11-Network Management and Monitoring Command Reference

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04-PTP commands
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04-PTP commands 194.35 KB

PTP commands

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

This command does not display any information if you have not specified a PTP profile (PTP standard) or a PTP mode (PTP clock node type).

Examples

# Display PTP clock information.

<Sysname> display ptp clock

PTP profile         : IEEE 1588 Version 2

PTP mode            : BC

Slave only          : No

Sync uncertain      : Disabled

Clock state         : Locked

Clock ID            : 140570-FFFE-930100

Clock type          : Local

Clock domain        : 0

Number of PTP ports : 0

Priority1      : 128

Priority2      : 128

Clock quality :

 Class                 : 248

 Accuracy              : 254

 Offset (log variance) : 65535

Offset from master  : 0 (ns)

Mean path delay     : 0 (ns)

Steps removed       : 0

Local clock time    : Tue Dec 3 19:25:49 2019

Clock source info:

 Clock   Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)

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

 Local   128  128  254      248   160     N/A       Active    65535

 ToD0    128  128  32       6     32      N/A       Inactive  65535

 ToD1    128  128  32       6     32      N/A       Inactive  65535

Table 1 Command output

Field

Description

PTP profile

PTP standard:

·     IEEE 1588 version 2.

·     IEEE 802.1AS.

PTP mode

PTP clock node type:

·     BC.

·     E2ETC.

·     E2ETC-OC.

·     OC.

·     P2PTC.

·     P2PTC-OC.

Slave only

Whether the OC operates in Slave only mode:

·     Yes.

·     No.

Sync uncertain

Whether the device is enabled to notify the downstream nodes of its time synchronization state:

·     Disabled.

·     Enabled.

Clock state

PTP clock state:

·     Disabled—The PTP clock state feature is disabled.

·     Free-Run—The PTP clock has never been synchronized to a time source and is not in the process of synchronizing to a time source.

·     Acquiring—The PTP clock is in the process of synchronizing to a time source.

·     Locked—The PTP clock has been synchronized to a time source.

·     Holdover—The PTP clock is in holdover state.

Clock ID

Clock ID for the device, which uniquely identifies a PTP device.

Clock type

Clock type of the device:

Local—Local clock.

Clock domain

PTP domain where the device resides.

Priority1

Priority 1 value for the PTP clock.

Priority2

Priority 2 value for the PTP clock.

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 clock to the local clock node.

N/A indicates that information for this field is not obtained.

Clock source info

Information about the clock source.

Clock

Clock source type:

Local—Local clock.

Pri1

Priority 1 value of the clock source.

Pri2

Priority 2 value of the clock source.

TimeSrc

Time source of the clock source.

Direction

For a local clock source, this field displays N/A.

In-Status

Whether the clock source is active:

For a local clock source, this field displays N/A.

 

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 and PTP clock node type 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

HGE1/0/1     Mar 11 03:14:54 2012     0,74                  0.999999973

HGE1/0/1     Mar 11 03:14:55 2012    -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.

 

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:

·     The PTP profile is IEEE 1588 version 2.

·     You have specified a PTP clock node type for the device.

·     The device has a PTP port in slave or uncalibrated state.

Examples

# Display information about foreign master nodes for all interfaces.

<Sysname> display ptp foreign-masters-record

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

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

GM=Grandmaster

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

Interface    Clock ID             P1   P2   LP   C    A    OSLV   SR   GM

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

HGE1/0/1     000FE2-FFFE-FF0000   0    128  128  248  254  65535  0    Yes

HGE1/0/2     000FE2-FFFE-FF0001   0    128  128  248  254  65535  1    No

Table 3 Command output

Field

Description

Interface

Name of a PTP interface.

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.

 

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 | 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 PTP 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

This command displays detailed PTP information only for PTP-enabled interfaces. 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

HGE1/0/1     Slave        E2E              Two         0

HGE1/0/2     Passive      E2E              Two         0

# Display detailed PTP running information for HundredGigE 1/0/1.

<Sysname> display ptp interface hundredgige 1/0/1

Clock ID                    : 000FE2-FFFE-FF0000

Port number                 : 15

PTP version                 : 2

PTP enable                  : Enabled

Transport of PTP            : User Datagram Protocol (IPv4)

Unicast destination address : 10.10.10.2

DSCP priority               : 56

Port state                  : Slave

Force state                 : No

Clock step                  : Two

Asymmetry correction        : 0

Delay mechanism             : End to End

Unicast negotiate port role : Grant-port

Announce interval (log mean)           : 1

Announce receipt time out              : 3

Sync interval (log mean)               : 2

Delay request interval (log mean)      : 2

Delay response interval (log mean)     : 0

Peer delay request interval (log mean) : 0

Mean path delay                        : 0 (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.

