~ May 1993 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 (Cooper@ISI.EDU) NSF Regional reports - To obtain the procedure describing how to submit information for the Internet Monthly Report, send an email message to mailserv@is.internic.net and put "send imr-procedure" in the body of the message (add only that one line; do not put a signature). Requests to be added or deleted from the Internet Monthly report list should be sent to "imr-request@isi.edu". Details on obtaining the current IMR, or back issues, via FTP or EMAIL may be obtained by sending an EMAIL message to "rfc- info@ISI.EDU" with the message body "help: ways_to_get_imrs". For example: To: rfc-info@ISI.EDU Subject: getting imrs help: ways_to_get_imrs Cooper [Page 1] Internet Monthly Report May 1993 TABLE OF CONTENTS INTERNET ARCHITECTURE BOARD INTERNET RESEARCH REPORTS . . . . . . . . . . . . . . . . page 3 PRIVACY AND SECURITY . . . . . . . . . . . . . . . . . page 3 INTERNET ENGINEERING REPORTS . . . . . . . . . . . . . . page 3 Internet Projects ANSNET/NSFNET BACKBONE ENGINEERING . . . . . . . . . . . page 9 BARRNET . . . . . . . . . . . . . . . . . . . . . . . . . page 12 BOLT BERANEK AND NEWMAN, INC., . . . . . . . . . . . . . page 13 CONCERT . . . . . . . . . . . . . . . . . . . . . . . . . page 15 ISI . . . . . . . . . . . . . . . . . . . . . . . . . . . page 16 JANET . . . . . . . . . . . . . . . . . . . . . . . . . . page 17 JVNCNET . . . . . . . . . . . . . . . . . . . . . . . . . page 19 MERIT/MICHNET . . . . . . . . . . . . . . . . . . . . . . page 20 MERIT/NSFNET ENGINEERING. . . . . . . . . . . . . . . . . page 23 MERIT/NSFNET/INFORMATION SERVICES.. . . . . . . . . . . . page 26 NEARNET (NEW ENGLAND ACADEMIC AND RESEARCH NETWORK) . . . page 28 NNSC, UCAR/BOLT BERANEK and NEWMAN, INC., . . . . . . . . page 28 NORTHWESTNET . . . . . . . . . . . . . . . . . . . . . . page 29 PREPnet . . . . . . . . . . . . . . . . . . . . . . . . . page 29 UCL . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30 CALENDAR OF EVENTS . . . . . . . . . . . . . . . . . . . . . page 32 Cooper [Page 2] Internet Monthly Report May 1993 INTERNET RESEARCH REPORTS ------------------------- PRIVACY AND SECURITY -------------------- The PSRG will meet July 7-9 at Cambridge University, UK, the week prior to the IETF meeting in Amsterdam. The focus of this meeting will be the evolving Internet Security Architecture Document. PSRG members have been forwarding completed writing assignments to Rob Shirey, who is acting as editor for this document. A draft of the document will be circulated among the PSRG members in June, in preparation for further editing during the meeting. In April the PSRG issued a call for papers for the Internet Society Symposium on Network and Distributed System Security, under the direction of the general chairs, Rob Shirey and Russ Housley. This will be the second symposium organized by the PSRG on this topic and it will take place 3-4 February 1994, Catamaran Hotel, San Diego, California, the same venue and season as the first symposium. The initial symposium attracted over 150 attendees and the proceedings were sufficiently popular as to require a second printing run. Steve Kent (kent@BBN.COM) INTERNET ENGINEERING REPORTS ---------------------------- 1. The next meeting of the IETF will be held in Amsterdam, The Netherlands, and is being co-hosted by SURFnet and RARE. The meeting will run from July 12-16, 1993. This is the first time an IETF meeting has been held outside of North America. Logistic and registration information has already been sent to the IETF Announcement list. Note that the fee for the Amsterdam IETF meeting is $200. Also note that if you wish to take advantage of the hotel reservation service provided by the RAI conference center, you must use a special form. For you convience, this form is availble in the file 0mtg-hotel-ams.txt in the IETF Shadow directories. The IETF Secretariat is urging everyone planning to attend the Amsterdam meeting to register as soon as possible. Pre-payment of the meeting fee is strongly recommended as well. Cooper [Page 3] Internet Monthly Report May 1993 2. The fall IETF meeting will be held in Houston, Texas from November 1-5, 1993. This meeting is being co-hosted by SESQUINET and Rice University. Please note that the Secretariat is NOT accepting registrations for this meeting at this time. Details will be provided to the IETF Announcement list following the July meeting. Note that information on future IETF meetings can be always be found in the file 0mtg-sites.txt which is located on the IETF shadow directories. 