~ March 1992 INTERNET MONTHLY REPORTS ------------------------ The purpose of these reports is to communicate to the Internet Research Group the accomplishments, milestones reached, or problems discovered by the participating organizations. This report is for Internet information purposes only, and is not to be quoted in other publications without permission from the submitter. Each organization is expected to submit a 1/2 page report on the first business day of the month describing the previous month's activities. These reports should be submitted via network mail to: Ann Westine Cooper (IMR@ISI.EDU) NSF Regional reports - Corinne Carroll (ccarroll@NNSC.NSF.NET) Directory Services reports - Tom Tignor (TPT2@ISI.EDU) Requests to be added or deleted from the Internet Monthly report list should be sent to "IMR@isi.edu". Back issues of the Internet Monthly Report can be copied via FTP: FTP> nis.nsf.net Login: anonymous guest ftp> cd imr ls get IMRYY-MM.TXT For example, JUNE 1991 is in the file IMR91-06.TXT. Cooper [Page 1] Internet Monthly Report March 1992 TABLE OF CONTENTS INTERNET ACTIVITIES BOARD IAB MESSAGE . . . . . . . . . . . . . . . . . . . . . . page 3 INTERNET RESEARCH REPORTS . . . . . . . . . . . . . . . . page 6 AUTONOMOUS NETWORKS . . . . . . . . . . . . . . . . . page 6 END-TO-END SERVICES . . . . . . . . . . . . . . . . . page 6 RESOURCE DISCOVERY AND DIRECTORY SERVICE . . .. . . . page 6 INTERNET ENGINEERING REPORTS . . . . . . . . . . . . . . page 7 Internet Projects BARRNET . . . . . . . . . . . . . . . . . . . . . . . . . page 11 BOLT BERANEK AND NEWMAN, INC., . . . . . . . . . . . . . page 11 CERFNET . . . . . . . . . . . . . . . . . . . . . . . . . page 12 CICNET. . . . . . . . . . . . . . . . . . . . . . . . . . page 12 CIX (COMMERCIAL INTERNET EXCHANGE). . . . . . . . . . . . page 13 CONCERT . . . . . . . . . . . . . . . . . . . . . . . . . page 14 FARNET (FEDERATION OF AMERICAN RESEARCH NETWORKS) . . . . page 15 ISI . . . . . . . . . . . . . . . . . . . . . . . . . . . page 16 JVNCNET . . . . . . . . . . . . . . . . . . . . . . . . . page 17 LOS NETTOS . . . . . . . . . . . . . . . . . . . . . . . page 20 MIDNET . . . . . . . . . . . . . . . . . . . . . . . . . page 20 MITRE . . . . . . . . . . . . . . . . . . . . . . . . . . page 20 NEARNET (NEW ENGLAND ACADEMIC AND RESEARCH NETWORK) . . . page 21 NNSC, UCAR/BOLT BERANEK and NEWMAN, INC., . . . . . . . . page 23 NORTHWESTNET. . . . . . . . . . . . . . . . . . . . . . . page 24 NSFNET/ANSNET BACKBONE ENGINEERING. . . . . . . . . . . . page 24 NSFNET/INFORMATION SERVICES . . . . . . . . . . . . . . . page 32 PREPnet . . . . . . . . . . . . . . . . . . . . . . . . . page 35 PITTSBURGH SUPERCOMPUTER CENTER . . . . . . . . . . . . . page 35 SAIC. . . . . . . . . . . . . . . . . . . . . . . . . . . page 36 SESQUINET . . . . . . . . . . . . . . . . . . . . . . . . page 37 UCL . . . . . . . . . . . . . . . . . . . . . . . . . . . page 38 UDEL. . . . . . . . . . . . . . . . . . . . . . . . . . . page 39 DIRECTORY SERVICES ACTIVITIES IETF OSIDS WORKING GROUPS . . . . . . . . . . . . . . . . page 41 FOX - FIELD OPERATIONAL X.500 PROJECT . . . . . . . . . . page 41 ISI. . . . . . . . . . . . . . . . . . . . . . . . . . page 42 SRI. . . . . . . . . . . . . . . . . . . . . . . . . . page 42 OSI IMPLEMENTOR'S WORKSHOP (OIW) . . . . . . . . . . . page 42 PSI DARPA/NNT X.500 PROJECT . . . . . . . . . . . . . . . page 43 PSI WHITE PAGES PILOT . . . . . . . . . . . . . . . . . . page 44 CALENDAR OF EVENTS . . . . . . . . . . . . . . . . . . . . . page 45 Cooper [Page 2] Internet Monthly Report March 1992 IAB MESSAGE NEW IRTF CHAIRPERSON The IAB has selected Jon Postel to chair the Internet Research Task Force, replacing Dave Clark who was forced to resign due to time conflicts. Jon has been active member of the Internet research community since its beginnings in 1974, and before that played a major role in defining the ARPANET protocols, starting in 1969. As "Protocol Czar", he defined the final specifications of protocols such as TCP, IP, and SMTP. As RFC Editor, he has maintained the uniformly high editorial and technical quality of the RFC series. IAB MEETINGS The IAB met for 1.5 days on March 16-17, 1992 at the San Diego IETF Meeting. Minutes of this meeting will be published when they become available. The minutes of the IAB meetings of November 1991 and January 1992 are now available for anonymous FTP from host venera.isi.edu with pathnames: pub/IABmins.nov91.txt pub/IABmins.jan92.txt STANDARDS ADVANCES The following list shows the protocol standards actions approved by the IAB since February 1, 1991. NetFAX -- A File Format for the Exchange of Images Proposed Standard: 17 March 1992 RFC 1314 - "A File Format for the Exchange of Images in the Internet" Frame Relay MIB Proposed Standard: 17 March 1992 RFC-1315 - "Management Information Base for Frame Relay DTEs" TCP Extensions for High Performance Proposed Standard: 17 March 1992 RFC in preparation. Cooper [Page 3] Internet Monthly Report March 1992 Character MIBs Proposed Standard: 17 March 1992 RFCs in preparation. IP over SMDS Proposed Standard: 4 February 1991 Draft Standard: 17 March 1992 RFC-1209 - "Transmission of IP Datagrams over the SMDS Service" IP TOS -- IP Type of Service Proposed Standard: 27 February 1992 RFC in preparation. SMDS Interface MIB Proposed Standard: 24 February 1992 RFC in preparation. IP Forwarding Table MIB Proposed Standard: 24 February 1992 RFC in preparation. Note: The IESG recommended that the Internet Draft "IP Forwarding Table MIB" be published as a Proposed Standard. This document depends on the Internet Draft "Type of Service in the Internet Protocol Suite" and should be published after that document. This is the product of the Router Requirements Working Group of the IETF. During IESG and IAB consideration of the -04 version of this specification, the working group developed a -05 version and published it as an Internet Draft. Since the differences are very minor, and indeed probably have no effect on the resulting service, the IAB has adopted the -05 version and will publish it as a Proposed Standard. We want to encourage (!) working groups to always submit finished specifications, and discourage frequent post-submission changes. However, forcing a recycling of this particular specification, and thereby adding a month of delay, seemed entirely unnecessary. Cooper [Page 4] Internet Monthly Report March 1992 MIB-I -- Management Information Base Standard: 26 April 1990 Historic: March 1992 In August 1991, MIB-II (RFC-1213) became a Standard for the Internet. MIB-II was intended to replace the earlier MIB-I, and in fact MIB-II is a fully backwards-compatible extension to MIB-I. Therefore, MIB-I has been demoted from Standard to Historic (an honorable end for a notable IETF effort). This new state for MIB-I is reflected in the current "IAB Official Protocols Standards" RFC-1280 (March 1992). STANDARDS ACTIONS PENDING ON APRIL 1, 1992 'BGP NEXT-HOP-SNPA Attribute' to Proposed Standard. Held up for discussion with IESG. Concern was general architectural issues raised by this specification. 'Mapping between X.400(1988) / ISO 10021 and RFC 822' to Proposed Standard. Approved by the IAB, pending resolution of an organizational issue with the IESG. 'X.400 1988 to 1984 downgrading' to Proposed Standard. The IAB believes it is entirely appropriate to progress an Internet standard for the 1988->1984 X.400 fallback, even though the spec is the subject of CCITT and ISO standards. Approved by the IAB, pending resolution of an organizational issue with the IESG. 'SNMP Security' to Proposed Standard Held up for discussion with IESG area and WG chair. Revision in preparation. 'Point to Point Protocol (PPP)' to Proposed Standard. Ballot in progress. Bob Braden (Braden@ISI.EDU) Cooper [Page 5] Internet Monthly Report March 1992 INTERNET RESEARCH REPORTS ------------------------- AUTONOMOUS NETWORKS ------------------- No progress to report this month. Deborah Estrin (Estrin@USC.EDU) END-TO-END SERVICES ------------------- No progress to report this month. Bob Braden (Braden@ISI.EDU) RESOURCE DISCOVERY AND DIRECTORY SERVICE ---------------------------------------- The Internet Research Task Force on Resource Discovery and Directory Service met in March, and discussed the problem of how to allow resource discovery systems to scale by several orders of magnitude. We began by exploring the current paradigms for resource discovery, and by proposing some experiments for the group. We are now considering a problem we call "Perspective Discovery". The idea is that as an increasing number of information services, indices, etc., are interconnected on the Internet, we see a burgeoning "Web" of information. For example, there are now gateways/access methods between Archie, X.500, WAIS, Prospero, WWW, etc. For this web to be useful, there need to be ways to locate useful entry points. Such entry points are being built and exported by individuals or groups, with an impetus for their entry points to become popular. We are currently exploring an architecture that would allow entry points to be advertised, interrelated, and discovered. This approach is different from the directory-of-directories approach, since it does not imply a cascading hierarchy (where eventually there are directories of directories of directories, etc.), and scalability is achieved through specialization rather than global nesting. Mike Schwartz (schwartz@cs.colorado.edu) Cooper [Page 6] Internet Monthly Report March 1992 INTERNET ENGINEERING REPORTS ---------------------------- 1. The IETF met in San Diego March 16-20, 1992 and was hosted by San Diego Supercomputer Center. Many thanks are due to Paul Love and all the folks at SDSC for the amazing amount of work that went into hosting this meeting, and to the staff at the Hyatt Islandia. The facilities were outstanding and the location was beautiful. Megan Davies again demonstrated her superior abilities at scheduling and coordination as we managed to avoid rain until Friday afternoon. 64 working groups, BOFs, and directorates met during the week. In addition to being a productive meeting, the San Diego IETF meeting enjoyed a number of "firsts." This was the first meeting where attendence broke the 400 person mark. It was also the first to break the 500 attendee mark! There were over 525 attendess in San Diego. Another first for the IETF meeting was the audio broadcast of the technical presentations and plenary meetings, thanks to the efforts of Steve Casner, Steve Deering, and a host of others. There were a number of receiving sites in the United States, the UK, Sweden, and Australia 2. The next IETF meeting, co-hosted by MIT and NEARNet, will be held in Cambridge during the month of July, 1992. Details will be provided in future Internet Monthly reports and announced to the IETF mailing list. 3. The IESG received a revised version of the "MIME (Multipurpose Internet Mail Extensions)" Internet draft This document reflects both specific editorial changes requested by the IESG and minor corrections. A second last call was sent. 4. The IESG made the following recommendations to the IAB during the month of March, 1992: a. SNMP Administrative Model be published as a Proposed Standard. b. SNMP Security Protocols be published as a Proposed Standard. c. Definitions of Managed Objects for Administration of SNMP Parties be published as a Proposed Standard. Cooper [Page 7] Internet Monthly Report March 1992 d. The Point-to-Point Protocol for the Transmission of Multi-Protocol Datagrams Over Point-to-Point Links" be published as a Proposed Standard. e. The PPP Internet Protocol Control Protocol (IPCP) be published as a Proposed Standard. 