·     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 enable

Whether PTP is enabled or disabled:

·     Enabled.

·     Disabled.

Transport of PTP

PTP messages are transported by:

·     User Datagram Protocol (IPv4).

·     IEEE 802.3/Ethernet.

Unicast destination address

Destination IP address for unicast PTP messages transmitted over IPv4 UDP. This field is not displayed if the ptp unicast-destination command is not executed.

DSCP priority

DSCP value for PTP messages transmitted over IPv4 UDP. This field is not displayed if the ptp dscp command is not executed.

VLAN

VLAN ID for PTP messages. This field is not displayed if the ptp vlan command is not executed.

Dot1p priority

802.1p precedence for PTP messages. This field is not displayed if the ptp vlan command is not executed.

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).

Delay response interval (log mean)

Delay response message sending interval (in seconds) = 2interval (this field displays the value for the interval exponent).

Mean path delay

Mean path delay, in nanoseconds.

 

display ptp parent

Use display ptp parent to display parent node (master node) information for the PTP device.

Syntax

display ptp parent

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

The command does not display any information when any of the following conditions are met:

·     No PTP profile is specified.

·     No PTP clock node type is specified.

 

Examples

# Display parent node information for the PTP device.

<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.

 

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

The command does not display any information if you have not specified a PTP profile or a PTP clock node type.

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

 

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 for all interfaces.

Usage guidelines

The command does not display any PTP statistics if you have not specified a PTP profile or a PTP clock node type.

Examples

# Display PTP statistics on HundredGigE 1/0/1.

<Sysname> display ptp statistics interface hundredgige 1/0/1

                     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

Table 7 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.

 

display ptp time-property

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

Syntax

display ptp time-property

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

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

·     You have not specified a PTP standard or a clock node type.

·     You have specified the clock node type as e2etc or p2ptc.

·     You have executed the ptp active force-state command.

Examples

# Display PTP clock properties.

<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)

 Sync uncertain      : False

Table 8 Command output

Field

Description

Current UTC offset valid

Whether the UTC offset is valid:

·     True—Yes.

·     False—No.

Current UTC offset

Cumulative offset (in seconds) between the Coordinated Universal Time (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.

Sync uncertain

Whether the upstream clock is not reliable:

·     True—The upstream clock is not reliable.

·     False—The upstream clock is reliable.

 

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

This command is available only after you specify a PTP profile and a PTP clock node type.

After you change the role of a PTP port, you must execute this command to activate the port role configuration.

Examples

# Activate the port role configuration.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp active force-state

Related commands

ptp force-state

ptp mode

ptp profile

ptp alarm-threshold clock-source-class

Use ptp alarm-threshold clock-source-class to set the class threshold for the clock source.

Use undo ptp alarm-threshold clock-source-class to restore the default.

Syntax

ptp alarm-threshold clock-source-class class-value

undo ptp alarm-threshold clock-source-class

Default

The class threshold for the clock source is 6.

Views

System view

Predefined user roles

network-admin

Parameters

class-value: Specifies a class threshold, in the range of 0 to 255.

Usage guidelines

Each PTP clock source has a class value. For a ToD clock source, you can set its class value by using the ptp clock-source command. The higher the value, the lower the class. When the class value of the clock source crosses the class threshold, the system outputs a log for notification.

This command is available only after you specify a PTP profile and PTP clock node type.

Only the IEEE 1588 version 2 PTP profile supports this command.

Examples

# Set the class threshold to 20 for the clock source.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp clock mode bc

[Sysname] ptp alarm-threshold clock-source-class 20

Related commands

ptp clock mode

ptp profile

ptp alarm-threshold time-offset

Use ptp alarm-threshold time-offset to set the time-offset threshold between the external reference clock and the PTP clock.

Use undo ptp alarm-threshold time-offset to restore the default.

Syntax

ptp alarm-threshold time-offset time-offset-value

undo ptp alarm-threshold time-offset

Default

The time-offset threshold between the external reference clock and the PTP clock is 500 ns.

Views

System view

Predefined user roles

network-admin

Parameters

time-offset-value: Specifies the time-offset threshold between the external reference clock and the PTP clock, in the range of 200 to 1000, in ns.

