Re: [Linuxptp-users] ptp4l passive phc synchronization with active phc in linux bonding

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

On Mon, Apr 10, 2023 at 10:49:45PM +0530, shashank varshney wrote:
> I have following queries related to functioning of PTP with active-passive
> bonding:
> 
>    - Will passive/standby slave PHC synchronize itself with active slave
>    PHC when active-passive NIC ports are on different PHCs?

No, phc2sys doesn't know about the other interfaces in the bond.

>    - Does the passive NIC port's PHC is ready to take-over when the current
>    active slave NIC goes down or does this require the passive NIC's PHC to
>    synchronize first?

The latter. It's not a seamless switch.

-- 
Miroslav Lichvar