5. The following three Working Groups were created during the month of March: Audio/Video Transport (avt) User Documents Revisions (userdoc2) Chassis MIB (chassis) 6. Twenty eight Internet Draft Actions were taken between March 1 and 31, 1992: (Revised draft (o), New Draft (+) ) WG I-D Title ------ ----------------------------------------------------- (telnet) o Telnet Authentication Option (telnet) o Telnet Authentication Option (appext) o Definitions of Managed Objects for the Point-to-Point Protocol (appleip) o The Transmission of Internet Packets Over AppleTalk Networks (822ext) o MIME (Multipurpose Internet Mail Extensions): Mechanisms for Specifying and Describing the Format of Internet Message Bodies (dhc) o Dynamic Host Configuration Protocol (smtpext) o SMTP Extensions for Transport of Enhanced Text-Based Messages (iplpdn) o Multiprotocol Interconnect on X.25 and ISDN in the Packet Mode (disi) o An Executive Introduction to Directory Services Using the X.500 Protocol Cooper [Page 8] Internet Monthly Report March 1992 (appleip) o SNMP over AppleTalk (x400ops) + Routing coordination for X.400 MHS services within a multi protocol / multi network environment (x400ops) + Mapping between X.400(1984/1988) and Mail-11 (DECnet mail) (telnet) o Telnet Environment Option (telnet) + Telnet Remote Flow Control Option (disi) + Technical Overview of Directory Services Using the X.500 Protocol (telnet) + Telnet Authentication: Kerberos Version 4 (telnet) + Telnet Authentication: Kerberos Version 5 (dns) + DNS MIB Extensions (osids) + The Simple OSI Stack (cip) + Notes for Application Implementors on ST-II Socket API (x400ops) + Operational Requirements for X.400 Management Domains (snmp) + Proxy between SNMP Transport Mappings (iplpdn) + Discovery and Routing over the SMDS Service (opstat) + A Model for Common Operational Statistics (none) + HYBRID NETBIOS END-NODES (ethermib) + Implementation Notes and Experience for The Internet Ethernet MIB (ethermib) + Definitions of Managed Objects for the Ethernet-like Interface Types (none) + IDRP for IP Cooper [Page 9] Internet Monthly Report March 1992 7. Two RFC's based on IETF WG activity were produced during the month of March, 1992. RFC Status WG Title ------- -- -------- ----------------------------------------- RFC1308 I (disi) Executive Introduction to Directory Services Using the X.500 Protocol RFC1309 I (disi) Technical Overview of Directory Services 8. Also produced during the month of March were three other Informational RFCs: RFC1280 which documents the current list of IAB Official Protocol Standards, RFC1310 which describes the Internet Standards Process, and RFC1311 which introduces the STD Notes series. RFC Status Title ------- ------ --------------------------------------------- RFC1280 I IAB OFFICIAL PROTOCOL STANDARDS RFC1310 I The Internet Standards Process RFC1311 I Introduction to the STD Notes Phill Gross (pgross@NRI.RESTON.VA.US) Cooper [Page 10] Internet Monthly Report March 1992 INTERNET PROJECTS ----------------- BARRNET ------- Three new 56kbps sites, one T1 site, and one dial-in site were connected in March. Implementation of routing to the CIX remains delayed pending resolution of routing issues. Circuits were ordered to complete a T1 loop between BARRNet's hub sites at Stanford, Davis, Sacramento, and Menlo Park, providing a fully redundant T1 path to the NSS for sites in the Sacramento Davis area. A similar loop is planned for the Stanford/NASA Ames/Santa Clara/Cupertino hub sites. Paul Baer BOLT BERANEK AND NEWMAN INC. ---------------------------- Inter-Domain Policy Routing In March 1992, the IDPR working group submitted IDPR to the IESG for Proposed Standard status consideration. BBN continued to assemble a group of participants for IDPR experiments within the Internet and met with some of the potential participants. In the previous month, BBN fulfilled its commitment to producing the IDPR configuration database software. With the subsequent maternity leave of BBN's IDPR software engineer, BBN is not currently working on the gated version of IDPR. SAIC is leading the IDPR gated development effort. Please refer to their submission for a discussion of the status of that software. ST Conferencing During March, a total of 30 video conferences and demonstrations were conducted. Six of the conferences involved three sites, one (by special arrangement) involved four sites, and the remaining twenty-three included only two sites. A large number of these conferences were associated with the Reforger FV demonstration. The DART project also used conferencing services. There were no SIMNET exercises in March. During March, BBN developed and began field testing for new T/20 software to ensure that the gateways do not drop priority packets such as ST conferencing packets when the traffic load exceeds the fatpipe capacity. This had caused a problem with UK/US video Cooper [Page 11] Internet Monthly Report March 1992 conferencing. Preliminary field testing has been successful, and will continue in April. Ft. Leavenworth joined the TWB as a new conferencing site, and participated in the FV conferences and simulation (non-SIMNET) exercises. Frankfurt also joined the TWB temporarily for the FV demo, and will return as a regular conferencing site when a permanent data connection to Frankfurt becomes available. Jil Westcott (westcott@bbn.com) CERFNET ------- During April CERFnet will be moving their headquarters from the San Diego Supercomputer Center (SDSC) to General Atomics headquarters just down the street. In the new location CERFnet will have new Network Operations Center (NOC) facilities and extensive additional space for its expanding staff. Our 800 number (800-876-CERF) will remain the same, but our direct line will change to (619) 455-3000. Our mailing address will remain the same - CERFnet, P.O. Box 85608, San Diego, CA. 92186-9784. CERFnet staff attended the Net '92 conference in Washington D.C. and introduced the prototype of a board game - "The LAN That Time Forgot." The game provides a fun way to learn about the Internet as you travel through different e-mail, FTP, and Telnet paths. People were enthusiastic about the game and had good suggestions for additional improvements. The game will be completed and released by early Fall. Susan Calcari CICNET ------- CICNet activities for February and March, 1992 On February 4, the winter meeting of the CICNet Network Information Resources Committee was held in Chicago. The meeting was attended by over 30 participants from almost all CICNet sites. Featured presentation included a discussion of a full text database service by John Price-Wilkin of the University of Michigan, activities at the Coalition for Networked Information by Craig Summerhill of CNI, and a presentation on the Gopher information service by Mark McCahill of the University of Minnesota. Cooper [Page 12] Internet Monthly Report March 1992 Also during February, CICNet President Mike Staman represented CICNet at meetings of FARNET and the Midamerica Coalition for High Performance Computing. Mike was also elected to the Board of Directors of FARNET. At the end of the month CICNet staff participated in series of meetings in Illinois which were designed to inform education, business and industry of the development of net ILLINOIS. The meetings were attended by over 200 individuals. During February, 9.6 billion packets were switched by all routers on the network and 3.76 billion packets were accepted into the network. This represents a 20% increase over January in the number of packets accepted into the network. On March 5th and 6th, the CICNet Technical Board met at the Ameritech headquarters in Rolling Meadows, IL. Topics for this meeting included planning for an SMDS trial in the Chicago area and a discussion of dialup services. New members joining CICNet in February and March include Share, Inc, the Illinois Institute of Technology - Kent College of Law, and the Motorola Corp. During March a project to upgrade all of CICNet's Cisco backbone routers to CSC/3 processors was completed. CICNet has recently established an active WAIS server which provides an easy way to search a list of Bitnet node sites, UUCP sites, Internet mailing lists, and email addresses for individuals who participate in USEnet news groups. John Hankins CIX (COMMERCIAL INTERNET EXCHANGE) ---------------------------------- The following report outlines CIX-WEST usage for the month of March, 1992. CIX In Out Member Octets Packets Errors Octets Packets Errors -------- ---------------------------- --------------------------- AlterNet 25760889533 87660278 13142 10567870069 84629940 0 CERFnet 2425748767 15400290 301 3074272147 13901894 0 PSINet 12311405573 85865899 1264 26795232905 105650436 21 Starting: Feb 29 1992 at 23:51 Ending: Mar 31 1992 at 23:20 SNMP Polling Intervals: 2909 SNMP Polling Frequency: 15 minutes Cooper [Page 13] Internet Monthly Report March 1992 In - traffic entering the CIX from the CIX member network Out - traffic exiting the CIX into the CIX member network At the present time, approximately 560 networks within AlterNet, CERFNet, and PSINet are using the CIX-WEST. A complete list of networks accessible via the CIX is available via anonymous FTP from cix.org in the file cix.nets. The current revision of this list is: 3-MAR-1992. EUnet, the pan-European open systems computer network, has recently joined the CIX. Send mail to info@cix.org for information regarding the CIX. Mark Fedor (fedor@uu.psi.com) CONCERT ------- CONCERT added six new Universities/Colleges this month to its list of connected sites. The new schools include Catawba College, Chowan College, Elon College, Meredith College, Queens College, and Shaw University. CONCERT staff members participated in the National Net 92 conference held in Washington, DC. The CONCERT staff demonstrated their current Packet Video Videoconferencing facilities. National Net 92 visitors were able to view in a workstation X Window the regularly scheduled programming on the MCNC's CONCERT Video Network's general purpose channels. Viewers were also able to participate in interactive collaborative sessions with people in MCNC`s Visualization Center located in Research Triangle Park, North Carolina. The production ANS T3 network was used for the communications from Washington to Research Triangle Park. CONCERT staff also particpated in the IETF workshop held in San Diego. At the IETF, work on the CONCERT trouble ticket system was presented to the UCP working group. The trouble ticket system is based on freely available software tools, including the postgres database package available from Berkeley. Testing of the system is in progress, and it is planned for the system to be made available to interested sites "real soon now" (hopefully by the end of April, or early May). Tom Sandoski Cooper [Page 