示例客户端配置

根据您和您的客户使用的Equinix Precision Time服务类型，需要各种 PTP 和 NTP 客户端配置设置。

Equinix PTP 服务配置

Configuration Parameter	Equinix Provided Configurations	Tool Tip
Domain	30	PTP domain is a network, or portion of a network, within which PTP operates. Within this network, all the clocks are in sync.
Log Announce Interval	1	Logarithmic value that controls the rate of PTP Announce packets from the PTP time server. Default is 1 (1 packet every 2 seconds).
Log Delayreq Interval	-4	Logarithmic value that controls the rate of PTP DelayReq packets. Default is -4 (16 packets per second).
Log Sync Interval	-4	Logarithmic value that controls the rate of PTP Sync packets. Default is -4 (16 packets per second).
Priority1	128	Lower value indicates higher priority.
Priority2	128	Lower value indicates higher priority.
Clock Class	13	Value that indicates the timescale which delivers UTC timestamps (set by default).
Clock Accuracy	23	Value that indicates how accurate the source is to UTC time. Equinix Time sources are accurate up to 1µs from UTC (set by default).

配置样本

这些部分包含 NTP 和 PTP 客户端的示例配置代码。这些值适用于默认的Precision TIme服务设置。

配置样本 - chronyd

server 192.168.1.21 iburst prefer  
server 192.168.1.22 iburst prefer  
driftfile /path/to/chrony/drift   
makestep 1 3   
rtcsync  
logdir /path/to/log/directory  
pidfile /path/to/chrony.pid  
log measurements statistics tracking  

配置样本 - ntpd

网络时间协议守护进程（ntpd）是用于NTP客户端设备的样本配置。

driftfile /var/lib/ntp/drift  
restrict default nomodify notrap nopeer noquery  
restrict 127.0.0.1   
restrict ::1  
server 192.168.1.21 iburst true  
server 192.168.1.22 iburst true  
includefile /etc/ntp/crypto/pw  
keys /etc/ntp/keys  
disable monitor

配置样本 - ptpd

同样，精确时间协议守护进程（tpd）维护系统时间，以便与使用PTP的时间服务器同步。

ptpengine:preset=slaveonly  
ptpengine:domain=30  
ptpengine:sync_outlier_filter_enable=y  
ptpengine:delay_outlier_filter_enable=y  
ptpengine:sync_stat_filter_enable=y  
ptpengine:delay_stat_filter_enable=y  
ptpengine:log_announce_interval=1  
ptpengine:log_sync_interval=-4  
ptpengine:log_delayreq_interval=-4  
ptpengine:calibration_delay=20  
ptpengine:hardware_timestamping=y  
clock:allow_step_backwards=y  
clock:allow_step_backwards_hw=y  
global:log_status=y  
global:status_file=/path/to/ptp.status  
global:log_file=/path/to/ptp.log  
global:log_statistics=y  
global:statistics_log_interval=0  
global:statistics_timestamp_format=both  
global:statistics_update_interval=1  
global:statistics_file=/path/to/ptp.statistics  
global:lock_file=/path/to/ptp.pid

配置样本 - ptp4l

ptp4l工具是Linux的PTP的实现。

[global]  
twoStepFlag             1  
slaveOnly               0  
priority1               128  
priority2               128  
domainNumber            30  
logAnnounceInterval     1  
logSyncInterval         -4  
logMinDelayReqInterval  -4  
tx_timestamp_timeout    100  
logging_level   6

样品配置 - Arista 7050 边界时钟模式配置

这个Arista 7050工具是边界时钟的IEEE 1588 PTP的实现。如果你在客户端网络内使用Arista 7050的边界时钟模式，可以使用这个样本配置代码。

<< Enabling Global PTP configurations on the switch >>  
ptp mode boundary  
ptp domain 30  
ptp source ip 172.16.100.9  
  
  
<< Slave Port Specific Configuration>>  
interface Ethernet47  
description ECX::EQIX-EPT-SV5-CX-PRI-03  
switchport mode trunk  
ptp enable  
ptp sync-message interval -4  
ptp announce interval 0  
ptp delay-req interval -4  
ptp vlan 111

示例配置 – Arista 7150 边界时钟模式

这是一个类似的工具，用于Arista 7150。如果你在客户端网络内使用Arista 7150的边界时钟模式，可以使用这个样本配置代码。

<< Slave Port Specific Configuration>>  
interface Port-Channel13   
   switchport trunk allowed vlan 13  
   switchport mode trunk  
   ptp enable  
   ptp sync-message interval -4  
   ptp announce interval 1  
   ptp delay-req interval -4  
   ptp vlan 13  
   
interface Ethernet44   
   description reserved_PTP  
   switchport trunk allowed vlan 13  
   switchport mode trunk  
   channel-group 13 mode active  
   ptp enable  
   ptp vlan 13  
  
<< Enabling Global PTP configurations on the switch >>  
ptp domain 30   
ptp source ip 10.100.1.209  
ptp priority1 129  
ptp mode boundary

Equinix PTP 服务配置​

配置样本 - chronyd​

配置样本 - ntpd​

配置样本 - ptpd​

配置样本 - ptp4l​

样品配置 - Arista 7050 边界时钟模式配置​

示例配置 – Arista 7150 边界时钟模式​

配置样本 - 使用网络边缘的NTP over Anycast解决方案​