CURRENT_MEETING_REPORT_ Reported by George Clapp/Ameritech Minutes of the IP over Large Public Data Networks Working Group (IPLPDN) The IP over Large Public Data Networks (IPLPDN) Working Group met for seven sessions. Andy Malis reported that the IAB had some questions with the Multiprotocol over X.25 document. Fortunately, these questions were easily answered, and the document should be released as an RFC soon. (It has since been released as RFC 1356.) The Group agreed that there was sufficient proof of interoperable implementations to ask the IAB to advance the RFCs dealing with Frame Relay to the next step in the standards process. These RFCs are the following: 1315 Brown, C.; Baker, F.; Carvalho, C. Management Information Base for Frame Relay DTEs. 1992 April; 19 p. 1294 Bradley, T.; Brown, C.; A. Malis Multiprotocol Interconnect over Frame Relay. 1992 January; 28 p. 1293 Brown, C. Inverse Address Resolution Protocol. 1992 January; 6 p. The issue concerning Frame Relay and ATM interworking arose from discussion within the IP over ATM Working Group. The IPLPDN Working Group wished to reach consensus over a solution, and they agreed that the preferred encapsulation and protocol identification scheme was that specified in RFC 1294 and in CCITT document I.355. I.355 specifies the encapsulation of Frame Relay over ATM, and RFC 1294 specifies multiprotocol encapsulation over Frame Relay. The Group agreed to take this proposal to the IP over ATM Working Group. Tuesday afternoon was spent on Directed ARP and Shortcut Routing. Following a presentation on Directed ARP, the Group agreed to release the document to the IESG and IAB for approval as an RFC on the standards track. Release of Shortcut Routing was deferred as the authors wished to do more work and to gain implementation experience. Multiprotocol over Circuit ISDN was discussed on Wednesday afternoon and Thursday morning. The anticipated environment is one in which the signaling protocol cannot be relied upon to inform the ``called'' party of the type of the encapsulation protocol, and in which Point-to-Point Protocol (PPP) implementations are expected to be common. The Group agreed that a Frame Relay encapsulation as specified in RFC 1294 would be the default encapsulation and outlined a mechanism to differentiate 1 between Frame Relay and PPP implementations. Keith Sklower, Chris Ranch, and Cliff Frost volunteered to write the Internet Draft. They also volunteered to draft a document in which the PPP parameter negotiation protocol is investigated as a means for parameter negotiation between Frame Relay devices. Issues for the Next Meeting o LAPF (Frame Relay) <-> ATM Interworking o Directed ARP o Shortcut Routing o Multiprotocol over Circuit ISDN o Point-to-Point Parameter Negotiation over Large Public Data Networks The Group felt that a total of four sessions over two afternoons would be adequate to address these topics at the next IETF meeting. Attendees Sam Ayers s.ayers@sybus.com Douglas Bagnall deb@proteon.com Cynthia Bagwell cbagwell@gateway.mitre.org Tony Ballardie a.ballardie@cs.ucl.ac.uk William Barns barns@gateway.mitre.org Ken Benstead kbenstead@coral.com Caralyn Brown cbrown@wellfleet.com Alan Bryenton bryenton@bnr.ca Steve Buchko stevebu@newbridge.com John Burnett jlb@adaptive.com David Carr dcarr@gandalf.ca Greg Celmainis gregc@newbridge.com Dilip Chatwani dilip@synoptics.com Dean Cheng dean@sun2.retix.com George Clapp clapp@ameris.center.il.ameritech.com James Cobban jcobban@bnr.ca Tracy Cox tacox@sabre.bellcore.com Andy Davis andy@spider.co.uk Hans Dittler dittler@conware.de Cliff Frost cliff@cmsa.berkeley.edu Kathryn Fuller kathryn@codex.com John Garrett jwg@edsel.att.com David Getchell getchell@cisco.com Scott Ginsburg ginsburg@wellfleet.com Daniel Grossman dan@merlin.dev.cdx.mot.com Chris Gunner gunner@dsmail.enet.dec.com John Hagan hagan@dccs.upenn.edu James Harville jbh@unh.edu Frank Heath heath@cmc.com Ian Heavens ian@spider.co.uk 2 Juha Heinanen juha.heinanen@datanet.tele.fi Takashi Ikemoto tikemoto@xerox.com Dwight Jamieson djamies@bnr.ca James Keller j.keller@sprint.com Padma Krishnaswamy kri@sabre.bellcore.com Joseph Lawrence jcl@sabre.bellcore.com Whay Lee whay@merlin.dev.cdx.mot.com Fong-Ching Liaw fong.liaw@eng.sun.com Arthur Lin yalin@srv.pacbell.com Andrew Malis malis@bbn.com Douglas Miller dmm@telebit.com Jack Ng jkn@network.com Luc Nguyen luc@bellsouth.com James Pearl jim@microcom.com Ed Perreault ed@python.eng.microcom.com Eric Peterson elpeterson@eng.xyplex.com Venkat Prasad vsp@3com.com Russell Pretty pretty@bnr.ca David Robinson drb@relay.prime.com Benny Rodrig 4373580@mcimail.com Miguel Sasson sasson@xylogics.com Lansing Sloan ljsloan@llnl.gov Andrew Smith asmith@synoptics.com Rajesh Srivastava rajesh@flash.tandem.com Chris Sullivan mm@gandalf.ca Terrance Sullivan terrys@newbridge.com Sally Tarquinio sallyt@gateway.mitre.org Kaj Tesink kaj@cc.bellcore.com Sylvia Tom tom_sylvia@tandem.com Robert Ullmann ullmann@process.com Scott Wasson sgwasson@eng.xyplex.com James Watt jamesw@newbridge.com Liming Wei liming.wei@eng.sun.com Jehu Westmark westmark@ds1.scri.fsu.edu Jeff Wong jaw@io.att.com 3