From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: James Cameron To: Dave Henriksen Cc: bluez-devel@lists.sourceforge.net Subject: Re: [Bluez-devel] Ideal mru and mtu ? Message-ID: <20040630232127.GK30504@hp.com> References: <1088608978.4959.9.camel@linux.site> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1088608978.4959.9.camel@linux.site> Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 1 Jul 2004 09:21:27 +1000 An ideal MTU would be the largest that works over the total network path from the FTP client to the FTP server. pppd's mru option determines how it negotiates this option with the peer. The negotiated mru forms the basis for the interface MTU. The MTU can be changed up and down after interface creation, using "ifconfig ppp0 mtu". pppd running over bluetooth just believes it has a byte stream to the peer. There may be bluetooth specific reasons to choose an MTU that matches on the air packet sizes, in order to reduce latency, but if your goal is mainly FTP my guess is that latency isn't important. -- James Cameron http://quozl.netrek.org/ HP Open Source, Volunteer http://opensource.hp.com/ PPTP Client Project, Release Engineer http://pptpclient.sourceforge.net/ ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel