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- H3C S12500R Ethernet Switch Router Series Config Examples-Release 36xx-6W100
- 01-Login Management Configuration Examples
- 02-RBAC Configuration Examples
- 03-Software Upgrade Examples
- 04-Ethernet Link Aggregation Configuration Examples
- 05-Port Isolation Configuration Examples
- 06-Spanning Tree Configuration Examples
- 07-VLAN Configuration Examples
- 08-VLAN Tagging Configuration Examples
- 09-DHCP Snooping Configuration Examples
- 10-Cross-Subnet Dynamic IP Address Allocation Configuration Examples
- 11-IPv6 over IPv4 Tunneling with OSPFv3 Configuration Examples
- 12-GRE Tunnel Configuration Examples
- 13-GRE with OSPF Configuration Examples
- 14-OSPF Configuration Examples
- 15-IS-IS Configuration Examples
- 16-BGP Configuration Examples
- 17-Policy-Based Routing Configuration Examples
- 18-OSPFv3 Configuration Examples
- 19-IPv6 IS-IS Configuration Examples
- 20-Routing Policy Configuration Examples
- 21-IGMP Snooping Configuration Examples
- 22-IGMP Configuration Examples
- 23-MLD Snooping Configuration Examples
- 24-Basic MPLS Configuration Examples
- 25-MPLS L3VPN Configuration Examples
- 26-ACL Configuration Examples
- 27-Control Plane-Based QoS Policy Configuration Examples
- 28-Traffic Policing Configuration Examples
- 29-GTS and Rate Limiting Configuration Examples
- 30-Priority Mapping and Queue Scheduling Configuration Examples
- 31-Traffic Filtering Configuration Examples
- 32-AAA Configuration Examples
- 33-SSH Configuration Examples
- 34-IP Source Guard Configuration Examples
- 35-Ethernet OAM Configuration Examples
- 36-CFD Configuration Examples
- 37-DLDP Configuration Examples
- 38-VRRP Configuration Examples
- 39-BFD Configuration Examples
- 40-NTP Configuration Examples
- 41-SNMP Configuration Examples
- 42-NQA Configuration Examples
- 43-Mirroring Configuration Examples
- 44-sFlow Configuration Examples
- 45-OpenFlow Configuration Examples
- 46-MAC Address Table Configuration Examples
- 47-Static Multicast MAC Address Entry Configuration Examples
- 48-IP Unnumbered Configuration Examples
- 49-Congestion Avoidance and Queue Scheduling Configuration Examples
- 50-Attack Protection Configuration Examples
- 51-Smart Link Configuration Examples
- 52-RRPP Configuration Examples
- 53-BGP Route Selection Configuration Examples
- 54-IS-IS Route Summarization Configuration Examples
- 55-MPLS OAM Configuration Examples
- 56-MPLS TE Configuration Examples
- 57-VXLAN Configuration Examples
- 58-NetStream Configuration Examples
- 59-EVPN-DCI over an MPLS L3VPN Network Configuration Examples
- 60-PTP Configuration Examples
- 61-S-MLAG Configuration Examples
- 62-MPLS SR Configuration Examples
- 63-Puppet Configuration Examples
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 60-PTP Configuration Examples | 167.70 KB |
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H3C S12500R Switch Router Series |
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PTP Configuration Examples |
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Copyright © 2021 New H3C Technologies Co., Ltd. All rights reserved.
No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New H3C Technologies Co., Ltd.
Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are the property of their respective owners.
The information in this document is subject to change without notice.
Contents
Example: Configuring Layer 2 IEEE 1588v2 PTP
Example: Configuring Layer 3 IEEE 1588v2 PTP in multicast mode
Example: Configuring Layer 3 IEEE 1588v2 PTP in unicast mode
Example: Configuring IEEE 802.1AS PTP
Introduction
This document provides PTP configuration examples.
Prerequisites
This document is not restricted to specific software or hardware versions.
