Re: [DNA] Definition of "Link Up" and "Link Down" events?

[James Kempf <kempf@docomolabs-usa.com>]

Brett,

> > If the L2 software hides the L2 handover latency, then "Link Up" and
Link
> > Down" never occur during handover, although they may occur at other
times,
> > for example, if the terminal moves out of range of any base stations.
>
> If such a handover involves changing L3 links, then for DNA it would be
> really good to have "Link Up" or at least some kind of signal to trigger
> the DNA process.
>

Yes, but I think that a radio protocol that supports make-before-break would
have to support that independently of DNA. Even if it uses RFC 2461, it
still needs some way to trigger the RS.

But I'm speculating. Is Hesham or George on this list? They are at Flarion,
which has a make-before-break radio protocol, perhaps they could tell us how
IP link handover is triggered.

            jak