14] Internet Monthly Report March 1992 FARNET (FEDERATION OF AMERICAN RESEARCH NETWORKS) ------------------------------------------------- FARNET activities for February and March, 1992 FARNET sponsored a workshop on improving end-to-end reliability and operations capability in the Internet, on February 10-12, with support from the National Science Foundation. Attendees included technical and management staff from FARNET member organizations and representatives from HPCC agencies, the IETF, two RBOCs, and the library community. Preliminary results were released before the March IETF meeting. A final report will be available in about three weeks. More information about the workshop is available on host farnet.org via anonymous ftp. Look in the /farnet/farnet_docs/orlando-ws directory. Note that the results are not fully processed yet; the final report will contain our complete recommendations. FARNET President Eric Hood testified before the Subcommittee on Science of the House Committee on Science, Space and Technology on March 12. Hood praised the performance of the National Science Foundation in managing the NSFNET program and called for the extension of network services to new communities, cooperation among Federal agencies in the NREN program, and relaxation of the NSFNET "Appropriate Use Policy" to permit greater commercial use of the network. The full text of his testimony and that of the other witnesses is available on host farnet.org, directory /farnet/nren. FARNET is working on a number of project ideas in K12 networking, including one with the national consortium of magnet high schools of science, math and technology. FARNET and magnet school representatives met in Maryland on March 22 to discuss how a joint project might be implemented and have agreed to work together on a preliminary proposal. FARNET and Merit sponsored a series of demonstrations at National Net92 (March 25-27) to showcase how people are using the Internet today to support education and research, in settings from elementary school to graduate school. Archie, WAIS, Gopher, the Merit Cruise of the Internet, and several K12 applications were demonstrated. Other FARNET members exhibiting at the meeting included CONCERT/MCNC and Cornell University. The next FARNET meeting will be held in Research Triangle, North Carolina, May 13-15. The topic is "Business and Strategic Planning for Your Organization." Guest registrations are available. For more information, contact Laura Breeden at FARNET. Cooper [Page 15] Internet Monthly Report March 1992 FARNET will host a BOF at the spring Interop in Washington, DC, May 21, on "Why State and Regional Networks?" Laura Breeden ISI --- GIGABIT NETWORKING Tom Tignor, Bob Braden, Steve Casner, Eve Schooler, and Jon Postel attended the IETF meetings in San Diego, Ca, March 15-16. Steve Casner, and Eve Schooler attended Multimedia '92 Conference in Monterey, California. Joyce Reynolds, attended the Coalition of Networked Information Meetings, March 23 - 25, Washington, D.C. as an invited speaker/panelist: "User Services Planning in the Internet" with (Paul Evan Peters (chair), George Strawn, Vint Cerf, and Brenden Kehoe). Joyce Reynolds, was a Briefing Leader: User Services and Information/Directory Services (with Chris Weider), Two sessions. Joyce Reynolds attended National Net 92, March 25 - 27, Washington, D.C., as an invited speaker: "Users and Intermediaries". Invited panelist: User Services Panel (with Laura Breeden, Jack Pope (chair), John Rugo, John Martin, Carol Lambert, Susan Calcari, and Sandy Merola). Joyce Reynolds attended the NASA Internet Users Conference, March 30 - April 3, Greenbelt, Maryland, as an invited Speaker: "Internet Information Servers", "User Services Planning in the Internet". Six RFCs were published this month. RFC 1280: Postel, J., Editor, Internet Activities Board, "IAB Official Protocol Standards", March 1992. RFC 1306: Nicholson, A., and J. Young, "Experiences Supporting By-Request Circuit-Switched T3 Networks", Cray Research, Inc., March 1992. RFC 1308: Weidner, C., (ANS), and J. Reynolds, (ISI), "Executive Introduction to Directory Services", March 1992. RFC 1309: Weidner, C., (ANS), J. Reynolds, (ISI), and S. Heker (JVNC), "Technical Overview of Directory Services", March, 1992. Cooper [Page 16] Internet Monthly Report March 1992 RFC 1310: Lyman Chapin, Chair, Internet Activities Board, "The Internet Standards Process", March 1992. RFC 1311: J. Postel, Editor, Internet Activities Board, "Introduction to the STD Notes", March 1992. Ann Westine Cooper (Cooper@ISI.EDU) MULTIMEDIA CONFERENCING The March IETF meeting in San Diego was an exciting one for those interested in teleconferencing. The general sessions plus sessions of the Audio/Video Transport working group and the Teleconferencing Architecture BOF were "audiocast" using packet audio over the Internet to listeners at 20 sites on three continents spanning 16 timezones. In the AVT WG, Steve Casner set forth a rough strawman for a real-time transport protocol and led a discussion of how it should be modified. This protocol should replace the out-dated Network Voice Protocol we are using temporarily in the packet audio programs. The goal is to have the new protocol ready for use in programs on a wide variety of platforms in time for a second audiocast from the Boston IETF. In the Telearch BOF, Eve Schooler gave a presentation on the Connection Control Protocol. Flexible management of multimedia connections will be the next big step required for packet teleconferencing to work on more than an experimental basis. Eve Schooler, Steve Casner (schooler@ISI.EDU, casner@ISI.EDU JVNCNET ------- I. General information A. How to reach us: 1-800-35-TIGER (from anywhere in the United States) by e-mail NOC: noc@jvnc.net Service desk: service@jvnc.net by mail: U.S. mail address: Princeton University B6 von Neumann Hall Princeton, NJ 08544 (Director: Sergio Heker) Cooper [Page 17] Internet Monthly Report March 1992 B. Hours NOC: 24 hours/day, seven days a week Service desk: 9:00 to 5:00 pm, M - F (except holidays) C. Other info available on-line from NICOL Telnet to nicol.jvnc.net. Login ID is nicol and no password. D. RFCs on-line To obtain RFCs from the official JvNCnet repository (two methods) ftp nicol.jvnc.net; username: nicol; password: RFC automailer Send email to sendrfc@jvnc.net. Subject line is RFCxxxx. xxxx represents the RFC number. RFCs with three digits only need three digits in the request. II. New Information A. New on-line members (fully operational February 1992) Connecticut College, New London, CT Dow Jones and Company, Princeton, NJ Hitachi America, Inc., Princeton, NJ UNIX System Laboratories, Inc., Summit, NJ Hoffmann-La Roche, Nutley, NJ Biosym Technology, Parsippany, NJ Choice Publishing, Middletown, CT Delphi Inc., Newton, MA System Design Associates, Lambertville, NJ B. JvNCnet Network System Administration Symposium The symposium held at Princeton University on April 3, 1992 focused on SendMail, Domain Name Service, and Network News. A group of network managers, system administrators, and interested members of the Internet community listened to a panel of three experts explicitly detail how to appropriately set up a new system for using the Internet. They also provided ways to streamline a user's current system. Neil Rickert of Northern Illinois University covered the role of SendMail as a Mail Transfer Agent (MTA). Mail strategies and setting up the "config" file were illustrated via on-line Cooper [Page 18] Internet Monthly Report March 1992 examples. Ed Anselmo of Yale University explained setting up and troubleshooting Cnews at a news site. Roy Marantz of Rutgers University explained how to use name servers and remedies for name service difficulties. C. JvNCnet K-12 Dial-up Connectivity Program JvNCnet is currently providing network access to the New Jersey Department of Education and several public school districts in the state. The Internet link enables students and teachers to use a variety of databases and interactive applications to complement classroom experiences and significantly expands the channel of communication for both. Teachers exchange novel ideas and instructional strategies as well as obtain expertise from diverse educational professionals and members of the academic and research communities. Children learn about peers who live in different cities or even countries, practice using a foreign language, participate in mentoring with undergraduate friends, and access the World Fact Book, NASA Space Link, or remote library card catalogs (to acquire a book through inter-library loan), all via the Internet. Montgomery, Bergenfield, Lawrence Township, Ridgewood, West Windsor-Plainsboro, Roselle Borough, and South Brunswick are exploring the network and are finding out about its wonderful stored treasures and how children are inspired and engaged using them. The potential? Students will continue communicating, searching, reading, and learning more about something they are interested in. D. Miscellaneous Please stop by the JvNCnet booth at Interop (Washington,DC) and say hello......May 20-22, 1992. E. For information about planned JvNCnet symposia, please send email to "symposium@jvnc.net" or call 1-800-35-TIGER. F. For information about the JvNCnet K-12 activities, send email toK-12@jvnc.net. To request subscription to the K-12 mailing list, send email to k12-request@jvnc.net. Rochelle Hammer (hammer@jvnc.net) Cooper [Page 19] Internet Monthly Report March 1992 LOS NETTOS ---------- Los Nettos was configured to support the IETF audio-cast of portions of the proceedings. The link from NOSC to ISI and Dartnet was used for this traffic. AGS+ router upgrades are due next month for all sites. Walt Prue (Prue@ISI.EDU) MIDNET ------ MIDnet has begun the transition to the T3 backbone by routing a portion of the traffic to the T3. We expect the transition to be completed by mid-May. MIDnet recently formed a Network Information Center and has hired Carol Farnham to manage the Center. Current membership for MIDnet totals 85, 60 members and 25 associates. Carol Farnham MITRE Corporation ----------------- Bill Barns, Kathy Dodd, Jiso Geiter, Walt Lazear, Cindy Bagwell, and Sally Tarquinio attended the IETF in San Diego. They participated in the areas of high-speed, routing, net management, and OSI. Walt presented a paper on OSI packet filtering issues to the OSI NOOP group. Kathy presented a talk on commercial net management packages to a MITRE Technical Information Exchange meeting that included several government sponsors. Later, she demonstrated several products. Kris Krishnan installed, evaluated, and demonstrated the Remedy trouble ticket system to government sponsors. John McGuthry configured a Sun's X.400 MHS product to test with a full OSI stack over the Internet to U. Wisconsin's ISODE PP implementation. This involved gaining connectivity through regionals (again) and coordinating the configurations of the two implementations. Actual message exchange will occur in early April. Walt Lazear, (lazear@gateway.mitre.org) Cooper [Page 20] Internet Monthly Report March 1992 NEARNET (NEW ENGLAND ACADEMIC AND RESEARCH NETWORK) --------------------------------------------------- NEARnet Membership NEARnet has grown to 124 