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

[Patel, V. <ved...@in...>]

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

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