Re: [Linuxptp-devel] [PATCH v2 6/7] Add ignore_source_id config option.

[Keller, J. E <jac...@in...>]

> -----Original Message-----
> From: Patel, Vedang
> Sent: Monday, October 01, 2018 3:29 PM
> To: Keller, Jacob E <jac...@in...>; linuxptp-
> de...@li...
> Cc: Sanchez-Palencia, Jesus <jes...@in...>; Gomes,
> Vinicius <vin...@in...>
> Subject: Re: [Linuxptp-devel] [PATCH v2 6/7] Add ignore_source_id config
> option.
> 
> On Mon, 2018-10-01 at 21:32 +0000, Keller, Jacob E wrote:
> >
> > >
> > > -----Original Message-----
> > > From: Vedang Patel [mailto:ved...@in...]
> > > Sent: Wednesday, September 26, 2018 2:58 PM
> > > To: lin...@li...
> > > Cc: Gomes, Vinicius <vin...@in...>; Sanchez-Palencia,
> > > Jesus
> > > <jes...@in...>
> > > Subject: [Linuxptp-devel] [PATCH v2 6/7] Add ignore_source_id
> > > config option.
> > >
> > > This config option will skip the source port identity verification
> > > in
> > > the Sync and Follow_up messages. This option is needed when the
> > > announce
> > > messages are disabled because the slave cannot know the identity of
> > > master without announce messages.
> > >
> > > This is required by Automotive Profile as part of skipping the Best
> > > Master Clock Algorithm (BMCA).
> > >
> > Would it be better to allow configuring the expected source id
> > instead?
> >
> Manually configuring source ids for all slave devices is not going to
> be ideal in mass production.
> 
> Also, the spec[1] (look at Section 6.3, point #2) specifically asks for
> the source id to be ignored.
> 
> Thanks,
> Vedang

Yep, thanks for the explanation.

Regards,
Jake

> 
> [1] - https://avnu.org/wp-content/uploads/2014/05/Automotive-Ethernet-A
> VB-Func-Interop-Spec-v1.5-Public.pdf
> > Thanks,
> > Jake
> >