members. NEARnet Trouble Ticket System The NEARnet Trouble Ticket System is now available. The system was built by Dan Long, on an Informix Relational Database running on a SUN Sparcstation. Using an Embedded-SQL (in C) package to interface to the mail system (MMDF), the Informix package front-end provides a simple method for entering and searching ticket information from the NEARnet database. The system is available via anonymous FTP on nic.near.net in the file: pub/nearnet-ticket-system-v1.2.tar. Bug reports, discussion, fixes, improvements, and questions should be addressed to: tt@nic.near.net. To join this list, mail to: tt- request@nic.near.net IETF Dan Long chaired the User Connectivity Problems (UCP) working group at the IETF in San Diego, CA. John Curran presented the NEARnet OSI Routing Plan to the OSI Network Operations (NOOP) working group. Scott Bradner gave a presentation on "NSFNET Performance" at the IETF closing session. NEARnet This Month The March 1992 issue of the electronic bulletin "NEARnet This Month" has been distributed. Past issues of the bulletin are available via anonymous FTP at nic.near.net, in the directory newsletters/nearnet-this-month. NEARnet K-12 Workshop On March 11, NEARnet and the Massachusetts Telecomputing Coalition held a workshop to develop innovative educational partnerships between NEARnet and the educators and administrators from the kindergarten through twelve grade educational community in New England. Close to 120 people attended the workshop held at Pine Manor College, in Chestnut Hill, Massachusetts. Stephen Hall, director of Harvard University's Office for Information Technology, and Eva Kampits, Academic Dean of Pine Manor College welcomed the attendees and announced the workshop as a milestone and an Cooper [Page 21] Internet Monthly Report March 1992 opportunity to improve education in New England. Beth Lowd, of the Massachusetts Telecomputing Coalition served as the moderator for the morning panel which included: Joan Gargano, of the University of California at Davis, Jan Meizel of Davis High School in California, and JoAnn Schlachter of the Board of Cooperative Education Services (BOCES) in New York. There were five simultaneous break out sessions each repeated once in the morning and once in the afternoon. The sessions included an Introduction to the Internet by Martin Huntley, Director of the South Coast Educational Collaborative's Computer Technology Center. A Technical Session was lead by Steve Kelley of the Center for Educational Leadership and Technology. Jerry Olson of Clark University lead a session which addressed the issues of building partnerships in business, higher education, and the K-12 community. Melanie Goldman of Harvard University, Joan Gargano, of the University of California at Davis, and Linda Carl of the New York State Educational Network (NYSERNET) presented models for NEARnet institutions to following in order to provide support for K-12 access to the Internet. Juliette Avots, of the Wellesley High School, JoAnn Schlachter from the BOCES in New York, and Jan Meizel of Davis High School lead a session focused on instructional application issues used in teaching The closing keynote address was delivered by Beverly Hunter of the National Science Foundation. NEARnet Information and Training Session As part of the NEARnet Program Plan for User Services, NEARnet is working with three small colleges in an effort to learn more about the needs of new members and in turn to develop an ongoing training program. On March 19, Jim Naro and Corinne Carroll participated in a NEARnet Information and Training Session at the College of the Holy Cross in Worcester, MA. The morning session included a panel presentation discussing specific areas of interest which included an examination of the benefits of an Internet connection and questions associated with the usage of the Internet, including physical computing resources, usage access levels and control, and security issues. Members of the panel included Jerry Olson of Clark University and Pete Miller, formerly of Bowdoin College. The afternoon session included an overview of the Internet and application level Internet services, such as electronic mail, anonymous file transfer, and remote login, the training concluded Cooper [Page 22] Internet Monthly Report March 1992 with a "hands-on" tour of anonymous ftp hosts. Corinne Carroll NNSC, UCAR/BOLT BERANEK and NEWMAN, INC. ---------------------------------------- The NNSC staff is working on implementing an automated call processing system for the NSFNET Hotline. This will facilitate the processing of some types of requests. The NNSC staff is also working on placing the entire newsletter online and developing PostScript versions of the sites file and new maps. A PostScript version of the revised NSF Network Newsletter map is available via anonymous FTP at nnsc.nsf.net with the pathname nsfnet/nsfmap.ps. The site list for the map is under the pathname nsfnet/sites. The paper version of the newsletter is in press. The NNSC online information collection now has ten directories, each of which corresponds to a Request: category in the Info- Server, and a directory when retrieved via anonymous FTP. calendar Events of Interest to the Internet Community iesg IETF Steering Group ietf Internet Engineering Task Force (IETF) info About the info-server internet-drafts Documents Proposed to Be RFCs isoc Internet Society (ISOC) nsfnet Documents about the NSFNET, prepared by the NNSC phonebook On-line version of the Internet Manager's Phonebook resource-guide NNSC's Own Guide to Internet Treasures rfc Official documents of the Internet Activities Board The NNSC is continuing with refinements of the screen-based interface for the WAIS system. Cyndi Mills and John Curran participated in several user services working group sessions at the IETF in San Diego, CA. Corinne Carroll Cooper [Page 23] Internet Monthly Report March 1992 NORTHWESTNET ------------ On March 12, Executive Director Eric S. Hood testified before the U.S. House Subcommittee on Science in a hearing on the management and evolution of the NSFNET. On behalf of FARNET he addressed issues related to the recompetition of the NSFNET backbone and development of the NREN. Hood was also the keynote speaker for the University of Washington Computer Fair. His speech, entitled "Networking the Nation" focused on the past, present, and future of the NREN. NorthWestNet would like to welcome two new staff members, Tony Naughtin and Carol Brand. As Manager of Client Services, Tony will focus his efforts on managing new member accounts. Carol, as Educational Documentation Specialist, will be responsible for educational training and documentation development. Work continues toward the publication of the Fourth Edition of the NorthWestNet User Services Internet Resources Guide (NUSIRG). Jonathan Kochmer, our Educational Services Specialist, is updating and developing the guide, which is scheduled for publication in the autumn of 1992. NorthWestNet 15400 SE 30th Place, Suite 202 Phone: (206) 562-3000 Bellevue, WA 98007 Fax: (206) 562-4822 by Schele Gislason NSFNET/ANSNET BACKBONE ENGINEERING ---------------------------------- T3 Network Status ================= The T3 network remains very reliable and during the month of March it carried 5.8 billion packets. During March we cut traffic over to the T3 system from NASA (FIX-E), JVNCNet, and MidNet. A new T3 ENSS was installed at FIX-W. Installation of the T1/T3 interconnect gateway at Princeton was completed, to act as a backup for the Ann Arbor interconnect. The T3 link between Chicago and Palo Alto was re-routed to reduce the overall circuit distance and network latency during March. A temporary T3 ENSS was installed at the National Net'92 conference in Washington D.C. to support several application demonstrations including a packetized video application. Interactive videoconferencing sessions were sustained Cooper [Page 24] Internet Monthly Report March 1992 across the T3 network between MCNC in North Carolina and the Net'92 conference in Washington. There are several T3 BGP routing software enhancements that were developed and tested during March for deployment in April. These include interpretation of different Inter-AS external metrics, improved version negotiation, and improved aggregation of networks into a single update. We have encountered a few T3 problems during March. There is a memory leak bug in the SNMP daemon running on the T3 nodes that causes a very slow increase in memory utilization over time. This has caused some nodes to suffer from problems wih paging space, and route daemon problems. A workaround has been applied until a bug fix is provided for this. We have had several RS6000 FDDI adapter problems during March where the adapter will freeze. We experienced this at Pittsburgh following a facilities problems that caused high temperature conditions. We have also observed similar intermittent FDDI adapter problems at San Diego (ENSS135), Champaign (ENSS129), and Palo Alto (ENSS128). Each of these adapters has been replaced. We expect to replace all RS6000 FDDI adapters with a new higher performance/reliable adapter during the summer. We have also experienced an RS6000 ethernet interface freeze problem at Pittsburgh and FIX-E. We have replaced both of these interfaces and will deploy a microcode bug fix to all ethernet adapters during April. T1 Network Status ================= During March we continued to support changes on the T1 system to reduce congestion and stability problems. Although we have migrated a large fraction of traffic to the T3 system, we are still observing stability problems due to increased routing complexity and CPU problems on several RCP nodes. As we add more networks to the T3 system we re-announce these networks to the T1 system at the interconnect gateways. The IS-IS link state packet size being computed is now over 25Kbytes at several locations. Additionally the T1 network is supporting over 10 EGP peers at several locations which increases the load on the RCP nodes. RCP-13-1 at Palo Alto has suffered the most during March. These routing problems are independent of traffic load on the PSP nodes. We have made several changes to alleviate these problems. First, we have implemented some performance improvements in the T1 routing software and improved the coding efficiency of the T1 network LSP Cooper [Page 25] Internet Monthly Report March 1992 packets to reduce the size. The performance improvements have been deployed and the LSP packet size compression will be deployed in April. We have also upgraded several RCP nodes with faster RT/PC processor cards. These cards will improve the RCP CPU performance by about 30%. Phase-III T3 Network Upgrade Plan Summary ========================================= ANS & Merit are planning a major upgrade to the ANS/NSFNET T3 backbone service beginning in late April which is scheduled to complete at the end of May. The upgrade involves changing all of the T3 interface adapters in the RS/6000 T3 routers as well as the DSUs. The new T3 adapter (called RS960) supports on-card packet forwarding which will dramatically improve the performance, as packet forwarding will not require support by the main RS6000 CPU. The