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

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

Bernard Aboba wrote:
> Using Alper's definition as a starting point, here a proposed definition
> of "Link Down" and "Link Up".  What do people think?
> 
> Link Down
>      An event provided by the link layer that signifies that the link is
>      no longer capable of communicating IP packets.
> 
> Link Up
>      An event provided by the link layer that signifies that the link
>      has become capable of communicating IP packets.

I think it would be good if the definitions would clarify that even if 
the link layer on the host sees 100% packet loss for a short while, it 
doesn't necessarily imply that a link down event should be generated.
(It presumably shouldn't be generated until the link layer abandons the 
L2 association/connection/whatever.)

    Erik