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Re: [lwip-users] how lwip know internet cable is unplug


From: Kieran Mansley
Subject: Re: [lwip-users] how lwip know internet cable is unplug
Date: Fri, 02 Sep 2011 12:02:34 +0100

On Fri, 2011-09-02 at 05:26 +0000, vincent cui wrote:
> When unplug internet cable, how lwip deal it ?

It doesn't.  Whether the link is up or not is of no real interest to a
TCP/IP stack.  It will just try to send packets, and the lower layers
(e.g. the driver you're using) have to deal with the link status.

Kieran




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