4. 每台设备上可以同时启动多个gPTP程序,但是不能存在多个gPTP master,否则会自动切换; root@DevelLinux:~# ifconfig eth0 192.168.200.101/24 up && ptp4l -i eth0 -f gPTP.cfg-m & # 设备1 root@DevelLinux:~# ifconfig eth0 192.168.200.102/24 up && ptp4l -i eth0 -f gPTP.cfg-m & # ...
它基于 IEEE 1588 协议进行精简和修改,也称为 gPTP 协议。
gPTP配置文件在linuxptp目录: flexbuild_lsdk2012$ find . -name gPTP.cf ./packages/rfs/yocto-poky/build/tmp/work/core2-64-poky-linux/linuxptp/2.0-r0/linuxptp-3.1.1/configs/gPTP.cfg 存在多个版本时,可以在configs/yocto/local_arm64_devel.conf文件中指定版本号: ...
/etc/systemd/system/ptp4l.service.d/gPTP.conf [Service] ExecStart= ExecStart=/usr/sbin/ptp4l -2 -f /home/amine/linuxptp/gPTP.cfg -i eth0.10 -i eth0.20 -i eth0.30 -i eth0.40 -i eth0.50 -i eth0.60 -i eth0.70 -i eth0.80 eth0.90 -i eth0.100 -i eth0.110 -i eth0.120 -i et...
使用linuxptp:默认配置位于packages/rfs/yocto-poky/build/tmp/work/core2-64-poky-linux/linuxptp/2.0-r0/linuxptp-3.1.1/configs/default.cfg。删除gPTP.cfg中的neighborPropDelayThresh 800配置,下载至/home/root目录。在两台设备上分别执行测试命令,覆盖默认配置部分选项。多台设备可同时启动gPTP...
这导致P2P和E2E方式在如下方面存在差异。...(2)时间戳采样方式 gPTP只能工作在MAC子层,PTP除了可以工作在MAC子层,还可以工作在传输层。...(3)时钟类型 PTP时钟支持两种时钟类型,One-Step Clock和Two-Step Clock。 1.1K21 Linux下调试1588单步时间戳报文...
The messages and data sets in the PTP and gPTP standards are full of stuff that looks a bit like C-language pseudo code, and all this is unfortunately in camel case. In those cases where the linuxptp code is closely related to these fields, we retain the camel case, even though it hu...
linuxptp-1.6/gPTP.cfg linuxptp-1.6/hash.c linuxptp-1.6/hash.h linuxptp-1.6/hwstamp_ctl.8 linuxptp-1.6/hwstamp_ctl.c linuxptp-1.6/incdefs.sh linuxptp-1.6/linreg.c linuxptp-1.6/linreg.h linuxptp-1.6/linuxptp.IAB linuxptp-1.6/linuxptp.IAD linuxptp-1.6/linuxptp.IMB linuxptp-1.6/linux...
running in gPTP mode according to the 802.1AS-2011 standard. Setting this option to zero will disable the sync message timeout. The default is 0 or disabled. .TP .B transportSpecific The transport specific field. Must be in the range 0 to 255. The default is 0. .TP .B ...
Does it help if you add the 'step_threshold 0.00002' setting to the gPTP.cfg file? This helped a lot !! However, if I keep repeated to modifying the time between 1500002055 and 1595964364 many times, sometimes same problem happens (probability is about 1 time per 20 trial) with the same...