Usage guidelines

If the device uses an external ToD reference clock, it calculates the time offset between the external reference clock and the PTP clock at a pre-defined interval (not configurable). When the offset exceeds the threshold, the device outputs a log for notification.

This command is available only after you specify a PTP profile and a PTP clock node type.

Only the IEEE 1588 version 2 PTP profile supports this command.

Examples

# Set the threshold to 800 for the time offset between the external reference clock and the PTP clock.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp clock mode bc

[Sysname] ptp alarm-threshold time-offset 800

Related commands

ptp mode

ptp profile

ptp alarm-threshold time-offset-sum pk-pk

Use ptp alarm-threshold time-offset-sum pk-pk to set the time-offset-sum peak-to-peak threshold.

Use undo ptp alarm-threshold time-offset-sum pk-pk to restore the default.

Syntax

ptp alarm-threshold time-offset-sum pk-pk threshold-value

undo ptp alarm-threshold time-offset-sum pk-pk

Default

The time-offset-sum peak-to-peak threshold is 500 ns.

Views

User view

Predefined user roles

network-admin

Parameters

threshold-value: Sets the time-offset-sum peak-to-peak threshold in the range of 0 to 2000, in ns.

Usage guidelines

This command is available only after you specify a PTP profile and PTP clock node type.

Only the IEEE 1588 version 2 PTP profile supports this command.

The PTP module calculates the time-offset-sum peak-to-peak value at specific intervals and compares the value with the threshold configured by this command. If the value is larger than the threshold, the system outputs a log for notification.

Examples

# Set the time-offset-sum peak-to-peak threshold to 1500 ns.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[Sysname] ptp alarm-threshold time-offset-sum pk-pk 1500

Related commands

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

When the PTP profile is IEEE 1588 version 2, the value of the interval argument is 1 and the announce message sending interval is 2 (21) seconds.

When the PTP profile is IEEE 802.1AS, the value of the interval argument is 0 and the announce message sending interval is 1 (20) second.

Views

Layer 2 Ethernet interface view

Layer 3 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 varies by PTP profile:

·     IEEE 1588 version 2: 0 to 4.

·     IEEE 802.1AS: 0 to 6.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Set the announce message sending interval to 4 (22) seconds on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp announce-interval 2

Related commands

ptp mode

ptp profile

ptp announce-timeout

Use ptp announce-timeout to set a timeout multiplier for receiving announce messages.

Use undo ptp announce-timeout to restore the default.

Syntax

ptp announce-timeout multiple-value

undo ptp announce-timeout

Default

The timeout multiplier for receiving announce messages is 3.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

A master node sends announce messages to the member nodes at the specified interval. If a member node does not receive any announce message from the master node after the timeout expires, it determines that the master node is invalid. The timeout = timeout multiplier × interval at which the master node sends announce messages.

This command is available only after you specify a PTP profile and a PTP clock node type.

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 receiving announce messages to 5 on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp announce-timeout 5

Related commands

ptp announce-interval

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

Layer 2 Ethernet interface view

Layer 3 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

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Set the asymmetric delay correction time to 100 nanoseconds on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp asymmetry-correction plus 100

Related commands

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 { one-step | two-step }

undo ptp clock-step

Default

Two-step mode is used for carrying timestamps.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

one-step: Specifies the single-step mode.

two-step: Specifies the two-step mode.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

If you specify the PTP profile as IEEE 802.1AS, only the two-step mode is supported.

Examples

# Specify the two-step timestamp carrying mode on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp clock-step two-step

Related commands

ptp mode

ptp profile

ptp delay-mechanism

Use ptp delay-mechanism to specify a PTP delay measurement mechanism.

Use undo ptp delay-mechanism to restore the default.

Syntax

ptp delay-mechanism { e2e | p2p }}

undo ptp delay-mechanism

Default

When the PTP profile is IEEE 1588 version 2, the request-response delay measurement mechanism applies.

When the PTP profile is IEEE 802.1AS, the peer delay measurement mechanism applies.

Views

Layer 2 Ethernet interface view

Layer 3 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 for BCs and OCs.

The delay measurement mechanism is Request_Response for E2ETCs and E2ETC+OCs and Peer Delay for P2PTCs and P2PTC+OCs. You cannot change the delay measurement mechanism for these clock nodes.

The IEEE 802.1AS PTP profile supports only the peer delay measurement mechanism and does not support this command.

