Re: [Linuxptp-users] help the newb

[David G. <dav...@po...>]

On 08/12/2013 10:46 AM, Keller, Jacob E wrote:

> This may seem dumb, but have you checked to ensure that the firewall was
> disabled or the correct PTP ports were opened?
> 
> That is a pretty common issue with symptoms like this.


Thanks Jake.  Not a dumb question.  It's all off.

The 802.1Qav part of the firmware for this switch has it's roots from a
project started by Harman/BSS Audio.

http://www.bssaudio.com/en-US/products/gs724t

Although they say you can't modify a stock switch, that's incorrect, the
current GS724Tv3(-300) has the same guts as what Harman did.  The Harman
is a modified v2 hardware which became the v3.  According to the helpful
persons I got in touch with, their work doesn't properly support the
ratified 802.1Q-2011, but a pre-release.  Now that their work is owned
by Netgear with regards to the EAV license, they just haven't finished it.

The last few days playing around with wireshark has pretty much
confirmed it.

-- 
David Gravereaux <dav...@po...>