Re: [Linuxptp-users] Help Needed about Transparent Clock

[Akhil N. <akh...@tc...>]

On Wed, 2013-04-17 at 07:31 +0200, Richard Cochran wrote:
> On Tue, Apr 16, 2013 at 06:17:23PM +0000, Keller, Jacob E wrote:
> > 
> > As far as I know, it cannot. I believe TC also requires the same issue as BC which is multiple ports connected to a  single device?
> 
> Yes, however the TC only has to correct the residence time of the PTP
> packets in the switch. So it would not necessarily have to synchronize
> multiple PHCs in a system.
> 
> But there are other issues to consider. A TC must behave like a
> switch. Although you can use Linux to bridge multiple ports, still the
> performance is not as good as real switch. So I would expect that no
> one would be interested in a TC built on a Linux software switch.

So you mean to say that the router can not be used as TC ?
and also if it is been used then the performance won't be good as when
used with switch ? 
> The commercial TCs that I have seen combine a normal managed switch
> with an embedded processor. The switch diverts the PTP packets to the
> processor which then performs the TC functions.
> 
> HTH,
> Richard
> 
> 

Thanks and Regards

-- 
Akhil Nair <akh...@tc...>

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