The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.
This document assumes that you have basic knowledge of PTP.
Example: Configuring Layer 2 IEEE 1588v2 PTP
Network configuration
As shown in Figure 1, a PTP domain contains Device A, Device B, and Device C. Configure Layer 2 IEEE 1588v2 PTP as follows for time synchronization:
· Specify the IEEE 1588v2 PTP profile for the devices.
· Specify the OC clock node type for Device A and Device C, and E2ETC clock node type for Device B. These clock nodes elect a GM through BMC based on their respective default GM attributes.
Software version used
This configuration example was created and verified on R3606.
Restrictions and guidelines
By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface.
Procedures
Configuring Device A
# Specify the IEEE 1588v2 PTP profile.
<DeviceA> system-view
[DeviceA] ptp profile 1588v2
# Specify the OC clock node type.
[DeviceA] ptp mode oc
# Specify PTP for obtaining the time on the default MDC.
[DeviceA] clock protocol ptp mdc 1
# Enable PTP on HundredGigE 1/0/1.
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] ptp enable
[DeviceA-HundredGigE1/0/1] quit
Configuring Device B
# Specify the IEEE 1588v2 PTP profile.
<DeviceB> system-view
[DeviceB] ptp profile 1588v2
# Specify the E2ETC clock node type.
[DeviceB] ptp mode e2etc
# Specify PTP for obtaining the time on the default MDC.
[DeviceB] clock protocol ptp mdc 1
# Enable PTP on HundredGigE 1/0/1.
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] ptp enable
[DeviceB-HundredGigE1/0/1] quit
# Enable PTP on HundredGigE 1/0/2.
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] ptp enable
[DeviceB-HundredGigE1/0/2] quit
Configuring Device C
# Specify the IEEE 1588v2 PTP profile.
<DeviceC> system-view
[DeviceC] ptp profile 1588v2
# Specify the OC clock node type.
[DeviceC] ptp mode oc
# Specify PTP for obtaining the time on the default MDC.
[DeviceC] clock protocol ptp mdc 1
# Enable PTP on HundredGigE 1/0/1.
[DeviceC] interface hundredgige 1/0/1
[DeviceC-HundredGigE1/0/1] ptp enable
[DeviceC-HundredGigE1/0/1] quit
Verifying the configuration
When the network topology is stable, perform the following tasks to verify the PTP configuration:
· Use the display ptp clock command to display PTP clock information.
· Use the display ptp interface brief command to display brief information about PTP interfaces.
# Display PTP clock information on Device A.
[DeviceA] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0000
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device A.
[DeviceA] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Master E2E Two 0
# Display PTP clock information on Device B.
[DeviceB] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : E2ETC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0001
Clock type : Local
Clock domain : 0
Number of PTP ports : 2
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : N/A
Mean path delay : N/A
Steps removed : N/A
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device B.
[DeviceB] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 N/A E2E Two 0
HGE1/0/2 N/A E2E Two 0
# Display PTP clock information on Device C.
[DeviceC] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0002
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2019
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device C.
[DeviceC] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Slave E2E Two 0
The command outputs show that Device A is elected as the GM and HundredGigE 1/0/1 on Device A is the master port.
Configuration files
· Device A and Device C:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode oc
#
interface hundredgige 1/0/1
ptp enable
#
· Device B:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode e2etc
#
interface hundredgige 1/0/1
ptp enable
#
interface hundredgige 1/0/2
ptp enable
#
Example: Configuring Layer 3 IEEE 1588v2 PTP in multicast mode
Network configuration
As shown in Figure 2, a PTP domain contains Device A, Device B, and Device C. Configure Layer 3 IEEE 1588v2 PTP in multicast mode as follows for time synchronization:
· Specify the IEEE 1588v2 PTP profile for the devices.
· Specify the OC clock node type for Device A and Device C, and the P2PTC clock node type for Device B. These clock nodes elect a GM through BMC based on their respective default GM attributes.
