Re: Dormant Mode?

On Wed, 2005-08-24 at 13:29, James Kempf wrote:
> I think for purposes of Mobike, dormant mode could be defined as the mobile 
> host will not be originating any packets for some period of time, including 
> responses to IKEv2 probes, in order to preserve power but is still reachable 
> at one of the addresses should any packets be incoming. Gratiutious packets 
> should therefore be avoided.

my (somewhat dated, and admittedly limited) experience with demand-dial
ppp connections leads me to believe that the definition of "gratuitous"
is often highly user-specific and/or application-specific; if we go down
this path, will we end up with nodes exchanging specially-marked
selector sets describing the equivalent of the pppd "active-filter"?

> A deeper mode might be "no active addresses", in which the host either is 
> turned off for the night, or isn't prepared to take any incoming packets, 
> for even more power saving.

ok, that's what I thought you meant by "dormant" earlier.

In any event, if we create an operating mode in which NAT keepalives are
no longer sent, then that will, IMHO, be more-or-less equivalent to a
no-address-mode scheme --- if you suspend NAT keepalives for longer than
the NAT's idle-session-destruction timer, you'll essentially lose
incoming connectivity to the side which is behind that NAT it reasserts
its presence.

					- Bill