Re: soft state (was Re: shim6 and bit errors in data packet headers

[Erik Nordmark <erik.nordmark@sun.com>]

marcelo bagnulo braun wrote:

> right, good point.
> but in the three way reachability test that is outlined in the faildet 
> draft, this exchange could be good for both purposes, right?

What's outlined in the draft isn't a 3-way exchange but more like two 
2-way exchanges. It could probably be extended to "bind" things 
together, but the details need to be worked out.

> well, i guess that my perception is that ULP feedback is not so common, 
> and that it will be common to fall back in reachability test to verify 
> that the path is working...
> Does current TCP usually implement this positive feedback for avoiding NUD?

I know Solaris has done this since Solaris 8, but I don't know the 
status of other implementations.

   Erik