Re: refactoring ip_output() and the L2 _output()

[David Young <dyoung%pobox.com@localhost>]

On Mon, Feb 04, 2013 at 02:57:57PM +0100, Joerg Sonnenberger wrote:
> On Mon, Feb 04, 2013 at 08:26:47AM -0500, Greg Troxel wrote:
> > I don't think it would be an improvement - you'd need a separate table,
> > and you'd need to do two lookups, one to find the cloning route, and
> > then to find the arp entry.  Right now the arp entry, if present, is
> > found directly.
> 
> I disagree. You are ignoring the impact of having the leaf nodes in the
> routing table, which can be quite significant.

Please explain more about this.  It's not clear what assumptions about
the routing data structure you have made.

Dave

-- 
David Young
dyoung%pobox.com@localhost    Urbana, IL    (217) 721-9981