Re: How much we can trust packet timestamping

[Alan Cox]

On Fri, 2003-01-10 at 22:07, Werner Almesberger wrote:
> One general issue in this area is what we can do with time
> sources that aren't system-wide, e.g. NIC-local timers. The
> problem is to calibrate them and to synchronize them to
> wall-clock time. I think there are basically two possible
> approaches:

You run NTP between the host clock and the nic timer. Its
all you really need. In the i2it hardware the NIC clock 
implemented hardware slewing so it could do NTP stuff