3. The IESG approved or recommended the following 13 actions during the month of May, 1993: o Compressing TCP/IP headers for low-speed serial links as a Draft Standard o The Definitions of Managed Objects for the IP Network Control Protocol of the Point-to-Point Protocol as a Proposed Standard o The Definitions of Managed Objects for the Bridge Network Control Protocol of the Point-to-Point Protocol as a Proposed Standard o The Definitions of Managed Objects for the Link Control Protocol of the Point-to-Point Protocol as a Proposed Standard o The Definitions of Managed Objects for the Security Protocols of the Point-to-Point Protocol as a Proposed Standard o NFS: Network File System Protocol specification reclassified as Informational o RPC: Remote Procedure Call Protocol specification change of status to Historic o An Echo Function for CLNP (ISO 8473) as a Draft Standard o SNMP MIB extension for MultiProtocol Interconnect over X.25 as a Proposed Standard o Routing coordination for X.400 MHS services within a multi protocol / multi network environment Table Format V3 for static routing as an Experimental Protocol o Transmitting IP Traffic over ARCNET Networks change of status to Historic o Post Office Protocol - Version 3 as a Draft Standard o RPC: Remote Procedure Call Protocol specification version 2 reclassified as Informational 4. The IESG issued 11 Last Calls to the IETF during the month of May, 1993: o Compressing TCP/IP headers for low-speed serial links (Draft Standard) o The Definitions of Managed Objects for the IP Network Control Protocol of the Point-to-Point Protocol Cooper [Page 4] Internet Monthly Report May 1993 (Proposed Standard) o The Definitions of Managed Objects for the Bridge Network Control Protocol of the Point-to-Point Protocol (Proposed Standard) o The Definitions of Managed Objects for the Link Control Protocol of the Point-to-Point Protocol (Proposed Standard) o The Definitions of Managed Objects for the Security Protocols of the Point-to-Point Protocol (Proposed Standard) o IP Multicast over Token-Ring Local Area Networks (Proposed Standard) o Definitions of Managed Objects for Bridges (Draft Standard) o Transmitting IP Traffic over ARCNET Networks (Historic) o OSI Internet Management: Management Information Base (Historic) o Multiprotocol Interconnect over Frame Relay (Draft Standard) o Post Office Protocol - Version 3 (Draft Standard) 5. Five (5) New Working Group were formed this period: RIP Version II (ripv2) TP/IX (tpix) SNA DLC Services MIB (snadlc) Interfaces MIB (ifmib) SNA NAU Services MIB (snanau) Additionally, three (3) Working Groups were concluded this period: X.25 Management Information Base (x25mib) SNMP Security (snmpsec) SNMP Version 2 (snmpv2) 6. Twenty-nine (29) Internet Draft actions were taken during the month of May, 1993: (Revised draft (o), New Draft (+) ) WG I-D Title ------ -------------------------------------------------- (none) o The IP Network Address Translator (Nat) Cooper [Page 5] Internet Monthly Report May 1993 (bgp) o A Border Gateway Protocol 4 (BGP-4) (pppext) o The Definitions of Managed Objects for the IP Network Control Protocol of the Point-to-Point Protocol (pppext) o The Definitions of Managed Objects for the Link Control Protocol of the Point-to-Point Protocol (pppext) o The Definitions of Managed Objects for the Bridge Network Control Protocol of the Point-to-Point Protocol (pppext) o The Definitions of Managed Objects for the Security Protocols of the Point-to-Point Protocol (822ext) o Japanese Character Encoding for Internet Messages (hostmib) o Host Resources MIB (bridge) o Definitions of Managed Objects for Bridges (ospf) o OSPF Version 2 (none) o Routing over Demand Circuits on Wide Area Networks - RIP (none) o A tutorial on gatewaying between X.400 and Internet mail (none) o DNS NSAP Resource Records (avt) o A Transport Protocol for Real-Time Applications (chassis) o Definitions of Managed Objects for a Chassis Containing Multiple Logical Network Devices (none) o Classless Inter-Domain Routing (CIDR): an Address Assignment and Aggregation Strategy (822ext) o MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies (822ext) o MIME (Multipurpose Internet Mail Extensions) Part Two: Message Header Extensions for Non-ASCII Text (mospf) o MOSPF: Analysis and Experience (sip) o SIP System Discovery Cooper [Page 6] Internet Monthly Report May 1993 (ospf) + Guidelines for Running OSPF Over Frame Relay Networks (none) + FTP Operation Over Big Address Records (FOOBAR) (bridge) o Definitions of Managed Objects for Source Routing Bridges (none) + Address mapping functions and authorities (none) + Korean Character Encoding for Internet Messages (rmonmib) + Token Ring Extensions to the Remote Network Monitoring MIB (frnetmib) + Definitions of Managed Objects for Frame Relay Service (uri) + Uniform Resource Names (none) + Endpoint Identifiers: What do they do and why are they a good thing? 