· Configure the multicast PTP transport mode and IPv4 UDP transport protocol for the devices.
· Configure the peer delay measurement mechanism (p2p) for Device A and Device C.
Software version used
This configuration example was created and verified on R3606.
Restrictions and guidelines
By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface.
Procedures
Configuring Device A
# Specify the IEEE 1588v2 PTP profile.
<DeviceA> system-view
[DeviceA] ptp profile 1588v2
# Specify the OC clock node type.
[DeviceA] ptp mode oc
# Configure the source IP address for multicast PTP message transmission over IPv4 UDP.
[DeviceA] ptp source 10.10.10.1
# Specify PTP for obtaining the time on the default MDC.
[DeviceA] clock protocol ptp mdc 1
# On HundredGigE 1/0/1, specify the IPv4 UDP transport protocol and the peer delay measurement mechanism (p2p), and enable PTP.
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] ptp transport-protocol udp
[DeviceA-HundredGigE1/0/1] ptp delay-mechanism p2p
[DeviceA-HundredGigE1/0/1] ptp enable
[DeviceA-HundredGigE1/0/1] quit
Configuring Device B
# Specify the IEEE 1588v2 PTP profile.
<DeviceB> system-view
[DeviceB] ptp profile 1588v2
# Specify the P2PTC clock node type.
[DeviceB] ptp mode p2ptc
# Configure the source IP address for multicast PTP message transmission over IPv4 UDP.
[DeviceB] ptp source 10.10.2.1
# Specify PTP for obtaining the time on the default MDC.
[DeviceB] clock protocol ptp mdc 1
# On HundredGigE 1/0/1, specify the IPv4 UDP transport protocol and enable PTP.
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] ptp transport-protocol udp
[DeviceB-HundredGigE1/0/1] ptp enable
[DeviceB-HundredGigE1/0/1] quit
# On HundredGigE 1/0/2, specify the IPv4 UDP transport protocol and enable PTP.
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] ptp transport-protocol udp
[DeviceB-HundredGigE1/0/2] ptp enable
[DeviceB-HundredGigE1/0/2] quit
Configuring Device C
# Specify the IEEE 1588v2 PTP profile.
<DeviceC> system-view
[DeviceC] ptp profile 1588v2
# Specify the OC clock node type.
[DeviceC] ptp mode oc
# Configure the source IP address for multicast PTP message transmission over IPv4 UDP.
[DeviceC] ptp source 10.10.3.1
# Specify PTP for obtaining the time on the default MDC.
[DeviceC] clock protocol ptp mdc 1
# On HundredGigE 1/0/1, specify the IPv4 UDP transport protocol and the peer delay measurement mechanism (p2p), and enable PTP.
[DeviceC] interface hundredgige 1/0/1
[DeviceC-HundredGigE1/0/1] ptp transport-protocol udp
[DeviceC-HundredGigE1/0/1] ptp delay-mechanism p2p
[DeviceC-HundredGigE1/0/1] ptp enable
[DeviceC-HundredGigE1/0/1] quit
Verifying the configuration
When the network topology is stable, perform the following tasks to verify the PTP configuration:
· Use the display ptp clock command to display PTP clock information.
· Use the display ptp interface brief command to display brief information about PTP interfaces.
# Display PTP clock information on Device A.
[DeviceA] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0000
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device A.
[DeviceA] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Master P2P Two 0
# Display PTP clock information on Device B.
[DeviceB] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : P2PTC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0001
Clock type : Local
Clock domain : 0
Number of PTP ports : 2
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : N/A
Mean path delay : N/A
Steps removed : N/A
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device B.
[DeviceB] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 N/A P2P Two 0
HGE1/0/2 N/A P2P Two 0
# Display PTP clock information on Device C.
[DeviceC] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0002
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2019
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device C.
