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14-PTP commands

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PTP commands

PTP time synchronization is not supported between IRF member devices.

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.

Examples

# Display PTP clock information.

<Sysname> display ptp clock

PTP profile : IEEE 1588 Version 2

PTP mode : BC

Slave only : No

Clock ID : 000FE2-FFFE-FF0000

Clock type : Local

Clock domain : 0

Number of PTP ports : 2

Priority1 : 128

Priority2 : 128

Clock quality :

Class : 248

Accuracy : 254

Offset (log variance) : 65535

Offset from master : 50 (ns)

Mean path delay : 2791 (ns)

Steps removed : 2

Local clock time : Sun Jan 15 20:57:29 2011

Table 1 Command output

Field	Description
PTP profile	PTP standard: IEEE 1588 version 2. SMPTE ST 2059-2.
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.
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 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.

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 mode 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

GE1/0/1 Mar 11 03:14:54 2012 0,74 0.999999973

GE1/0/1 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 or SMPTE ST 2059-2.

· You have specified a PTP mode for the device.

· The device has a subordinate port or a port in uncalibrated 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

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

GE1/0/1 000FE2-FFFE-FF0000 0 128 248 254 65535 0 Yes

GE1/0/2 000FE2-FFFE-FF0001 0 128 248 254 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 an interface.

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 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 interface or all 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 interfaces.

<Sysname> display ptp interface brief

Name State Delay mechanism Clock step Asymmetry correction

GE1/0/1 Slave E2E Two 0

GE1/0/2 Passive E2E Two 0

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

<Sysname> display ptp interface gigabitethernet 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 : Disabled

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) : 2

Delay request interval (log mean) : 2

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.
DSCP priority	DSCP value for PTP messages that are transmitted over UDP (IPv4). 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) = 2internal (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) = 2internal (this field displays the value for the interval exponent).
Delay request interval (log mean)	Minimum delay request message sending interval (in seconds) = 2internal (this field displays the value for the interval exponent).
Peer delay request interval (log mean)	Peer delay request message sending interval (in seconds) = 2internal (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 in any of the following circumstances:

· You have not specified a PTP profile or a PTP mode for the device.

· You have specified the clock node type as TC.

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

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 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 mode.

Examples

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

<Sysname> display ptp statistics interface gigabitethernet 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 6 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)

Table 7 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.

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 mode.

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 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

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

For the SMPTE ST 2059-2 PTP profile, the interval argument value is –2 and the announce message sending interval is 1/4 (2-2) second.

Views

Layer 2 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 6; When the PTP profile is SMPTE ST 2059-2, the value range for the interval argument is –3 to 1.

Usage guidelines

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

The master node uses the value configured on its interface as the interval for sending announce messages.

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp announce-interval 2

Related commands

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

Layer 2 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.

· IEEE 1588 version 2, SMPTE ST 2059-2—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 GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] 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

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 mode.

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] 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

The two-step mode is used for carrying timestamps.

Views

Layer 2 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

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

GigabitEthernet 1/0/1 to GigabitEthernet 1/0/16 on the IE4320-28P switch support only the two-step timestamp-carrying mode. GigabitEthernet 1/0/17 to GigabitEthernet 1/0/24 on the IE4320-28P switch support both the single-step and two-step timestamp-carrying modes.

All interfaces on the IE4300-28P-M switch support both the single-step and two-step timestamp-carrying modes.

Examples

# Configure the two-step timestamp-carrying mode on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp clock-step two-step

Related commands

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 mechanism applies.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

e2e: Specifies the request-response mechanism used by E2ETC.

p2p: Specifies the peer delay mechanism used by P2PTC.

Usage guidelines

This command is applicable only to BCs and OCs.

GigabitEthernet1/0/1 to GigabitEthernet1/0/16 on the IE4320-28P switch do not support the peer delay measurement mechanism.

Examples

# Specify the OC clock node type. Specify the request-response delay mechanism (e2e) on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp delay-mechanism e2e

Related commands

ptp mode

ptp profile

ptp destination-mac

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

Layer 2 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

This command is available only after you specify a PTP profile and a PTP mode. The SMPTE ST 2059-2 profile does not support this command.

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

# Configure the destination MAC address for non-peer delay messages as 0180-C200-000E on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] 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

The PTP domain depends on the PTP profile.

· When the PTP profile is IEEE 1588 version 2, the device belongs to PTP domain 0.

· When the PTP profile is SMPTE ST 2059-2, the device belongs to PTP domain 127.

Views

System view

Predefined user roles

network-admin

Parameters

domain-number: Specifies a PTP domain by its domain number. The value range for the domain-number argument is 0 to 255; When the PTP profile is SMPTE ST 2059-2, the value range for the domain-number argument is 0 to 127.

Usage guidelines

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

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 source

ptp dscp

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

Use undo ptp dscp to restore the default.

Syntax

ptp dscp dscp

undo ptp dscp

Default

The DSCP value is 56 for PTP messages that are transmitted over UDP (IPv4).

Views

Layer 2 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 mode.

This command takes effect only if PTP messages are transmitted over UDP (IPv4).

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp transport-protocol udp

[Sysname-GigabitEthernet1/0/1] 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

Predefined user roles

network-admin

Usage guidelines

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

An OC can have only one PTP port.

