delay request messages.

Use undo ptp pdelay-req-interval to restore the default.

Syntax

ptp pdelay-req-interval interval

undo ptp pdelay-req-interval

Default

The interval for sending peer delay request messages is 1 (20) second.

Views

Management 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 peer delay request messages. The value range for the interval argument is 0 to 5.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Set the interval to 4 (22) seconds for sending peer delay request messages on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp pdelay-req-interval 2

Related commands

ptp domain

ptp mode

ptp profile

ptp syn-interval

ptp port-mode

Use ptp port-mode to specify the OC port type for a TC+OC (including E2ETC+OC and P2PTC+OC) clock.

Use undo ptp port-mode to restore the default.

Syntax

ptp port-mode oc

undo ptp port-mode

Default

The type of all ports on an E2ETC+OC or a P2PTC+OC clock is TC.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

oc: Specifies the OC port type for a TC+OC clock.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

This command is applicable only for E2ETC+OC and P2PTC+OC clocks.

Examples

# Specify the P2PTC+OC clock node type for the device. Specify the OC port type for M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode p2ptc-oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp port-mode oc

Related commands

ptp domain

ptp mode

ptp profile

ptp priority

Use ptp priority clock-source to configure the priority for the specified clock for GM election through BMC.

Use undo ptp priority clock-source to restore the specified priority to its default value.

Syntax

ptp priority clock-source local { priority1 priority1 | priority2 priority2 }

undo ptp priority clock-source local { priority1 | priority2 }

Default

The priority 1 and priority 2 values are both 128.

Views

System view

Predefined user roles

network-admin

Parameters

local: Specifies the local clock.

priority1 priority1: Specifies priority 1 for the clock, in the range of 0 to 255. A numerically smaller value has higher priority.

priority2 priority2: Specifies priority 2 for the clock, in the range of 0 to 255. A numerically smaller value has higher priority.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Set priority 1 to 10 for the local clock.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] ptp priority clock-source local priority1 10

Related commands

ptp domain

ptp mode

ptp profile

Use ptp profile to specify a PTP profile for the device.

Use undo ptp profile to restore the default.

Syntax

ptp profile 1588v2

undo ptp profile

Default

PTP operates only after you specify a PTP profile.

Views

System view

Predefined user roles

network-admin

Parameters

1588v2: Specifies the IEEE 1588 version 2 PTP profile.

Usage guidelines

Specify a PTP profile for the device before any other PTP configurations.

Changing or removing a PTP profile clears all settings under the PTP profile.

Examples

# Specify the IEEE 1588 version 2 PTP profile.

<Sysname> system-view

[Sysname] ptp profile 1588v2

ptp slave-only

Use ptp slave-only to configure the OC to operate only as a member clock.

Use undo ptp slave-only to restore the default.

Syntax

ptp slave-only

undo ptp slave-only

Default

An OC can operate either as a master clock or a member clock.

Views

System view

Predefined user roles

network-admin

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

This command is applicable only to OCs.

You can execute the ptp force-state command to specify a subordinate port as a master port or passive port even if the OC operates as a member clock.

Under the IEEE 1588 version 2 PTP profile, the ptp slave-only command and the ptp unicast-negotiate command are mutually exclusive.

Examples

# Specify the OC clock node type for the device. Configure the OC to operate only as a member clock.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] ptp slave-only

Related commands

ptp domain

ptp force-state

ptp mode

ptp profile

ptp unicast-negotiate

ptp source

Use ptp source to configure the source IP address for multicast PTP messages transmitted over IPv4 UDP.

Use undo ptp source to remove the specified source IP address for multicast PTP messages transmitted over IPv4 UDP.

NOTE:

This command is supported only in E6709 and later.

Syntax

ptp source ip-address

undo ptp source ip-address

Default

No source IP address is configured for multicast PTP messages transmitted over IPv4 UDP.

Views

System view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the source IP address for multicast PTP messages transmitted over IPv4 UDP.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

This command takes effect only when PTP messages are transmitted over IPv4 UDP in multicast mode.

Examples

# Configure the source IP address as 3.5.1.5 for multicast PTP messages transmitted over IPv4 UDP.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] ptp source 3.5.1.5

Related commands

ptp domain

ptp mode

ptp profile

ptp transport-protocol

ptp syn-interval

Use ptp syn-interval to set the interval for sending Sync messages.

Use undo ptp syn-interval to restore the default.

Syntax

ptp syn-interval interval

undo ptp syn-interval

Default

The interval argument value is 0 and the interval for sending Sync messages is 1 (20) second.

Views

Management 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 Sync messages. In versions earlier than R6712, the value range for the interval argument is –1 to +1. In R6712 and later, the value range for the interval argument is –5 to +1.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

The interval at which the master node sends Sync messages to member nodes depends on whether unicast negotiation is enabled (only the IEEE 1588 version 2 PTP profile supports unicast negotiation). (Devices that support unicast negotiation)

· If unicast negotiation is not enabled, the master node uses the value configured by using the ptp syn-interval command on its interface as the interval.

· If unicast negotiation is enabled, you must configure the interval on the request-port of the client. The request-port uses the configured interval to negotiate with the grant-port on the server for the interval at which the grant-port sends Sync messages to the client. If the negotiation succeeds, the grant-port sends Sync messages at the configured interval to the client. If the negotiation fails, the grant-port does not send Sync messages to the client

Examples

# Set the Sync message sending interval to 2 (21) seconds on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet 0/0/0] ptp syn-interval 1

Related commands

ptp domain

ptp mode

ptp profile

ptp transport-protocol

Use ptp transport-protocol to specify the IPv4 PTP transport protocol for PTP messages.