[DeviceC] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Slave P2P Two 0
The command outputs show that Device A is elected as the GM and HundredGigE 1/0/1 on Device A is the master port.
Configuration files
· Device A:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode oc
ptp source 10.10.10.1
#
interface hundredgige 1/0/1
ptp delay-mechanism p2p
ptp transport-protocol udp
ptp enable
#
· Device B:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode p2ptc
ptp source 10.10.10.2
#
interface hundredgige 1/0/1
ptp transport-protocol udp
ptp enable
#
interface hundredgige 1/0/2
ptp transport-protocol udp
ptp enable
#
· Device C:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode oc
ptp source 11.10.10.1
#
interface hundredgige 1/0/1
ptp delay-mechanism p2p
ptp transport-protocol udp
ptp enable
#
Example: Configuring Layer 3 IEEE 1588v2 PTP in unicast mode
Network configuration
As shown in Figure 3, a PTP domain contains Device A, Device B, and Device C. Configure Layer 3 IEEE 1588v2 PTP in unicast mode as follows for time synchronization:
· Specify the IEEE 1588v2 PTP profile for the devices.
· Specify the OC clock node type for Device A and Device C, and the E2ETC clock node type for Device B.
· Configure the unicast PTP transport mode and IPv4 UDP transport protocol for the devices.
· Configure the peer delay measurement mechanism (p2p) for Device A and Device C.
· Configure Device A to receive ToD clock signals. Configure Device C to transmit clock signals to the base station.
Prerequisites
As shown in Figure 3, assign IP addresses to the interfaces and make sure the devices can reach each other. (Details not shown.)
Software version used
This configuration example was created and verified on R3606.
Restrictions and guidelines
When you configure Layer 3 IEEE 1588v2 PTP in unicast mode, follow these restrictions and guidelines:
· The device does not provide ToD interfaces. It can be deployed as Device B or Device C but not Device A.
· By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface.
Procedures
|
|
IMPORTANT: The device does not provide ToD interfaces. It can be deployed as Device B or Device C but not Device A. |
Configuring Device A
# Specify the IEEE 1588v2 PTP profile.
<DeviceA> system-view
[DeviceA] ptp profile 1588v2
# Specify the OC clock node type.
[DeviceA] ptp mode oc
# Configure the device to receive ToD clock signals and set the delay time correction to 1000 nanoseconds.
[DeviceA] ptp tod0 input delay 1000
# Set priority 1 to 0 for the ToD clock.
[DeviceA] ptp priority clock-source tod0 priority1 0
# On HundredGigE 1/0/1, specify the IPv4 UDP transport protocol and a unicast destination IP address for PTP messages and enable PTP.
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] ptp transport-protocol udp
[DeviceA-HundredGigE1/0/1] ptp unicast-destination 10.10.10.2
[DeviceA-HundredGigE1/0/1] ptp enable
[DeviceA-HundredGigE1/0/1] quit
Configuring Device B
# Specify the IEEE 1588v2 PTP profile.
<DeviceB> system-view
[DeviceB] ptp profile 1588v2
# Specify the E2ETC clock node type.
[DeviceB] ptp mode e2etc
# Specify PTP for obtaining the time on the default MDC.
[DeviceB] clock protocol ptp mdc 1
# On HundredGigE 1/0/1, specify the IPv4 UDP transport protocol and a unicast destination IP address for PTP messages and enable PTP.
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] ptp transport-protocol udp
[DeviceB-HundredGigE1/0/1] ptp unicast-destination 10.10.10.1
[DeviceB-HundredGigE1/0/1] ptp enable
[DeviceB-HundredGigE1/0/1] quit
# On HundredGigE 1/0/2, specify the IPv4 UDP transport protocol and a unicast destination IP address for PTP messages and enable PTP.