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

For PTP to take effect on a Layer 2 Ethernet interface, enable PTP on that interface and make sure the VLAN to which that interface belongs is not bound to any VPN instance (the ip binding command is not configured on that interface).

After PTP is enabled on an interface, the system takes the EtherType field value of 0x88b5 as the PTP timestamp flag. Ethernet frames with the EtherType field value of 0x88b5 will be sent to CPU directly for processing and might fail to be forwarded.

Examples

# Configure the OC clock node type, and enable PTP on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp enable

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode e2etc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp enable

[Sysname-GigabitEthernet1/0/1] interface gigabitethernet 1/0/2

[Sysname-GigabitEthernet1/0/2] ptp enable

Related commands

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 by BMC.

Views

Layer 2 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.

Examples

# Configure the OC clock node type. Specify the PTP port GigabitEthernet 1/0/1 as a subordinate port.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] 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

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

Views

Layer 2 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. When the PTP profile is IEEE 1588 version 2, the value range for the interval argument is –4 to 6. When the PTP profile is SMPTE ST 2059-2, the value range for the interval argument is –5 to 4.

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.

When the PTP profile is SMPTE ST 2059-2, set the interval argument to a value in the range of ptp syn-interval interval to ptp syn-interval interval plus 5 as a best practice.

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] 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.

Views

System view

Predefined user roles

network-admin

Parameters

bc: Specifies the clock node type as boundary clock (BC).

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

e2etc-oc: Specifies the clock node type as E2ETC+OC.

oc: Specifies the clock node type as ordinary clock (OC).

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

p2ptc-oc: Specifies the clock node type as P2PTC+OC.

Usage guidelines

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 SMPTE ST 2059-2, you cannot specify the E2ETC+OC or P2PTC+OC clock node type.

GigabitEthernet 1/0/1 to GigabitEthernet 1/0/16 on the IE4320-28P switch do not support the P2PTC or P2PTC+OC clock node type.

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 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

Layer 2 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. When the PTP profile is IEEE 1588 version 2, the value range for the interval argument is 0 to 5. When the PTP profile is SMPTE ST 2059-2, the value range for the interval argument is –5 to 4.

Usage guidelines

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

When the PTP profile is SMPTE ST 2059-2, set the interval argument to a value in the range of ptp syn-interval interval to ptp syn-interval interval plus 5 as a best practice.

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp pdelay-req-interval 2

Related commands

ptp mode

ptp profile

ptp syn-interval

ptp port-mode

Use ptp port-mode to configure the port type as OC 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

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

This command is applicable only to E2ETC+OC and P2PTC+OC clocks and is available only after you specify a PTP profile and a PTP mode.

The SMPTE ST 2059-2 PTP profiles does not support this command.

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode p2ptc-oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp port-mode oc

Related commands

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 values of priority 1 and priority 2 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

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

Examples

# Configure priority 1 as 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

Use ptp profile to specify the IEEE 1588 version 2 PTP profile for the device.

Use undo ptp profile to restore the default.

Syntax

ptp profile { 1588v2 | st2059-2 }

undo ptp profile

Default

No PTP profile is configured and PTP is not running on the device.

Views

System view

Predefined user roles

network-admin

Parameters

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

st2059-2: Specifies the SMPTE ST 2059-2 PTP profile.

Usage guidelines

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

If you change or remove a PTP profile, PTP functions do not operate and all the configurations for that PTP profile will be removed.

Examples

# Configure the PTP profile as IEEE 1588 version 2.

<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 mode.

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 message transmission over UDP (IPv4).

Use undo ptp source to remove the specified source IP address for multicast PTP message transmission over UDP (IPv4).

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 message transmission over UDP (IPv4).

Views

System view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the source IP address for multicast PTP message transmission over UDP (IPv4).

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 mode.

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.

<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 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 SMPTE ST 2059-2, 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

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. When the PTP profile is IEEE 1588 version 2, the value range for the interval argument is -1 to 1. When the PTP profile is SMPTE ST 2059-2, the value range for the interval argument is –5 to –1.

Usage guidelines

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

Examples

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

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp syn-interval 1

Related commands

ptp mode

ptp profile

ptp transport-protocol

Use ptp transport-protocol to configure UDP transport protocol over IPv4 for PTP messages.

Use undo ptp transport-protocol to restore the default.

Syntax

ptp transport-protocol udp

undo ptp transport-protocol

Default

PTP messages are transported through IEEE 802.3 and Ethernet.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

udp: Specifies the UDP over IPv4 transmit protocol for PTP messages.

Usage guidelines

This command is available only after you specify a PTP profile and a PTP mode. This command is not available for the SMPTE ST 2059-2 PTP profile.

Examples

# Configure UDP transport protocol over IPv4 for PTP messages on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ptp transport-protocol udp

Related commands

ptp mode

ptp profile

ptp utc

Use ptp utc to set the correction date for the 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 mode.

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.

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 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 utc-offset argument is in the range of 0 to 999.

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.

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

# Set the cumulative offset to 37 seconds between the UTC and TAI.

<Sysname> system-view

[Sysname] ptp profile 1588v2

[Sysname] ptp mode oc

[Sysname] ptp utc offset 37

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 in the range of 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 mode.

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 gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] 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 GigabitEthernet 1/0/1.

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

Related commands

display ptp statistics

11-NMM Command Reference

PTP commands

ptp destination-mac

ptp source

reset ptp statistics

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