On Fri, Mar 27, 2020 at 09:34:37PM +0000, Jim Rucker wrote:
> Hello. We have a small network with a master, a switch that correctly adds 
> peer-response corrections and 2 slaves. When 1 of the slaves is on everything 
> is fine. However, if we run ptp4l on both slaves at the same time we get 
> "rogue peer delay response" errors on both. It looks like the ptp4l slaves 
> are getting the path_delay_resp from the other slave node and erroring out 
> because the slave doesn't have an outstanding peer_delay_req.
> Since the peer delay req/resp are all multicast we can't expect the switch to 
> stop these packets from reaching the other slaves, so how do we fix this? Is 
> there a configuration option that would help?

Make sure all of the P2P links are point to point.  You can't use a
switch in P2P network, unless that switch is a P2P Transparent Clock.

Thanks,
Richard


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