mechanism used will allow a T3 adapter to send data directly to another adapter across the RS6000 bus. The reliability of the new RS960 adapter is much greater than the existing T3 adapter (known as "Hawthorne T3 adapter"). We will also upgrade the DSU to provide "C-bit parity" over the T3 links. C-bit parity (based on ANSI T1.107A spec.) will provide improved end-to-end real-time link level network management information. C-bit parity is conceptually comparable to Extended Super Framing (ESF) over T1 circuits. Other minor changes on the router include the replacement of the fan, the I/O planar card, and associated cabling to support the adapter upgrade. The result of this upgrade will be higher speed packet switching and increased SNMP functionality, better T3 link monitoring, higher T3 router reliability and availability, better diagnostic and repair capability as well as improved statistical monitoring support. The deployment of this upgrade will temporarily affect T3 network connectivity while the core node (CNSS) and end node (ENSS) routers are upgraded. In order to minimize down time, all nodes will be upgraded during off-hours on weekends. The target start date for the phase-III upgrade is April 24. This is contingent upon successful completion of the test plan described below. Implementation of the deployment is planned to cover six steps, each step taking place over a Friday night/Saturday morning 8 hour window. Each step will correspond to the upgrade of all CNSS's located at two adjacent POPs and all of the T3 ENSS nodes supported by those CNSS's. T3 network outages at NSFNET midlevel T3 network sites are expected to average 2 hours per step, although Cooper [Page 26] Internet Monthly Report March 1992 we have provisioned an 8 hour window to accomplish the upgrade to the T3 ENSS and adjacent CNSS nodes. NSFNET T3 midlevel networks will be cut over to the T1 backbone prior to the scheduled upgrade and will remain on the T1 until the affected nodes are upgraded and network reachability has been successfully re-established. During the outage period where the T3 CNSS routers are upgraded (expected to be 2 hours), traffic from other T1 and lower speed ENSS nodes, as well as T1 CNSS transit traffic will be continue to be routed via the T1 safetynet circuits. All upgrades will start on a Friday night, with a starting time of approximately 23:00 EST. There will be two exceptions: changes to the Denver and Cleveland facilities will be starting at approximately 24:00 local time. Each CNSS site should take about 8 hours to complete, with the exception of the New York City core node. At the New York City site, we will also be physically moving the equipment within the POP and expect this move to add about 4 hours to the upgrade there. Although each upgrade is expected to require 8 hours to complete, we are reserving the entire weekend, approximately 23:00 local time on Friday to 24:00 local time on Sunday, for possible disruptions to service. This window will allow enough time to debug any unforeseen problem that may arise. A second visit to core nodes will be required to replace a single remaining old-technology T3 adapter. This will result in a T3 outage of approximately 105 minutes at sites as indicated below. We have established a tentative upgrade scheduled which is contingent upon successful completion of all testing (described below). The current upgrade schedule has been distributed to the regional technical liasons. It is anticipated that with the exception of the T3 ENSS indicated site outages other ENSS nodes and transit traffic services will be switched across the safetynet and T1 CNSS concentrators during the upgrades. However brief routing transients or instabilities may be observed. NSR messages will be posted 48 hours in advance of any scheduled changes and questions or comments on the schedule or plan may be directed to the ie@merit.edu mailing list. T3 Research Network RS960 Test Plan and Experiences =================================================== This upgrade is the culmination of several months of development and lab and network testing of the new technology. Many of the problems identified during the deployment of the phase-II T3 network have been corrected in the new hardware/software. A summary of the experiences we have had with this technology on the Cooper [Page 27] Internet Monthly Report March 1992 T3 Research network is described below. ANS/Merit and their partners maintain a full wide area T3/T1 Research network for development and testing of new hardware, software, and procedures prior to introduction on the production networks. The T3 Research network includes 3 core node locations with multiple fully configured CNSS routers. There are 5 ENSS sites at which we maintain full T3 ENSS routers as well as local ethernet and FDDI LANs that interconnect multiple peer routers and test hosts. These test network is designed to emulate the production network configuration as much as possible. The wide area Research network interconnects with multiple testbeds at each of the 5 ENSS locations. These testbeds are configured to emulate regional and campus network configurations. General Testing Goals and Methods --------------------------------- Unit and system testing of all phase-III technology is conducted first in the development laboratories, and then regression tested on the development testbeds at each of the participating sites. The primary goal for testing of the phase-III technology on the T3 Research network is to determine whether the new technology meets several acceptance criterion for deployment on the production network. These criterion include engineering requirements such as routing, packet forwarding, manageability, and fault tolerance. They also include regression testing against all known problems that have been corrected to date on the T3 system, including all of its components. The following are secondary goals that the test plan includes: 1. To gain experience with new components so that the NOC and engineering staffs can recover from problems once in production. 2. To identify any problems resulting from attempts to duplicate production network traffic load and distributions on the Test Network. 3. To perform load saturation, route flapping, and other stress tests to measure system response and determine failure modes and performance limits. 4. To duplicate selected system and unit tests in a more production-like environment. 5. To design and execute tests and that reflect "end-user perceptions" of network performance and availability. Cooper [Page 28] Internet Monthly Report March 1992 6. To isolate new or unique components under test to evaluate new criterion or performance objectives for testing those specific new components. Regression testing against the entire system is also emphasized. 7. To independantly evaluate the validity of specific tests to ensure their usefulness. Phase-III Components to be tested ================================= The RS960 interface upgrade consists of two new hardware components: 1. RS960 DS3/HSSI interfaces 2. New T3 DSU adapters a. Communication card with c-bit parity (ANSI T1.107A) b. High Speed Serial Interface (HSSI) interface card (HSSI - Developed by Cisco & T3plus Inc. is defacto standard comparable to V.35 or RS-422). There will be several new software components tested for the target production network AIX 3.1 operating system level: 1. RS960 DS3 driver & kernel modifications 2. SNMP software a. SNMP Daemon, DSU proxy subagent b. T3 DSU logging and interactive control programs 3. RS960 adapter firmware 4. New RS960 utility programs for AIX Operating System a. ifstat - Interface statistics b. ccstat - On-Card Statistics General Areas Tested ==================== The following areas comprise the areas where test objectives a are exercized. Extensive testing is done to ensure that we meet these objectives. 1) Packet Forwarding a. Performance and stress testing b. Reliability under stress conditions Cooper [Page 29] Internet Monthly Report March 1992 2) Routing a. Focus on consistency of routes - across system tables and smart card(s) tables - after interface failure - after network partitioning - after rapid node/circuit/interface transitions - under varying traffic load conditions b. Limit testing - determine limits on: - number of routes - number of AS's - packet sizes - number of networks - number of nets at given metric per node - system behavior when these limits are exceeded c. Interoperability with Cisco BGP testing 3) System monitoring via SNMP a. RS960 hardware, driver, microcode b. DSU functions, C-bit parity end-to-end connectivity and performance 4) End to End Tests a. Connection availability - does TCP connection stay open in steady state? b. Throughput - measure throughput on host to host connection through network c. Delay - measure packet delays from user point of view - observe round trip, and unidirectional delays d. Steady State Performance - evaluate effect on TCP connection due to network changes 5) Unit Test Verification a. Repeat selected regression tests performed by development b. Exercize DSU functions - measure packet loss - perform loopback tests c. Induce random & deterministic noise into circuits and evaluate interface hardware/software response 6) Deployment Phase Testing a. Test all machine configurations that will be used during the deployment transition phases b. Measure throughput under production load across transitional configurations (RS960 T3 <-> Hawthorne T3 path) Cooper [Page 30] Internet Monthly Report March 1992 7) NOC Procedure Testing a. During testing, identify all possible failure modes b. Install & document specific recovery procedures c. Train NOC staff on test network Phase-III Test Experiences and Results To-Date Summary ====================================================== Testing is scheduled to continue up until 4/17. We will then freeze the test network in preparation for deployment on 4/24. Testing will continue throughout the deployment. Overall Testnet Observations ---------------------------- The performance of the RS960 technology is far superior to that of the existing Hawthorne T3 adapter technology. Although peak performance throughput tests have not yet been conducted, the steady state performance for card-card transfers has been measured in excess of 20KPPS with excellent stability. During the early deployment of the RS960 and DSU technology on the testnetwork, we observed several new transmission facility problems that were not observed in the lab tests, or in earlier DS3 adapter tests. We found a new form of data pattern sensitivity where under certain conditions the new DSU can generate a stream of 010101 bits that induce an Alert Indicator Signal (blue alarm) within the MCI network. The RS960 and existing Hawthorne T3 card do not interoperate over a serial link. However they will interoperate if both are installed within a single CNSS node using specially developed driver software which uses the main RS6000 CPU for packet forwarding between the RS960 and Hawthorne T3 cards. As part of the phase-III migration period we had originally planned to support an interim CNSS configuration of 3xHawthorne T3 adapters and 1xRS960 adapter as well as a 1xHawthorne T3 & 3xRS960 T3 interim