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] ptp transport-protocol udp
[DeviceB-HundredGigE1/0/2] ptp unicast-destination 11.10.10.1
[DeviceB-HundredGigE1/0/2] ptp enable
[DeviceB-HundredGigE1/0/2] quit
Configuring Device C
# Specify the IEEE 1588v2 PTP profile.
<DeviceC> system-view
[DeviceC] ptp profile 1588v2
# Specify the OC clock node type.
[DeviceC] ptp mode oc
# Specify PTP for obtaining the time on the default MDC.
[DeviceC] clock protocol ptp mdc 1
# On HundredGigE 1/0/1, specify the IPv4 UDP transport protocol and a unicast destination IP address for PTP messages and enable PTP.
[DeviceC] interface hundredgige 1/0/1
[DeviceC-HundredGigE1/0/1] ptp transport-protocol udp
[DeviceC-HundredGigE1/0/1] ptp unicast-destination 11.10.10.2
[DeviceC-HundredGigE1/0/1] ptp enable
[DeviceC-HundredGigE1/0/1] quit
Verifying the configuration
When the network topology is stable, perform the following tasks to verify the PTP configuration:
· Use the display ptp clock command to display PTP clock information.
· Use the display ptp interface brief command to display brief information about PTP interfaces.
# Display PTP clock information on Device A.
[DeviceA] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0000
Clock type : ToD0
ToD direction : In
ToD delay time : 1000 (ns)
Clock domain : 0
Number of PTP ports : 1
Priority1 : 0
Priority2 : 128
Clock quality :
Class : 6
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device A.
[DeviceA] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Master E2E Two 0
# Display PTP clock information on Device B.
[DeviceB] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : E2ETC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0001
Clock type : Local
Clock domain : 0
Number of PTP ports : 2
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : N/A
Mean path delay : N/A
Steps removed : N/A
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device B.
[DeviceB] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 N/A E2E Two 0
HGE1/0/2 N/A E2E Two 0
# Display PTP clock information on Device C.
[DeviceC] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0002
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2019
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display PTP clock information on Device C.
[DeviceC] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Slave E2E Two 0
The command outputs show that Device A is elected as the GM and HundredGigE 1/0/1 on Device A is the master port.
Configuration files
· Device A:
#
ptp profile 1588v2
ptp mode oc
ptp tod0 input delay 1000
ptp priority clock-source tod0 priority1 0
#
interface hundredgige 1/0/1
ptp transport-protocol udp
ptp unicast-destination 10.10.10.2
ptp enable
#
· Device B:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode e2etc
#
interface hundredgige 1/0/1
ptp transport-protocol udp
ptp unicast-destination 10.10.10.1
ptp enable
#
interface hundredgige 1/0/1
ptp transport-protocol udp
ptp unicast-destination 11.10.10.1
ptp enable
#
· Device C:
#
clock protocol ptp mdc 1
#
ptp profile 1588v2
ptp mode oc
ptp tod0 input delay 100
#
interface hundredgige 1/0/1
ptp transport-protocol udp
ptp unicast-destination 11.10.10.2
ptp enable
#
Example: Configuring IEEE 802.1AS PTP
Network configuration
As shown in Figure 4, a PTP domain contains Device A, Device B, and Device C. Configure IEEE 802.1AS PTP as follows for time synchronization:
· Specify the IEEE 802.1AS PTP profile for the devices.
· Specify the OC clock node type for Device A and Device C, and the P2PTC clock node type for Device B. These clock nodes elect a GM through BMC based on their respective default GM attributes.
Software version used
This configuration example was created and verified on R3606.
Restrictions and guidelines
By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface.
