Re: [Linuxptp-users] Redundant multi-nic PTP slave

[Miroslav L. <mli...@re...>]

On Mon, Jun 13, 2022 at 09:11:07AM +0200, Gijs Peskens wrote:
> In our setup we're required to receive PTP on multiple NIC's for redundancy
> reasons, these are MLX5 cards and each port has it's on PHC. Currently the
> way it's setup is that we run a separate ptp4l instance for each port. And
> run only one phc2sys instance to sync from primary card to system clock. We
> currently don't have any scripts around this to control failover behavior or
> have tooling to keep a failed instance synced to the working instance.
> 
> What would be the recommended setup for our requirements?

Run multiple phc2sys instances configured to not control the clock,
but feed another process like chronyd/ntpd which can select good
sources and combine them for the synchronization of the clock.

With the timemaster program included in linuxptp it is easy to
configure.

-- 
Miroslav Lichvar