Re: [Linuxptp-users] How to run multiple instances of ptp4l

[Richard C. <ric...@gm...>]

On Mon, Sep 29, 2014 at 01:24:43PM -0400, Rich Schmidt wrote:
> I am attempting to run multiple instances of ptp4l on a PTP slave. The idea
> is that I have an Intel i350-T4 NIC and I want each port to sync to a
> different GrandMaster.  (The slave is an NTP stratum 1 server which would
> sync to multiple GrandMasters, where each GrandMaster is in turn synced to
> an independent time source, like USNO Master Clock1, MC2, MC3...providing
> redundancy for NTP ).    Does this concept require linuxpp operation in
> unicast mode?

If the slave ports (and the GMs) are on separate networks, then there
is no problem, obviously.

If the GMs and the slave ports are all on the same network, then you
can and should use the PTP domainNumber to keep them (virtually)
separate.

HTH,
Richard