Examples

# Specify the OC clock type. On HundredGigE 1/0/1, specify the request-response delay measurement mechanism (e2e).

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp delay-mechanism e2e

Related commands

ptp mode

ptp profile

ptp destination-mac

Use ptp destination-mac to configure the destination MAC address for PTP 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.

The destination MAC address for peer delay messages is 0180-C200-000E.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

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

IEEE 802.3/Ethernet-encapsulated PTP messages can be sent through multicast (default) or unicast. In multicast mode, the destination MAC address is 0180-C200-000E or 011B-1900-0000 for non-Pdelay messages and 0180-C200-000E for Pdelay messages. Non-Pdelay messages include delay_Req, delay_Resp, delay_Resp_Follow_Up, Announce, Sync, and FollowUp messages. Pdelay messages include Pdelay_Req, Pdelay_Resp, and Pdelay_Resp_Follow_Up messages.

If a clock node uses the unicast mode, you must configure any unicast MAC address on the uplink node of this clock node as the destination MAC address for PTP messages.

Examples

# Set the destination MAC address for non-peer delay messages to 0180-C200-000E on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp destination-mac 0180-c200-000e

Related commands

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

When the PTP profile is IEEE 1588 version 2 or IEEE 802.1AS, the device is in PTP domain 0.

Views

System view

Predefined user roles

network-admin

Parameters

domain-number: Specifies a PTP domain by its number in the range of 0 to 255.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Configure the PTP domain number to use for the device as 2.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp domain 2

Related commands

ptp mode

ptp profile

ptp dscp

Use ptp dscp to set a DSCP value for PTP messages transmitted over IPv4 UDP.

Use undo ptp dscp to restore the default.

Syntax

ptp dscp dscp

undo ptp dscp

Default

The DSCP value is 56 for PTP messages transmitted over IPv4 UDP.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

dscp: Sets a DSCP value in the range of 0 to 63 for PTP messages.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type. The IEEE 802.1AS PTP profile does not support this command.

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

Examples

# Set the DSCP value to 63 for PTP messages transmitted over IPv4 UDP on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp transport-protocol udp

[Sysname-HundredGigE1/0/1] ptp dscp 63

Related commands

ptp mode

ptp profile

ptp transport-protocol

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

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

On an OC clock node, you can enable PTP only on one port.

As a best practice, enable PTP on an interface after you configure PTP parameters.

To enable PTP on a Layer 2 Ethernet interface, make sure the VLAN interface for the VLAN to which the Layer 2 interface belongs is not associated with any VPN instance (the ip binding command not configured on the VLAN interface).

To enable PTP on a Layer 3 Ethernet interface that has been assigned to a VPN instance, you must specify this VPN instance in the ptp source ip-address vpn-instance vpn-instance-name command if PTP messages are to be transmitted in multicast mode over IPv4 UDP.

Examples

# Specify the OC clock node type and enable PTP on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp enable

# Specify the E2ETC clock node type, and enable PTP on HundredGigE 1/0/1 and HundredGigE 1/0/2.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode e2etc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp enable

[Sysname-HundredGigE1/0/1] interface hundredgige 1/0/2

[Sysname-HundredGigE1/0/2] ptp enable

Related commands

ptp mode

ptp profile

ptp source

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 by the BMC algorithm.

Views

Layer 2 Ethernet interface view

Layer 3 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

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 roles for each of them by using this command. As a best practice, enable automatic negotiation of PTP port roles based on the BMC algorithm.

This command is available only after you specify a PTP profile and a PTP clock node type.

You can configure only one subordinate port for a device.

After you change the role of a PTP port, you must execute the ptp active force-state command to activate the port role configuration.

Examples

# Specify the OC clock node type and configure HundredGigE 1/0/1 as a subordinate port.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] 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

When the PTP profile is IEEE 1588 version 2, the value of the interval argument is 0 and the minimum interval for sending delay request messages is 1 (20) second.

Views

Layer 2 Ethernet interface view

Layer 3 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.

This command is available only after you specify a PTP profile and a PTP clock node type.

The IEEE 802.1AS PTP profile does not support this command.

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 value on a member clock, 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 HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp min-delayreq-interval 2

Related commands

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 for the device.

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

CAUTION:

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

 

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

When the PTP profile is IEEE 802.1AS, you cannot specify the E2ETC or E2ETC+OC clock node type.

You can specify only one clock node type for a device.

Changing or removing the clock node type will restore the default settings of the PTP profile.