CNSS configuration. Unfortunately during the performance tests we determined that the 3xHawthorne T3 & 1xRS960 T3 configuration creates a performance bottleneck that could cause congestion under heavy load. This is due to the interim state RS960 <-> Hawthorne interface software driver bottlneck where the main RS6000 CPU is used for packet forwarding between dis-similar adapters. We have therefore eliminated this configuration from the deployment plan and will support only the 1xHawthorne, 3xRS960 configuration as an interim state during the deployment. We are also looking various deployment strategies that will avoid any congestion across an interim RS960<->Hawthorne path. These strategies include interior Cooper [Page 31] Internet Monthly Report March 1992 T3 link metric adjustment, safetynet link load splitting, careful placement of these transition links to avoid hot-spots, or temporary addition of new DS3 links that will short-cut these transition links. We are using something called a copy tool that was developed as a host system that interfaces on a production network ethernet, and test network ethernet whereby all production ethernet packets are promiscuously copied on the host, given a new destination address, and injected into the Research network to simulate production traffic flows within the Research network. We have found a bug in the copy tool that has caused problems on the test ethernets at a couple of Research network locations. Everytime the copy tool is re-booted, we experience congestion on the test ethernets due to an erroneous broadcast of a copied packet onto a test ethernet. We are fixing this problem before we run these tests again. We have run numerous route flapping tests where will install and delete routes repeatedly on all installed RS960 cards and have not encountered any chronic problems so far. The installation and deletion of 6000 routes on the card is fast enough that we can not measure an inconsistencies between different on-card route tables. We have compiled a limit of 6000 routes on the card for now since this reflects the deployment configuration, however we can support up to 14000 IP routes on the card if necessary. We have opened and closed over 100 problems during the several months of lab and Research network testing on RS960. There are currently 14 open problems remaining from our tests to date and we can provide some details on this for anyone interested. We have fixes for most of these problems that will be regression tested on the Research network next week. We expect to close these problems prior to deployment of RS960 on 4/24. NSFNET/INFORMATION SERVICES --------------------------- Networks configured for announcement on the NSFNET infrastructures number 4,976 at the end of March, 1992. Of this total, 2,721 networks are configured for announcement on the T3 backbone, and 1,697 networks are located outside of the United States. March packet traffic on the NSFNET is discussed in the NSFNET/ANSNET Backbone Engineering report to the Internet Monthly Report. The March meeting of the IETF in San Diego, CA was well attended by Merit/NSFNET staff: Ellen Hoffman and Pat Smith of Information Services; Jessica Yu, Elise Gerich, Sue Hares, and Mark Knopper of Internet Engineering; Dale Johnson and Andrew Adams of Network Cooper [Page 32] Internet Monthly Report March 1992 Management Systems. Hoffman and Smith continued their activities as co-chairs of their respective User Services working groups, and Yu chairs the BGP Deployment working group. Hares, Gerich and Yu also participate in the Routing and Addressing (ROAD) working group. Gerich was the Merit Internet Engineering representative to the IEPG, which also convened in San Diego. Ken Horning of Merit spoke at the Online Computer Library Center (OCLC) in Dublin, Ohio. "NREN: Light at the end of a long tunnel," a one-day conference, was sponsored by OhioNet and attended by librarians and information services staff from several midwestern states. Horning presented an overview of the NSFNET project, including recent network use statistics, as well as highlighting the role the NSFNET is envisioned to play in the evolving National Research and Education Network (NREN). The Coalition of Networked Information held the Spring 1992 Meeting of the Coalition Task Force in Washington, DC. Ellen Hoffman, manager of Merit/NSFNET Information Services, and Laura Kelleher participated in the various sessions. The TopNode Internet directory project was officially announced at the proceedings. Merit will be working with Indiana University on TopNode, with responsibilities to include sharing knowledge about network resources, assisting in the gathering of such information, and creating an X.500 version of the TopNode directory. In keeping with the meeting theme, "Network Navigating and Navigators," Merit Network, Inc. introduced its "Cruise of the Internet," with the gracious cooperation of CNI. The "Cruise" is an interactive instructional guide to the Internet. The Introduction section compares the Internet to an ocean. In the Navigation Tools section, some of the tools which can help navigate the Internet (e-mail, FTP and Telnet) are introduced. The Applications section includes several examples of how people are using Internet resources and how to access those resources. Created by Steve Burdick of Merit Network, Inc. using MacroMind Director for the Macintosh, the Cruise is based on a presentation written by Laura Kelleher and Mark Davis-Craig, also of Merit. A Windows version is being planned. The beta version (1.0.B) of Merit Network's "Cruise of the Internet" is being distributed without charge for evaluation and use. The Cruise is available for anonymous FTP as a self-extracting archive (.sea). To extract the Cruise and run the presentation, system requirements are: A Macintosh II or Quadra series computer 8-bit color and any color monitor (13" minimum recommended) Cooper [Page 33] Internet Monthly Report March 1992 System 6.07 or 7.x Approximately 2 MB of disk space 4 MB RAM recommended The Cruise is available via anonymous FTP from nic.merit.edu as /internet/resources/merit.cruise.sea.hqx The READ ME file is available separately as /internet/resources/merit.cruise.readme.txt Merit is interested in what you think of this presentation and how you might want to use it. Please send your comments via e-mail to cruise-feedback@merit.edu National Net '92, "Advancing the Leading Edge," convened at Loews L'enfant Plaza Hotel in Washington, D.C. March 25-27. The NSFNET partnership provided connectivity for several demonstrations. Phil Hirt of the Merit Network Systems Hardware Support group deployed and managed the LAN. Bill Norton, of Merit's Network Management Systems group, demonstrated "discoveryRover," one of the primary tools used by the Merit NOC to monitor the NSFNET and written by Norton. The demonstration showcased the graphical interface to Rover which builds the topology display of the network from a network status file. Node and link state changes are reflected in color changes on the X Windows-based display. Merit/NSFNET and FARNET hosted "The Internet in Action," an exhibition of tools to navigate Internet resources, including WAIS, Gopher, Cleveland Freenet, and Merit's "Cruise of the Internet." Attending on behalf of the Merit/NSFNET Project were Eric Aupperle, President of Merit Network, Inc.; Jim Williams, Merit Associate Director for National Networking; Ellen Hoffman, manager Merit/NSFNET Information Services; Steve Burdick, Laura Kelleher and Pat Smith, Information Services; Mark Davis-Craig and Dana Sitzler, Merit Technical Support Group; Elise Gerich, Internet Engineering and Bill Norton, Network Management Systems. Kelleher presented the Cruise of the Internet program at "NSI Networking in the Nineties," the Third Annual NASA Science Internet User Services Working Group meeting held in Greenbelt, MD, March 30 - April 3. "Making Your NSFNET Conection Count," a Merit Networking Seminar, is scheduled for June 1 & 2 in Las Vegas, NV. Scholarships are still available to the conference featuring presentations by Donna Cox, NCSA; Art St. George, UNM; Tom Grudner, NTPN; and George Brett, MCNC. To receive the agenda and registration details, send electronic mail to seminar@merit.edu or call 1-800-66-MERIT. Jo Ann Ward (jward@merit.edu) Cooper [Page 34] Internet Monthly Report March 1992 PREPNET ------- PREPnet had 3 new members during the month of March bringing the total to 73. Childrens' Hospital of Philadelphia will be connecting to the Philadelphia hub and Inforum, Inc. to the Allentown hub. DataSource Information Services will be available through the connection to Telebase Systems. Executive Director, Tom Bajzek, attended NET92. Marsha Perrott participated in IETF. PREPnet NIC (prepnet+@andrew.cmu.edu) PITTSBURGH SUPERCOMPUTER CENTER ------------------------------- The PSC is proud to announce the arrival of our next generation of massively parallel computer, the Thinking Machines Connection Machine, CM-5. The new machine currently with 4 gigabytes of memory distributed among it's 256 processing nodes, has the most memory of any machine currently available to the users of the NSF centers. Plans for future expansion of the machine include floating point pipelines and a doubling of the memory that will enable it to do 32 gigaflops. We established a live video link to the site where the CM-5 was installed so that we could view the install back at home. The system consisted of a Sony Camera attached to a Sun Sparcstation 1+ at the install site that communicated via ethernet and fiber to another Sun at our home site. This second machine multicasted to workstations locally, reducing the redundancy of information pumped over the long haul. Matt Mathis, Gene Hastings and Ken Goodwin took part in this month's IETF meetings in San Diego. Matt presented his work with BGP Usage at the PSC to the BGP Ultilization Session. Gene chairs the Network Joint Management group and moderates the Network Status Reports group. He also participated in the User Connectivity, Operations Area Directorate, Internet School Networking and BGP Utilization groups. Ken participated in the Op-Stats and Router Performance Measurement working groups. Gene attended the FARNET workshop on the hardening of the Internet in February. The group plans to produce a report and set of recommendations to the NSF. Gene agreed to take part in a committee that will produce the final report from notes taken during the meetings. Also in February, Gene and Ken attended Cooper [Page 35] Internet Monthly Report March 1992 Merit's Advanced Topics Seminars. Recent additions to and requests for Internet connectivity through the PREPnet regionals include: The Community College Of Allegheny County, Shadyside Hospital, Palinet, Albright College, Biological Detection Systems, Ansoft Corporation, Messiah College, Transarc Corp., Temple University and Children's Hospital of Philadelphia. by Stephen Cunningham SAIC ---- We have started planning for the IDPR gated experiment. We have contacted MITRE to see if they will be able, like before, to to provide us with their Internet test environment. We also have responses from several users on the Internet who would like to participate in the experiment. We