contain both a regular timestamp obtained from the system clock and the
current feed-forward ffcounter value. This enables new possibilities including
comparison of timekeeping performance and timestamp correction during post
processing.
- Add the net.bpf.ffclock_tstamp sysctl to provide a choice between timestamping
packets using the feedback or feed-forward system clock.
Committed on behalf of Julien Ridoux and Darryl Veitch from the University of
Melbourne, Australia, as part of the FreeBSD Foundation funded "Feed-Forward
Clock Synchronization Algorithms" project.
For more information, see http://www.synclab.org/radclock/
Submitted by: Julien Ridoux (jridoux at unimelb edu au)
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