Hello,
Sometimes I see a "tx poll timeout" sending a delay requests. After about 20
seconds and then the synchronization restarts. What could be the root cause? It
could be a problem of the driver or a problem of the network? What else?
...
...: master offset 5 s2 freq +34434 path delay 278
...: poll tx timestamp timeout
...: port 1: send delay request failed
...: port 1: SLAVE to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED)
...: driver changed our HWTSTAMP options
...: tx_type 1 not 1
...: rx_filter 1 not 12
...: port 1: FAULTY to LISTENING on FAULT_CLEARED
...: port 1: new foreign master 008063.fffe.db5e00-4
...: selected best master clock 00a069.fffe.01c094
...: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
...: port 1: minimum delay request interval 2^3
...: master offset -250 s2 freq +34188 path delay 289
...: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED
...: master offset 12 s2 freq +34370 path delay 289
...: master offset 27 s2 freq +34388 path delay 289
...
I'm using ptp4l version 1.3 with an Intel i350 ethernet interface with Red Hat
RHEL 6.5.
$ uname -a
Linux xxxx 2.6.32-431.20.3.el6.x86_64 #1 SMP Fri Jun 6 18:30:54 EDT 2014 x86_64
x86_64 x86_64 GNU/Linux
$ ethtool -i eth1
driver: igb
version: 5.0.5-k
firmware-version: 1.61, 0x8000090f
bus-info: 0000:24:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
Thank you
William
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