would like to include as many users as possible, and we are looking for ways to change gated implementation to support a "half-gateway" configuration. This will enable one physical gateway to act as an IDPR virtual gateway (VG), and hence reduce the number of resources, at one site, required for the experiment. We have had discussions with Mark Sleeper to identify how to incorporate network management experiments. We have concluded that the code previously written for the management agent needs to be revised for interface to the IDPR gated module. We will decide later what parameters in IDPR want agent to control. The original agent was CMIP based, however the GATED implementation of IDPR will mostly likely use SNMP, since the SMUX support is readily available. One path being pursued is a CMIP agent that will use SNMP based access routines. Z. Avramovic has written a position paper, currently under review by D.Mills, that suggests some reduction of IDPR complexity. She is also analyzing CLNP and ENCAPS, two proposals forwarded to the IETF, that suggest ways to augment or change Internet address space. The purpose of the analysis is to determine how compatible is IDPR architecture with either of the proposals. Integration of the VGP module was begun, however there is some mismatch between the old VGP code and the new BBN database that requires some creative use of the database information and the addition of some functions. However, the overall performance of the GATED implementation will still be greatly enhanced by having the single common database. The VGP as well as the CMTP code has been modified, but remains untested. Cooper [Page 36] Internet Monthly Report March 1992 Planned Activities: The complexity of the ISODE SMUX interface is still being investigated. By the end of April we will have decided whether or not we will use it. It appears that it should be fairly simple to use, but the documentation is somewhat sketchy. Chi Chu will update the IDPR kernel interface to support source policies and will now use ioctl's rather than syscall's to provide a more portable implementation. Woody Woodburn will be working on the user level portion of the GATED implementation. Once VGP has been tested, the SETUP module is the next candidate for integration. Woody (woody@sparta.com) SESQUINET --------- Local Installations SESQUINET expanded to 37 member institutions with the addition of South Coast Computing Services. The Texas State Technical College is scheduled to be installed in April. SESQUINET has designated Waco, TX as its 5th hub site. Services SESQUINET is now serving as an RFC repository. RFC's are available from FTP.SESQUI.NET in the pub/rfc directory. SESQUINET is planning to implement OSI/CLNP routing and has received a block of registered addresses from the GSA. Please contact hostmaster@sesqui.net for additional information. Other News Bill Manning was SESQUINET's representative to the 23rd IETF. Members of the SESQUINET staff attended a joint meeting with THEnet to discuss routing coordination, system software release levels and upgrade planning, and DECNet/OSI planning. by Evan Wetstone Cooper [Page 37] Internet Monthly Report March 1992 UCL ---- A proposal for multimedia international services was circulated in more polished form. IETF Attendance - Steve Hardcastle-Kille and Peter Kirstein attended the IETF in person. Jon Crowcroft, Ian Wakeman and a cast of several from Cambridge University and Edinburgh University attended as part of the impressive Steve's Casner/Deering vat multicast to ISI/BBN/DARTNET/OZ etc. UCL contributed the Multicast Assistance Sender/Helper to forward UDP over parts of the Internet that cannot adequately perform this function with Loose Source Routed IP. MASH has been upgraded to take multicast packets and route them to multiple unicat destinations (and vice versa!). It is ill-advised to use it where loops may form! We also successfully demonstrated medium speed colour video conferenceing across (2Mbps) Janet to the annual Networkshop in Leeds, with mono slow scan and audio again from London and to Cambridge (Cambridgeshire). As part of a related excerscise, we ran H.261 video between here and the British Telecom Labs in Ipswich, with IP routers carrying other media over a separate B channel. Note that we are now starting to field multicast as part of the UK JANET IP Service infrastructure (albeit experimentally). We are anxious that router vendors start supplying this as a normal function. Two papers were published in ACM CCR: Wang, Z., Crowcroft, J., "Eliminating Periodic Packet Losses in the 4.3-Tahoe BSD TCP Congetion Control Algorithm", ACM CCR, Vol 22, No 2, April 92. Wang, Z., Crowcroft, J., "Analysis of Shortest Path Routing Algorithms in a Dynamic Network Environment", ACM CCR, Vol 22, No 2, April 92. John Crowcroft (j.crowcroft@CS.UCL.AC.UK) Cooper [Page 38] Internet Monthly Report March 1992 UNIVERSITY OF DELAWARE ---------------------- February 1992 Report 1. Our packet-audio/video gear is working well and we are getting used to having it around. Work is getting under way on studying the networking-specific issues and, in particular, on distributed algorithms for managing state and resource commitment in the routers. 2. The problem that has prevented reliable acquisition of WWVB time signals here has still not been found. FCC monitoring stations in Maryland and Maine report identifying the critter and locating it roughly in Quebec(!), but reports from New England sites claim a clear signal and no problem acquiring reliable time. I have concluded the FCC guys are chasing the wrong bandit and in fact, the critter is nearby. 3. Work continues on checkout of the NTP Version-3 time daemon implementation for Unix. It is now running on all net-128.4 munchkins here and on the DARTNET router at ISI, as well as a number of alpha sites widely scattered on the globe. Because of the problem noted above, DARTNET time service was rehomed to ISI, where the WWVB signals appear to be clear. March 1992 Report 1. The nice folk at Bancomm have loaned us a new product combining a packaged GPS receiver and NTP primary time server in a suitcase. Unfortunately, they forgot about gateway support, so it talks only to our net-128.4 munchkins at present. They are to fix that soon. 2. Our experimental, computer-controlled, LORAN-C receiver has completed evaluation tests and measurements. A comprehensive report, including analysis and design methodology, test results, program listings and schematics, lurks in pub/ntp/loran.tar.Z on louie.udel.edu. 3. We have liberated a Sun IPC to replace our four aging Fuzzball time servers dcn1/2/5/6.udel.edu. Work is in progress to rack-mount it and all our time machinery and resolve the pesky problem of WWVB interference. Cooper [Page 39] Internet Monthly Report March 1992 4. A preliminary (beta) distribution of the NTP Version 3 daemon for Unix is in pub/ntp/xntp3.tar.Z on louie.udel.edu. This distribution is intended for experimental use only and should not be used for production service. 5. After one last, painstaking review and incorporation of minor amendments, the NTP Version 3 specification document has been submitted to the RFC Editor. Dave Mills (Mills@UDEL.EDU) Cooper [Page 40] Internet Monthly Report March 1992 DIRECTORY SERVICES ------------------ This section of the Internet Monthly is devoted to efforts working to develop directory services that are for, or effect, the Internet. We would like to encourage any organization with news about directory service activities to use this forum for publishing brief monthly news items. The current reporters list includes: o IETF OSIDS Working Group [included] o IETF DISI Working Group [no] o Field Operational X.500 Project [included] - ISI [included] - Merit [no] - PSI [no] - SRI [included] o National Institute of Standards and Technology [no] o North American Directory Forum [no] o OSI Implementor's Workshop (OIW) [included] o PARADISE Project [no] o PSI DARPA/NNT X.500 Project [included] o PSI WHITE PAGES PILOT [included] o Registration Authority Committee (ANSI USA RAC) [no] o U.S. Department of State, Study Group D, [no] MHS Management Domain subcommittee (SG-D MHS-MD) Tom Tignor (tpt2@isi.edu) DS Report Coordinator IETF OSIDS WORKING GROUP ------------------------ The OSI-DS group met at San Diego in three action-packed sessions and made vast progress. A fuller report is forthcoming (in April.) Steve Hardcastle-Kille (s.kille@cs.ucl.ac.uk) FOX -- FIELD OPERATIONAL X.500 PROJECT -------------------------------------- The FOX project is a DARPA and NSF sponsored effort to provide a basis for operational X.500 deployment in the NREN/Internet. This work is being carried out at Merit, NSYERNet/PSI, SRI and ISI. ISI is the main contractor and responsible for project oversight. Cooper [Page 41] Internet Monthly Report March 1992 ISI --- ISI is experimenting with some of the DUAs developed by people involved in X500. Our focus has been to learn which models are simple and lightweight enough to appeal to non-Directory- Services people. So far, the whois-based applications look to be the most promising. Tom Tignor (tpt2@ISI.EDU) SRI ---- No Internet-related progress to report. Ruth Lang (rlang@nisc.sri.com) OSI IMPLEMENTER'S WORKSHOP (OIW) -------------------------------- Since its last contribution to the Directory monthly report, the OIW Directory Services SIG has met twice, once in December and once in May. SIG work in December focused on wrapping up 1991 work items, moving profile text into Version 5 of the Stable Implementation Agreements (SIA). Most of the newly stable text pertains to 1992 Directory extensions for Replication (the new X.525 | 9594-9). It defines a number of conformance classes for support of shadowing by implementations, clarifies error handling in the new shadowing protocol (DISP), and outlines a number of recommend practices for shadowing DSAs. SIG work in Directory access control per the 1992 extensions has mostly been overtaken by the effort in the standards arena to incorporate specific error handling into the base amendments, hence there is no significant body of working text on access control within the SIG. A subgroup focusing on distributed operations has made twofold progress -- first, it has worked to incorporate profiles on distributed operations into SIA v.5 as of the March OIW; second, it has been assisting with the definition of OSINET interoperability test suites. Also in March, the SIG repositioned itself to devote significant effort to International Standardized Profiles (ISPs) for the Cooper [Page 42] Internet Monthly Report March 1992 Directory. ISPs are essentially alignments of certain core areas of the Directory profile between the OIW and the other two regional workshops (Europe and Asia-Oceania), and once agreed upon they are published as ISO documents. John Dale from Corporation for Open Systems has been acting as ISP editor on the SIG's behalf. The current target for ISP draft submission in all areas is late 1992. Further work in editing/reviewing ISPs will take place at the SIG's next meeting in June, but there is a meeting planned between ISP editors from all three workshops for this May in Ottawa, Ontario (in conjunction with the ISO/IEC SC21 conference at the