> -----Original Message-----
> From: Delio Brignoli [mailto:dbrign...@audioscience.com]
> Sent: Wednesday, September 21, 2016 4:45 AM
> To: Jesuiter, Henry (ALC NetworX GmbH) <henry.jesui...@alcnetworx.de>
> Cc: linuxptp-devel@lists.sourceforge.net
> Subject: Re: [Linuxptp-devel] Config option "assume_two_step"
> Hello Henry,
> If I recall correctly, assume_two_step is there to accommodate section
> of 802.1AS-2011 where it says that the twoStepFlag is “Reserved as
> TRUE, ignored on reception”.
> Regards

This is correct. There was a switch that follows this standard and was not 
properly setting twoStep so we were treating it like a oneStep mode when the 
switch expected us to treat it like a twoStep message. This was added to 
support that bad implementation, because of the way the standard is worded.

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