Date: Fri, 13 Aug 2004 21:25:43 +0400 From: Roman Kurakin <rik@cronyx.ru> To: John Polstra <jdp@polstra.com> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/net if_tap.c Message-ID: <411CF997.8020002@cronyx.ru> In-Reply-To: <XFMail.20040813101044.jdp@polstra.com> References: <XFMail.20040813101044.jdp@polstra.com>
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John Polstra wrote: >On 13-Aug-2004 Roman Kurakin wrote: > > >>John Polstra wrote: >> >> >>>That's pretty much correct. IFF_UP is an administrative control >>>that expresses the desired state of the interface. The driver never >>>changes IFF_UP. IFF_RUNNING is the driver's idea of the _actual_ >>> >>> >>> >>> >>PPP state machine can remove IFF_UP. For example if connection is not >>persistent and link >>was broken for any reason. >> >> >I call that a bug. > > This is not a bug, this is feature of protocol. Some times link should go down (or other state from which it could go up only by administrator (or program) intervention). Probably IFF_UP in PPP violation could be concerned like some protocols stacks relative OSI. rik >John > >
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