From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: zero window probes on linux (fwd) Date: Wed, 14 Apr 2004 14:10:10 +0200 Sender: netdev-bounce@oss.sgi.com Message-ID: <20040414141010.267a6204.ak@suse.de> References: <20040414134106.3f36c629.ak@suse.de> <200404141205.RAA06111@shilpa.india.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@oss.sgi.com Return-path: To: Praveen Kumar Amritaluru In-Reply-To: <200404141205.RAA06111@shilpa.india.hp.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Wed, 14 Apr 2004 17:35:33 +0530 (IST) Praveen Kumar Amritaluru wrote: > > > > > This seems to be a bug. Has it been already fixed in later > > > > > kernel versions or is this how it is intended to remain? > > > > > > > > iirc this was intentional. The RFC suggested method doesn't work when talking to > > > > some stacks. > > > > > > > > > > But that cannot be valid enough justification for doing > > > something against RFC right? > > > > Of course it is. Welcome to the real world. RFC1122 has a lot of bugs and sometimes > > does not describe really implemented practice (e.g. BSD set the defacto standard > > in many behaviours and it does not always follow 1122) > > So do u consider mandating definition of zero-window probes as defined > in RFC793 as a bug in RFC1122? They are not directly a bug, but are just not what the world standardized on. > Or else r u saying this bug is introduced in linux to take care of > faulty stacks existing in the world. zero-window probes as defined > in RFC1122 is not buggy right? Implementing a production network stack is not about following some standard to the letter, but about interoperating with real implementations in a useful matter. Linux does that. -Andi