Provided by: kernel-doc-2.4.27_2.4.27-12_all bug


       sppp_reopen -  notify of physical link loss


       int sppp_reopen (struct net_device *dev);


       dev          Device that lost the link


       This function informs the synchronous protocol code that the underlying
       link died (for example a carrier drop on X.21)

       We increment the magic numbers to ensure that if the other  end  failed
       to  notice  we will correctly start a new session. It happens do to the
       nature of telco circuits is that you can lose carrier on one endonly.

       Having done this we go back to negotiating. This function may be called
       from an interrupt context.