Re: Retiring dhclient

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Thu, Nov 24, 2011 at 06:06:20PM +0000, Roy Marples wrote:
> On 24/11/2011 18:02, Joerg Sonnenberger wrote:
> >This isn't what I am talking about. Suspend/resume involves an explicit
> >IF_DOWN/IF_UP cycle, so it doesn't matter here. I am talking about
> >ifconfig $nic $option with option not including down. This should IMHO
> >not trigger a link state message, even if e.g. setting promisc mode,
> >changing MTU or multicast filters require a PHY reset.
> 
> Ah good.
> 
> So we can expect `ifconfig re0 mtu 1492; ifconfig re0 down; ifconfig
> re0 up` to change the MTU without affecting link state but the
> latter two calls straight afterwards do.

Yes. It does mean that there is a window in which unplugging the cable
and plugging it back won't be noticed, but it is my believe that is more
acceptable than the current status quo.

Does anyone know how long PHY resets for affected cards take?

Joerg