RE: QoS in Shared Media

["Jay Wang" <jwang@opixnetworks.com>]

Hi Juha,

>jay,
>
>dpt is layer 2 technology and i was talking about diffserv support at
>layer 2, 

I see. Sorry for the misunderstanding.

>which dpt doesn't properly have.  ethernet, on the other hand,
>does support diffserv also at layer 2, which allows you to build a layer
>2 switched network of any topology and still have proper support for
>diffserv.  
>according to your definition even atm supports diffserv since one can
>always use cbr vcs between routers and then let the routers do the
>proper queueing.  for several reasons this is not a good idea.
>

I that case, would you mind elaborating your concerns?

thanks,

- jay