Date: Thu, 23 May 2002 12:58:47 -0500 From: "McKenna, Lee" <lmckenna@lodgenet.com> To: "'Christophe Prevotaux'" <c.prevotaux@hexanet.fr>, freebsd-net@freebsd.org Cc: freebsd-hardware@freebsd.org Subject: RE: UDLR and DVB-S Message-ID: <3EA88113DE92D211807300805FA7994209149E09@chaplin.lodgenet.com>
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I have some interest in UDLR, but alas I am no programmer either. UDCast appears to have the first commercially available UDLR implementation, and if I am not mistaken, I believe they have it running on FreeBSD. I also think Emmanuel Duros wrote FreeBSD drivers for a few DVB-S cards while at Inria. I might be able to lend out some DVB-S hardware if someone wants to seriously tackle writing a driver for FreeBSD and commits it to open source... Later, --Lee > -----Original Message----- > From: Christophe Prevotaux [mailto:c.prevotaux@hexanet.fr] > Sent: Wednesday, May 08, 2002 8:10 AM > To: freebsd-net@FreeBSD.ORG > Cc: freebsd-hardware@FreeBSD.ORG > Subject: UDLR > > > Hi, > > I have once asked if someone would be interested in implementing UDLR > and DVMRP and include it in FreeBSD ? > > Julian Elischer mentioned it would be fairly trivial to implement as a > node in Netgraph. However I am no programmer. > > I was wondering if no one had interest in UDLR ? I understand > that today's > broadband access do not require these unidirectional links, > but I can't > believe no one needs this, since they are also plenty of > other use for it > apart from the fact it can be used for unidirectional link (one way > internet access (uplink is done thru a modem or a different kind of > internet access link)) > > If someone is interested in develloping this, there is some > code source > available (it is FreeBSD Release 2.2.x. based and has not > been maintained > for a long time). > > Receivers boards > ================ > DVB-S PCI adapter drivers are also needed for devices from > any of these > manufacturers > > http://www.coship.com/English/products/cdvbany2010s.htm > http://www.broadlogic.com > http://www.pentamedia.com > http://www.twinhan.com.tw > > who might be ready to lend or give out hardware in order to help > devellopement of these drivers. > > Uplink boards > ============= > These boards must be able to: > > - Transmit IP packet over DVB/MPEG 2 transport stream > > - Variable maximum data rate determined by external clock generator, > transparent for reception cards > > - ISA Bus > > As of today I have not found (yet) transmit (uplink) boards > manufacturer > > As for uplink boards the devellopement of such drivers are to > be a problem > since it is very unlikely that anyone as a personal space > segment on a DVB > capable satellite and the necessary hardware > > However if anyone has ideas on how to build a test cheap unit > for uplink > and downlink testing locally , please let me know. > > Also since Bill Fenner is both part of the UDLR IETF BOARD > and member of > the Mbone FreeBSD Team, we have a great source of internal > knowledge in > this protocol etc...(In the event that Bill agrees to help > (of course)) > > http://people.freebsd.org/~fenner/ > > I have contacted the author of the RFC for UDLR Emmanuel > Duros but as of > now it is to no avail since he has not answered my email (it has been > several months) > > Here are some pointers to some available literature and source code: > > What is UDLR (Short introduction) > ================================= > http://www.actconferences.com/sif2002/abstract/udlr.htm > > RFCs , Drafts and Charter > ========================= > http://www.ietf.org/html.charters/udlr-charter.html > > http://www.ietf.org/internet-drafts/draft-ietf-udlr-pppoe-00.txt > http://www.ietf.org/internet-drafts/draft-ietf-udlr-multicast- issues-00.txt http://www.ietf.org/internet-drafts/draft-ietf-udlr-security-00.txt http://www.ietf.org/internet-drafts/draft-ietf-udlr-dvmrp-conf-02.txt http://www.ietf.org/rfc/rfc3077.txt http://www.ietf.org/rfc/rfc1075.txt Source code =========== http://www-sop.inria.fr/rodeo/personnel/eduros/manu.html -- -- =============================================================== Christophe Prevotaux Email: c.prevotaux@hexanet.fr HEXANET SARL URL: http://www.hexanet.fr/ Z.A.C Les Charmilles Tel: +33 (0)3 26 79 30 05 3 Allée Thierry Sabine Direct: +33 (0)3 26 79 08 02 BP202 Fax: +33 (0)3 26 79 30 06 51686 Reims Cedex 2 FRANCE HEXANET Network Operation Center =============================================================== To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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