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 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 communication issues.

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

Examples

# Disable PTP path tracing.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[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 argument value is 0 and the interval for sending peer delay request messages is 1 (20) second.

Views

Layer 2 Ethernet interface view

Layer 3 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 –4 to 6. If the PTP profile is IEEE 1588 version 2, the value range for the interval argument is 0 to 5.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Set the interval to 4 (22) seconds for sending peer delay request messages on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp pdelay-req-interval 2

Related commands

ptp mode

ptp profile

ptp port-mode

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

Use undo ptp port-mode to restore the default.

Syntax

ptp port-mode oc

undo ptp port-mode

Default

All interfaces on an E2ETC+OC or a P2PTC+OC clock node is TC type.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

oc: Specifies the OC interface type.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type. Only E2ETC+OC and P2PTC+OC clock nodes support this command.

Examples

# Specify the P2PTC+OC clock node type for the device. Configure the interface type for HundredGigE 1/0/1 as OC.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode p2ptc-oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp port-mode oc

Related commands

ptp mode

ptp profile

ptp priority clock-source

Use ptp priority clock-source to configure the priority for a clock source.

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

Syntax

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

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

Default

When the PTP profile is IEEE 1588 version 2, the priority 1 and priority 2 values are both 128.

When the PTP profile is IEEE 802.1AS, the priority 1 value is 246 and the priority 2 value is 248.

Views

System view

Predefined user roles

network-admin

Parameters

local: Specifies the local clock.

priority1 priority1: Specifies priority 1 for the clock. The value is in the range of 0 to 255 for the IEEE 1588 version 2 and IEEE 802.1AS PTP profiles.

priority2 priority2: Specifies priority 2 for the clock. The value is in the range of 0 to 255 for the IEEE 1588 version 2 and IEEE 802.1AS PTP profiles. A numerically smaller value has higher priority.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Set priority 1 to 10 for the local clock.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp priority clock-source local priority1 10

Related commands

ptp mode

ptp profile

ptp profile

Use ptp profile to specify a PTP profile.

Use undo ptp profile to restore the default.

Syntax

ptp profile { 1588v2 | 8021as }

undo ptp profile

Default

No PTP profile is specified for a device.

Views

System view

Predefined user roles

network-admin

Parameters

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

8021as: Specifies the IEEE 802.1AS PTP profile.

Usage guidelines

You must first specify a PTP profile before configuring PTP commands.

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

This command is applicable only to OCs and is available only after you specify a PTP profile and a PTP clock node type.

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.

Examples

# Specify the clock node type as OC 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 slave-only

Related commands

ptp force-state

ptp mode

ptp profile

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.

Syntax

ptp source ip-address [ vpn-instance vpn-instance-name ]

undo ptp source ip-address [ vpn-instance vpn-instance-name ]

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.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance used for communication between the local device and the peer device. The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. If the peer device belongs to the public network, do not specify this option.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock type. The IEEE 802.1AS PTP profile does not support this command.

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

If a PTP-enabled Layer 3 Ethernet interface has been assigned to a VPN instance, you must specify the VPN instance in the ptp source ip-address vpn-instance vpn-instance-name command.

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp source 3.5.1.5

Related commands

ptp mode

ptp profile

ptp transport-protocol

ptp sync-uncertain enable

Use ptp sync-uncertain enable to enable the device to notify the downstream nodes of its time synchronization state.

Use undo ptp sync-uncertain enable to disable the device from notifying the downstream nodes of its time synchronization state.

Syntax

ptp sync-uncertain enable

undo ptp sync-uncertain enable

Default

The device does not notify the downstream nodes of its time synchronization state.

Views

System view

Predefined user roles

network-admin

Usage guidelines

By default, the device transfers only the locked and unlocked status of the upstream node to the downstream nodes, and does not transfer its locked or unlocked status to the downstream nodes.

After this command is configured, the device notifies the downstream nodes of its locked and unlocked status through the synchronizationUncertain flag in the announce messages. The downstream nodes do not synchronize to the device when they receive information that the device time is unlocked and synchronize to the device when they receive information that the device time is locked.

This command is available only after you specify a PTP profile and a PTP clock node type.The PTP profile must be IEEE 1588 version 2.

Examples

# Enable the device to notify the downstream nodes of its time synchronization state.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[Sysname] ptp sync-uncertain enable

Related commands

ptp mode

ptp profile

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

When the PTP profile is IEEE 1588 version 2, the interval argument value is 0 and the interval for sending Sync messages is 1 (20) second.

When the PTP profile is IEEE 802.1AS, the interval argument value is –3 and the interval for sending Sync messages is 1/8 (2-3) seconds.

Views

Layer 2 Ethernet interface view

Layer 3 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. The value range for the interval argument is -4 to 6  for the IEEE 802.1AS PTP profile, –1 to 1 for the IEEE 1588 version 2 PTP profile.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

A master node sends Sync messages to the member nodes at the interval set on its interfaces.

Examples

# Set the Sync message sending interval to 2 (21) seconds on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp syn-interval 1

Related commands

ptp mode

ptp profile

ptp transport-protocol

Use ptp transport-protocol to specify IPv4 UDP transport of PTP messages.

Use undo ptp transport-protocol to restore the default.

Syntax

ptp transport-protocol udp

undo ptp transport-protocol

Default

The IEEE 1588 version 2 and IEEE 802.1AS PTP profiles transport PTP messages over IEEE 802.3/Ethernet.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

udp: Specifies IPv4 UDP transport of PTP messages.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock type.  The IEEE 802.1AS PTP profile does not support this command.this command.

Examples

# Specify IPv4 UDP transport of PTP messages on HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp transport-protocol udp

Related commands

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.

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

Layer 3 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

This command is available only after you specify a PTP profile and a PTP clock node type. The IEEE 802.1AS PTP profile does not support this command.

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

Examples

# Configure 10.10.10.2 as the destination address for unicast PTP messages transmitted over IPv4 UDP.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp transport-protocol udp

[Sysname-HundredGigE1/0/1] ptp unicast-destination 10.10.10.2

Related commands

ptp mode

ptp profile

ptp transport-protocol

ptp utc

Use ptp utc to set the correction date for the Coordinated Universal Time (UTC).

Use undo ptp utc to remove the correction date configured for the UTC.

Syntax

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

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

Default

No correction date is configured for the UTC.

Views

System view

Predefined user roles

network-admin

Parameters

leap59-date: Adjusts the UTC at the last minute (23:59) of the specified date so that the UTC is one second slower than the TAI.

leap61-date: Adjusts the UTC at the last minute (23:59) of the specified date so that the UTC is one second faster than the TAI.

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

This command is available only after you specify a PTP profile and a PTP clock node type.

Specify either the leap59-date or leap61-date keyword in this command. If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Assume the current date is August 8, 2010. Specify the clock node type as BC for the device. Adjust the UTC at the last minute of December 31, 2010 so that the UTC is one second slower than the TAI.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode bc

[Sysname] ptp utc leap59-date 2010/12/31

Related commands

ptp mode

ptp profile

ptp utc offset

Use ptp utc offset to set the cumulative offset between the UTC and International Atomic Time (TAI).

Use undo ptp utc offset to restore the default.

Syntax

ptp utc offset utc-offset

undo ptp utc offset

Default

The cumulative offset between the UTC and TAI is 0 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

utc-offset: Sets the cumulative offset between the UTC and TAI, in seconds. The value is in the range of 0 to 999.

Usage guidelines

An offset exists between UTC and TAI. The device displays the UTC time. However, PTP uses TAI for time synchronization. For the device to synchronize correct time to other clock nodes in the PTP domain when its local clock is selected as the GM, configure this command to correct the offset between UTC and TAI.

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Set the cumulative offset to 33 seconds between the UTC and TAI.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp utc offset 33

Related commands

ptp mode

ptp profile

ptp vlan

Use ptp vlan to specify a VLAN tag for PTP messages.

Use undo ptp vlan to restore the default.

Syntax

ptp vlan vlan-id [ dot1p dot1p-value ]

undo ptp vlan [ dot1p ]

Default

PTP messages do not have a VLAN tag.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

vlan vlan-id: Specifies a VLAN by its ID. The value range for the vlan-id argument is 1 to 4094.

dot1p dot1p-value: Specifies an 802.1p precedence for PTP messages, in the range of 0 to 7. The default 802.1p precedence is 7 (the highest).

Usage guidelines

This command is available only after you specify a PTP profile and a PTP clock node type.

Examples

# Specify VLAN 2 and set the 802.1p precedence to 6 for PTP messages.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] ptp vlan 2 dot1p 6

Related commands

ptp mode

ptp profile

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 HundredGigE 1/0/1.

<Sysname> reset ptp statistics interface hundredgige 1/0/1

Related commands

display ptp statistics

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