Re: Detecting link up

Oliver Neukum
2005-05-18T15:04:40Z

Am Mittwoch, 18. Mai 2005 16:37 schrieb Max Kellermann:
> A thought on a related topic:
>
> When a NIC driver knows that there is no link, why does it even try to
> transmit a packet? It could return immediately with an error code,
> without applications having to wait for a timeout.

That would be a duplication of work. If the driver provides
link detection the network core could check for it.

Regards
Oliver