Use undo ptp transport-protocol to restore the default.

NOTE:

This command is supported only in E6709 and later.

Syntax

ptp transport-protocol udp

undo ptp transport-protocol

Default

PTP messages are transported through IEEE 802.3 and Ethernet.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

udp: Specifies the IPv4 PTP transport protocol for PTP messages.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

Examples

# Specify the IPv4 PTP transport protocol for PTP messages on M-GigabitEthernet 0/0/0.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp transport-protocol udp

Related commands

ptp domain

ptp mode

ptp profile

ptp unicast-destination

Use ptp unicast-destination to configure the destination IP address for unicast PTP messages transmitted over IPv4 UDP.

Use undo ptp unicast-destination to restore the default.

NOTE:

This command is supported only in E6709 and later.

Syntax

ptp unicast-destination ip-address

undo ptp unicast-destination ip-address

Default

No destination IP address is configured for unicast PTP messages transmitted over IPv4 UDP.

Views

Management Ethernet interface view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the destination IP address for unicast PTP messages transmitted over IPv4 UDP.

Usage guidelines

You can configure this command only after you have specified a PTP profile, PTP mode, and PTP domain for the device.

This command takes effect only when PTP messages are transmitted over IPv4 UDP.

Examples

# Set the destination IP address to 10.10.10.2 for unicast PTP messages transmitted over IPv4 UDP.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 0

[Sysname] interface m-gigabitethernet 0/0/0

[Sysname-M-GigabitEthernet0/0/0] ptp transport-protocol udp

[Sysname-M-GigabitEthernet0/0/0] ptp unicast-destination 10.10.10.2

Related commands

ptp domain

ptp mode

ptp profile

ptp transport-protocol

ptp utc

Use ptp utc to add or subtract one second from the UTC scale on the specified date.

Use undo ptp utc to restore the default.

Syntax

ptp utc { leap59-date | leap61-date } date

undo ptp utc { leap59-date | leap61-date }

Default

No second is added to or subtracted from the UTC scale.

Views

System view

Predefined user roles

network-admin

Parameters

leap59-date: Subtracts one second from the UTC time scale at the last minute (23:59) on the specified date.

leap61-date: Adds one second to the UTC time scale at the last minute (23:59) on the specified date.

date: Sets the date to adjust the UTC, in the format of YYYY/MM/DD. The value range for YYYY and MM is 2000 to 2035 and 1 to 12, respectively. The value range for DD depends on the specified month. For the configuration to take effect, do not specify a date earlier than the current date.

Usage guidelines

UTC is based on International Atomic Time (TAI), a high-precision atomic coordinate time scale, and adjusted by leap seconds for synchronization with astronomical time.

UTC is constantly compared with UT1 (astronomical time, reflecting the earth's rotation). The International Bureau of Weights and Measures (BIPM) will notify to add or subtract one second from the UTC time scale at the last minute on a specific date (typically June 30 or December 31) to ensure that the difference between UTC and UT1 is within one second.

You can use this command to add or subtract one second from the UTC time on the specific date as published by BIPM.

You can configure this command only after you have specified a PTP profile and PTP mode for the device.

This command takes effect only when it is configured on the master clock node and the local clock of the master clock node is the GM.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Assume that the current date is August 8, 2016. Specify the BC clock node type for the device. According to information published by BIPM, add one second to the UTC time at 23:59:60 on December 31, 2016.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[Sysname] ptp utc offset 36

[Sysname] ptp utc leap61-date 2016/12/31

Related commands

ptp mode

ptp profile

ptp utc offset

Use ptp utc offset to set the cumulative offset of UTC relative to TAI.

Use undo ptp utc offset to restore the default.

Syntax

ptp utc offset utc-offset

undo ptp utc offset

Default

The cumulative offset of UTC relative to TAI is 0 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

utc-offset: Sets the cumulative offset of UTC relative to TAI, in seconds. The value range varies by device model.

Usage guidelines

A time difference exists between UTC and TAI. Internet devices typically use the UTC time. To provide more accurate time, PTP also uses TAI. If the device acts as a subordinate clock node, it uses the UTC time and TAI time of the clock reference. If the device acts as the clock reference, it will calculate the TAI time based on the UTC time, and synchronize the UTC and TAI time to the subordinate clocks. TAI provided by the device = Current UTC + cumulative offset + leap second.

BIPM periodically publishes the cumulative offset of UTC relative to TAI. Use the value published by BIPM to configure this command.

You can configure this command only after you have specified a PTP profile and PTP mode for the device.

This command takes effect only when it is configured on the master clock node and the local clock of the master clock node is the GM.

Examples

# According to information published by BIPM, the cumulative offset of UTC relative to TAI is 37 seconds. Set the cumulative offset of UTC relative to TAI to 37 seconds.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[Sysname] ptp utc offset 37

Related commands

ptp mode

ptp profile

ptp utc

reset ptp statistics

Use reset ptp statistics to clear PTP statistics.

Syntax

reset ptp statistics [ interface interface-type interface-number ]

Views

User view

Predefined user roles

network-admin

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, this command clears PTP statistics on all interfaces.

Examples

# Clear PTP statistics on M-GigabitEthernet 0/0/0.

<Sysname> reset ptp statistics interface m-gigabitethernet 0/0/0

Related commands

display ptp statistics

H3C S6116 Ultra-Low Latency Switch Series Command References-Release 671x-6W101

PTP commands

ptp destination-mac

ptp source

reset ptp statistics

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