same location). A working group aimed at profiling schema extensions in the 1992 edition of the Directory standard met for the first time at the SIG's March meeting, and their work is expected to continue, with any profile text on schema extensions becoming stable by the end of the year. Another March meeting activity was joint discussion with the MH (X.400) SIG, focused on providing support for MHS use of the Directory, and on where such support is lacking between 9594- 6|X.520, 10021-2|X.402, and the respective SIA, taken together. No Workshop action has yet resulted from this, but a contribution from the European workshop on attribute support for MHS will be reviewed in further joint discussion between the two SIGs in June. Finally, it is noteworthy that in 1992, US GOSIP will for the first time include text on Directory Services. This text, which cites the SIG's Stable Implementation Agreements on Directory, is expected to be drafted by NIST in the very near future. As a footnote, both Working and Stable Implementation Agreements, for Directory Services (Part 11) and other protocols, are now available for anonymous FTP at osi.ncsl.nist.gov, in both WordPerfect and ASCII format. Effort to make them available in PostScript format as well should bear some fruit shortly. Ken Rossen (kenr@isc.com) PSI DARPA/NNT X.500 Project --------------------------- In response to bug reports from early testers of the software used to load DNS zone files into the DIT, changes were made to the software. Cooper [Page 43] Internet Monthly Report March 1992 PSI participated in Directory Services activities at the IETF meeting in San Diego. The software to generate NADF KAN updates was completed. Comments about the KAN update procedure and the update format were fed back to the NADF based on implementation experience. In response to comments about the initial draft of the Lightweight Directory Browsing Protocol received at the IETF meeting (above), this document is currently undergoing revision. Wengyik Yeong (yeongw@psi.com) PSI WHITE PAGES PILOT PROJECT ----------------------------- No new developments to report this month. Wengyik Yeong (yeongw@psi.com) Cooper [Page 44] Internet Monthly Report March 1992 CALENDAR -------- Readers are requested to send in dates of events that are appropriate for this calendar section. 1992 CALENDAR Apr 6-16 CCITT SG VII Geneva, Switzerland Apr 21-23 ANSI X3S3.3, Mountaon View, Ca. May 4-6 ANSI X3T5 May 4-8 DECUS '92, Atlanta, GA May 4-8 IEEE INFOCOM'92, See IEEE Pub., Florence, Italy May 11 T1E1, Physical Layer Interfaces (ISDN, T1, Broadband, etc.) Williamsburg, VA, Bell Atlantic May 12-14 Joint Network Conference 3, Innsbruck, Austria (this is the RARE Networkshop - renamed) May 13-15 Third IFIP International Workshop on Protocols for High Speed Networks, Stockholm, Sweden Contact: Per Gunningberg, per@sics.se Bjorn Pehrson, bjorn@sics.se, Stephen Pink, steve@sics.se May 18-25 INTEROP92, Washington, D.C. Dan Lynch (dlynch@interop.com) May 19-29 ISO/IEC JTC 1/SC 21, Ottawa, Ontario, Canada May 27-29 IFIP WG 6.5 Int'l Conference on Upper Layer Protocols, Architectures and Applications Vancouver, Canada plattner Gerald Neufeld Jun 8 T1M1, Management and Maintenance (ISDN, Broadband, Frame Relay, etc.) Minneapolis, MN, ADC TElecom Jun 8-12 OIW, NIST, Gaithersburg, MD Jun 10-11 RARE WG1, tentative-Location unknown Jun 11-12 RARE COSINE MHS MGR, tentative-Location unknown Jun 14-17 ICC-SUPERCOMM'92, Chicago, IL. See IEEE Publ.. Jun 15-19 INET92, Kobe, Japan Jun Murai (jun@wide.ad.jp), KEIO University Elizabeth Barnhart (barnhart@educom.edu) "North America Contact" Jun 16-18 ANSI X3S3.3, Minneapolos, MN Jun 22-25 PSTV-XII, Orlando, Florida Umit Uyar, ATT Bell Labs, Jerry Linn, NIST Cooper [Page 45] Internet Monthly Report March 1992 Jun 29-Jul 1 Fourth Workshop on Computer-Aided Verification (CAV 92); see Sigact News, Vol, 22 No. 4 Montreal Canada G. Bockmann: bochmann@iro.umontreal.ca Jul 6-10 IEEE802 Plenary, Bloomington, MN Jul 13-17 ANSI X3T5 Jul 13-24 ISO/IEC JTC1/SC6, San Diego, CA Aug 2 T1S1, Call Control and Signaling (ISDN, Frame Relay, Broadband ATM) Aug 16 T1S1, Call Control and Signaling (ISDN, Frame Relay, Broadband ATM) Aug 17-20 ACM SIGCOMM '92, Baltimore, Maryland Deepinder Sidhu Aug 24-27 CONCUR '92 -- Third Int'l Conference on Concurrency Theory (Paper deadline March 1, 1992) Rance Cleaveland (rance@csc.ncsu.edu) Scott Smolka (sas@sunysb.edu) Stony Brook Sep 7-11 12th IFIP World Computer Congress Madrid, Spain; Contact: IFIP92@dit.upm.es Sep 14-18 ANSI X3T5 Sep 21-25 OIW, NIST, Gaithersburg, MD Sep 22-24 ANSI X3S3.3, Boston, MA Sep 28-30 5th IFIP International Workshop on Protocol Test Systems (IWPTS), Montreal, Canada iwpts@iro.umontreal.ca Oct 12-16 FORTE'92, Lannion, France Roland Groz (groz@lannion.cnet.fr) Michel Diaz (diaz@droopy.laas.fr) Oct 26-30 INTEROP92, San Francisco Dan Lynch (dlynch@interop.com) Oct 28-29 NETWORKS '92, Trivandrum, India S.V. Raghavan (raghavan@shiva.ernet.in) Nov 9-13 ANSI X3T5 Dec ANSI X3S3.3, Boulder, CO Dec 6-9 GLOBECOM '92, Orlando, Florida (See IEEE Publications) Dec 7-11 DECUS '92, Las Vegas, NV Dec 14-18 OIW, NIST, Gaithersburg, MD 1993 CALENDAR Mar 8-12 INTEROP93, Wasington, D.C. Dan Lynch (dlynch@interop.com) Mar 8-12 OIW, NIST, Gaithersburg, MD Cooper [Page 46] Internet Monthly Report March 1992 Apr 18-23 IFIP WG 6.6 Third International Symposium on Integrated Network Management, Sheraton Palace Hotel, San Francisco, CA (kzm@hls.com) May 23-26 ICC'92, Geneva, Switzerland May-Jun PSTV-XIII, University of Liege. Contact: Andre Danthine, May 23-26 ICC'93, Geneva, See IEEE Publications. Jun 7-11 OIW, NIST, Gaithersburg, MD Aug 18-21 INET93, San Francisco Bay Area Aug 23-27 INTEROP, San Francisco Dan Lynch (dlynch@interop.com) Aug SIGCOMM, San Francisco Sep ?? 6th SDL Forum, Darmstadt Ove Faergemand (ove@tfl.dk) Sep 13-17 OIW, NIST, Gaithersburg, MD Sep 20-31 ISO/IEC JTC1/SC6, Seoul, Korea. Oct INTEROP, Paris, France Oct 12-14 Conference on Network Information Processing, Sofia, Bulgaria; Contact: IFIP-TC6 Nov 9-13 IEEE802 Plenary, LaJolla, CA Dec 6-10 OIW, NIST, Gaithersburg, MD 1994 CALENDAR Apr 18-22 INTEROP94, Washington, D.C. Dan Lynch (dlynch@interop.com) Aug 29-Sep 2 IFIP World Congress Hamburg, Germany; Contact: IFIP Sep 12-16 INTEROP94, San Francisco Dan Lynch (dlynch@interop.com) 1995 CALENDAR Sep 18-22 INTEROP95, San Francisco, CA Dan Lynch (dlynch@interop.com) ------------------------------- Note: T1E1: Physical Layer Interfaces (ISDN, T1, Broadband, etc.,) T1M1: Management and Maintenance (ISDN, Broadband, Frame Relay, etc.) Cooper [Page 47] Presently we were in a very dark road, and at a point where it dropped suddenly between steep sides we halted in black shadow. A gleam of pale sand, a whisper of deep flowing waters, and a farther glimmer of more sands beyond them challenged our advance. We had come to a "grapevine ferry." The scow was on the other side, the water too shoal for the horses to swim, and the bottom, most likely, quicksand. Out of the blackness of the opposite shore came a soft, high-pitched, quavering, long-drawn, smothered moan of woe, the call of that snivelling little sinner the screech-owl. Ferry murmured to me to answer it and I sent the same faint horror-stricken tremolo back. Again it came to us, from not farther than one might toss his cap, and I followed Ferry down to the water's edge. The grapevine guy swayed at our side, we heard the scow slide from the sands, and in a few moments, moved by two videttes, it touched our shore. Soon we were across, the two videttes riding with us, and beyond a sharp rise, in an old opening made by the swoop of a hurricane, we entered the silent unlighted bivouac of Ferry's scouts. Ferry got down and sat on the earth talking with Quinn, while the sergeants quietly roused the sleepers to horse. Plotinus is driven by this perplexity to reconsider the whole theory of Matter.477 He takes Aristotle¡¯s doctrine as the groundwork of his investigation. According to this, all existence is divided into Matter and Form. What we know of things¡ªin other words, the sum of their differential characteristics¡ªis their Form. Take away this, and the unknowable residuum is their Matter. Again, Matter is the vague indeterminate something out of which particular Forms are developed. The two are related as Possibility to Actuality, as the more generic to the more specific substance through every grade of classification and composition. Thus there are two Matters, the one sensible and the other intelligible. The former constitutes the common substratum of bodies, the other the common element of ideas.478 The general distinction between Matter and Form was originally suggested to Aristotle by Plato¡¯s remarks on the same subject; but he differs325 from his master in two important particulars. Plato, in his Timaeus, seems to identify Matter with space.479 So far, it is a much more positive conception than the ?λη of the Metaphysics. On the other hand, he constantly opposes it to reality as something non-existent; and he at least implies that it is opposed to absolute good as a principle of absolute evil.480 Thus while the Aristotelian world is formed by the development of Power into Actuality, the Platonic world is composed by the union of Being and not-Being, of the Same and the Different, of the One and the Many, of the Limit and the Unlimited, of Good and Evil, in varying proportions with each other. The Lawton woman had heard of an officer's family at Grant, which was in need of a cook, and had gone there. [See larger version] On the 8th of July an extraordinary Privy Council was summoned. All the members, of whatever party, were desired to attend, and many were the speculations as to the object of their meeting. The general notion was that it involved the continuing or the ending of the war. It turned out to be for the announcement of the king's intended marriage. The lady selected was Charlotte, the second sister of the Duke of Mecklenburg-Strelitz. Apart from the narrowness of her education, the young princess had a considerable amount of amiability, good sense, and domestic taste. These she shared with her intended husband, and whilst they made the royal couple always retiring, at the same time they caused them to give, during their lives, a moral air to their court. On the 8th of September Charlotte arrived at St. James's, and that afternoon the marriage took place, the ceremony being performed by the Archbishop of Canterbury. On the 22nd the coronation took place with the greatest splendour. Mother and girls were inconsolable, for each had something that they were sure "Si would like," and would "do him good," but they knew Josiah Klegg, Sr., well enough to understand what was the condition when he had once made up his mind. CHAPTER V. THE YOUNG RECRUITS Si proceeded to deftly construct a litter out of the two guns, with some sticks that he cut with a knife, and bound with pawpaw strips. His voice had sunk very low, almost to sweetness. A soft flurry of pink went over her face, and her eyelids drooped. Then suddenly she braced herself, pulled herself taut, grew combative again, though her voice shook. HoME²Ô¾®Ïè̫ʲôÐÇ×ù ENTER NUMBET 0016eryao.org.cn
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