Procedures
Configuring Device A
# Specify the IEEE 802.1AS PTP profile.
<DeviceA> system-view
[DeviceA] ptp profile 802.1AS
# Specify the OC clock node type.
[DeviceA] ptp mode oc
# Specify PTP for obtaining the time on the default MDC.
[DeviceA] clock protocol ptp mdc 1
# Enable PTP on HundredGigE 1/0/1.
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] ptp enable
[DeviceA-HundredGigE1/0/1] quit
Configuring Device B
# Specify the IEEE 802.1AS PTP profile.
<DeviceB> system-view
[DeviceB] ptp profile 802.1AS
# Specify the P2PTC clock node type.
[DeviceB] ptp mode p2ptc
# Specify PTP for obtaining the time on the default MDC.
[DeviceB] clock protocol ptp mdc 1
# Enable PTP on HundredGigE 1/0/1.
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] ptp enable
[DeviceB-HundredGigE1/0/1] quit
# Enable PTP on HundredGigE 1/0/2.
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] ptp enable
[DeviceB-HundredGigE1/0/2] quit
Configuring Device C
# Specify the IEEE 1588 802.1AS PTP profile.
<DeviceC> system-view
[DeviceC] ptp profile 802.1AS
# Specify the OC clock node type.
[DeviceC] ptp mode oc
# Specify PTP for obtaining the time on the default MDC.
[DeviceC] clock protocol ptp mdc 1
# Enable PTP on HundredGigE 1/0/1.
[DeviceC] interface hundredgige 1/0/1
[DeviceC-HundredGigE1/0/1] ptp enable
[DeviceC-HundredGigE1/0/1] quit
Verifying the configuration
When the network topology is stable, perform the following tasks to verify the PTP configuration:
· Use the display ptp clock command to display PTP clock information.
· Use the display ptp interface brief command to display brief information about PTP interfaces.
# Display PTP clock information on Device A.
[DeviceA] display ptp clock
PTP profile : IEEE 802.1AS
PTP mode : OC
Slave only : No\
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0000
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 246
Priority2 : 248
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 16640
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device A.
[DeviceA] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Master P2P Two 0
# Display PTP clock information on Device B.
[DeviceB] display ptp clock
PTP profile : IEEE 802.1AS
PTP mode : P2PTC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0001
Clock type : Local
Clock domain : 0
Number of PTP ports : 2
Priority1 : 246
Priority2 : 248
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 16640
Offset from master : N/A
Mean path delay : N/A
Steps removed : N/A
Local clock time : Sun Jan 15 20:57:29 2011
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device B.
[DeviceB] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 N/A P2P Two 0
HGE1/0/2 N/A P2P Two 0
# Display PTP clock information on Device C.
[DeviceC] display ptp clock
PTP profile : IEEE 802.1AS
PTP mode : OC
Slave only : No
Sync uncertain : Disabled
Clock state : Disabled
Clock ID : 000FE2-FFFE-FF0002
Clock type : Local
Clock domain : 0
Number of PTP ports : 1
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 32
Offset (log variance) : 65535
Offset from master : 0 (ns)
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2019
Clock source info:
Clock Pri1 Pri2 Accuracy Class TimeSrc Direction In-Status Offset(log variance)
-------------------------------------------------------------------
Local 128 128 32 248 160 N/A N/A 65535
ToD0 128 128 32 6 32 N/A Inactive 65535
ToD1 128 128 32 6 32 N/A Inactive 65535
# Display brief information about PTP interfaces on Device C.
[DeviceC] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
HGE1/0/1 Slave P2P Two 0
The command outputs show that Device A is elected as the GM and HundredGigE 1/0/1 on Device A is the master port.
Configuration files
· Device A and Device C:
#
clock protocol ptp mdc 1
#
ptp profile 8021as
ptp mode oc
#
interface hundredgige 1/0/1
ptp enable
#
· Device B:
#
clock protocol ptp mdc 1
#
ptp profile 8021as
ptp mode p2ptc
#
interface hundredgige 1/0/1
ptp enable
#
interface hundredgige 1/0/1
ptp enable
#
Related documentation
· H3C S12500R Switch Router Series Network Management and Monitoring Configuration Guide-R3606
· H3C S12500R Switch Router Series Network Management and Monitoring Command Reference-R3606
