[openib-general] Re: TSO and IPoIB performance degradation

[Grant Grundler]

On Thu, Apr 27, 2006 at 12:23:52AM -0700, Greg Lindahl wrote:
> On Wed, Apr 26, 2006 at 11:13:24PM -0500, Troy Benjegerdes wrote:
> 
> > David is right. If you care about performance, you are already using SDP
> > or verbs layer for the transport anyway. If I am going to be doing IPoIB,
> > it's because eventually I expect the packet might get off the IB network
> > and onto some other network and go halfway across the country.
> 
> This is going to be a surprise to lots of people who want high-speed
> gateways from IB to ethernet -- many clusters connect to fileservers
> and other performance-sensitive gizmos that way.

Anything preventnig such a gateway from routing SDP to ethernet?
Those gateways obviously will grok IB protocols.
I'm asking becuase I don't understand/know if there is a real
barrier to an IB -> ethernet gateway _without_ IPoIB.

thanks,
grant