Re: [Linuxptp-users] Doubts about PTP standard

Namit Agrawal writes: But the widely varying residence time can be taken care of in a simple (t2 - t1) and (t4 - t3). Because no matter what, the difference will always tell you the time it took to propagate including the residence time. I think the point that nobody explains to user is that

[Linuxptp-users] Doubts about PTP standard

Hi All, My question is not related to linuxptp, but its rather a general question about PTP protocol. In the IEEE Std paper of 1588 protocol, from page 201 to 219, there is an appendix in which they have given examples for use of TCs, BCs and OCs. One thing to notice is that the mean

[Linuxptp-users] Stuck in the ptp4l command

Hi All, I am running linuxptp in software mode. This is the command that I gave: ptp4l -i eth0 -m -S ptp4l[2562.960]: port 1: INITIALIZING to LISTENING on INITIALIZE ptp4l[2562.961]: port 0: INITIALIZING to LISTENING on INITIALIZE ptp4l[2569.982]: port 1: LISTENING to MASTER on ANNOUNCE_

Re: [Linuxptp-users] Unable to run linuxptp-1.6 in kernel 3.13 in ubuntu 14.04

This is the output of the following 2 commands: ethtool -i eth0 driver: e1000 version: 7.3.21-k8-NAPI firmware-version: bus-info: :00:03.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: no lspci 00:00.0 Host bridge: Int

[Linuxptp-users] Unable to run linuxptp-1.6 in kernel 3.13 in ubuntu 14.04

Hi, For the past week, I am trying to run linuxptp-1.6 but it is giving errors. I give the following command- "ptp4l -i eth0 -m" The error is "the device eth0 does not have timestamping capability". Also when I run ethtool -i eth0 it gives that \ PTP Hardware Clock : none Hardware Transmit Tim