Thanks. -----Original Message----- From: Richard Cochran [richardcoch...@gmail.com] Received: Wednesday, 11 Nov 2015, 20:11 To: Keller, Jacob E [jacob.e.kel...@intel.com] CC: Gil Graiber [gil.grai...@harmonicinc.com]; linuxptp-users@lists.sourceforge.net [linuxptp-users@lists.sourceforge.net] Subject: Re: [Linuxptp-users] Should Linux PTP syn the clock used by date between PCs?
On Wed, Nov 11, 2015 at 05:35:18PM +0000, Keller, Jacob E wrote: > For master, you need to use phc2sys to sync the kernel time to the PHC > on the NIC doing the timestamping, on the slave you do the reverse, > which is what the "-r -r" option is for. The double -r is for the master. Actually, if you don't care which node is master/slave, then you can leave off '-s' (slave only) from ptp4l and put the double -r on every node's phc2sys command line. > Best practice is to use a different piece of hardware as a grand > master, rather than using one of the NICs directly as master. Yep. Thanks, Richard
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