Hi Jake!
The network device is the Intel Ethernet Connection (2) I218-LM in combination
with the e1000e driver version 3.4.0.2 (latest).
The output of ethtool -T eno1 is as follows:
Time stamping parameters for eno1:
Capabilities:
hardware-transmit (SOF_TIMESTAMPING_TX_HARDWARE)
software-transmit (SOF_TIMESTAMPING_TX_SOFTWARE)
hardware-receive (SOF_TIMESTAMPING_RX_HARDWARE)
software-receive (SOF_TIMESTAMPING_RX_SOFTWARE)
software-system-clock (SOF_TIMESTAMPING_SOFTWARE)
hardware-raw-clock (SOF_TIMESTAMPING_RAW_HARDWARE)
PTP Hardware Clock: 0
Hardware Transmit Timestamp Modes:
off (HWTSTAMP_TX_OFF)
on (HWTSTAMP_TX_ON)
Hardware Receive Filter Modes:
none (HWTSTAMP_FILTER_NONE)
all (HWTSTAMP_FILTER_ALL)
ptpv1-l4-sync (HWTSTAMP_FILTER_PTP_V1_L4_SYNC)
ptpv1-l4-delay-req (HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ)
ptpv2-l4-sync (HWTSTAMP_FILTER_PTP_V2_L4_SYNC)
ptpv2-l4-delay-req (HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ)
ptpv2-l2-sync (HWTSTAMP_FILTER_PTP_V2_L2_SYNC)
ptpv2-l2-delay-req (HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ)
ptpv2-event (HWTSTAMP_FILTER_PTP_V2_EVENT)
ptpv2-sync (HWTSTAMP_FILTER_PTP_V2_SYNC)
ptpv2-delay-req (HWTSTAMP_FILTER_PTP_V2_DELAY_REQ)
Jord Pool
IT Service Management
________________________________
From: Keller, Jacob E <jacob.e.kel...@intel.com>
Sent: Monday, May 7, 2018 7:54:43 PM
To: Jord Pool; linuxptp-users@lists.sourceforge.net
Subject: RE: Clock jumped forward or running faster than expected
> -----Original Message-----
> From: Jord Pool [mailto:jord.p...@outlook.com]
> Sent: Monday, May 07, 2018 12:40 AM
> To: linuxptp-users@lists.sourceforge.net
> Subject: [Linuxptp-users] Clock jumped forward or running faster than expected
>
> Hi,
>
> I have a server which synchronizes to a local NTP server in my network. Now I
> wanted to let phc2sys synchronize the physical hardware clock to the system
> clock (which is synchronized by NPT). The next step would be to run a ptp4l
> instance on the same machine to let it elect itself as the grandmaster node,
> distributing PTP time.
>
> When launching a phc2sys instance where I try to synchronize the physical
> hardware clock to the system clock (# phc2sys -c eno1 -s CLOCK_REALTIME -w -
> m) it returns the message 'Clock jumped forward or running faster than
> expected'. After, the offset is very high and tries to slew itself down but
> this will
> take forever.
>
> What could be the problem here or am I doing something wrong?
>
Hmm.. What device and driver is eno1? What's the output of ethtool -T eno1?
Thanks,
Jake
>
>
> Jord Pool
> IT Service Management
>
>
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