7. Twenty-four (24) RFC's were published during the month of May, 1993. RFC St WG Title ------- -- -------- ------------------------------------- RFC1441 PS (snmpv2) Introduction to version 2 of the Internet-standard Network Management Framework RFC1442 PS (snmpv2) Structure of Management Information for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1443 PS (snmpv2) Textual Conventions for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1444 PS (snmpv2) Conformance Statements for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1445 PS (snmpsec) Administrative Model for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1446 PS (snmpsec) Security Protocols for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1447 PS (snmpsec) Party MIB for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1448 PS (snmpv2) Protocol Operations for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1449 PS (snmpv2) Transport Mappings for version 2 of the Simple Network Management Protocol(SNMPv2) RFC1450 PS (snmpv2) Management Information Base for version 2 of the Simple Network Management Protocol(SNMPv2) Cooper [Page 7] Internet Monthly Report May 1993 RFC1451 PS (snmpv2) Manager to Manager Management Information Base RFC1452 PS (snmpv2) Coexistence between version 1 and version 2 of the Internet-standard Network Management Framework RFC1454 I (none) Comparison of Proposals for Next Version of IP RFC1455 E (none) Physical Link Security Type of Service RFC1456 I (none) Conventions for Encoding the Vietnamese Language VISCII: VIetnamese Standard Code for Information Interchange VIQR: VIetnamese Quoted-Readable Specification RFC1457 E (none) Security Label Framework for the Internet RFC1458 I (none) Requirements for Multicast Protocols RFC1459 E (none) Internet Relay Chat Protocol RFC1461 PS (x25mib) SNMP MIB extension for MultiProtocol Interconnect over X.25 RFC1462 I (uswg) FYI on "What is the Internet?" RFC1463 I (userdoc2) FYI on Introducing the Internet--A Short Bibliography of Introductory Internetworking Readings for the Network Novice RFC1464 E (none) Using the Domain Name System To Store Arbitrary String Attributes RFC1465 E (x400ops) Routing coordination for X.400 MHS services within a multi protocol / multi network environment Table Format V3 for static routing RFC1466 I (none) Guidelines for Management of IP Address Space St(atus): ( S) Internet Standard (PS) Proposed Standard (DS) Draft Standard ( E) Experimental ( I) Informational Steve Coya (scoya@cnri.reston.va.us) Cooper [Page 8] Internet Monthly Report May 1993 INTERNET PROJECTS ----------------- ANSNET/NSFNET BACKBONE ENGINEERING ---------------------------------- Network Status Summary ====================== The deployment of new AIX 3.2 operating software was nearly completed in May. Five remaining routers will be upgraded during June. This software increases the on-card forwarding table capacity to support 12,000 destinations Planned topology changes to the T3 network will be deployed in June Internal routing stability measurements improved on the T3 network over the April measurements. Backbone Traffic and Routing Statistics ======================================= The total inbound packet count for the network (measured using SNMP interface counters) was 29,991,341,011 on T3 ENSS interfaces. The total packet count into the network including all ENSS serial interfaces was 33,883,217,693. As of May 31, the number of networks configured in the Merit Policy Routing Database was 12272 for the T3 backbone. Of these, 3102 were never announced to the T3 backbone (e.g. silent nets). The maximum number of networks announced to the T3 backbone during the month (from samples collected every 15 minutes) was 8961, up 8.8% from April. Average announced networks on 5/31 were 8768. Planned T3 Backbone Topology Changes ==================================== During June '93, we expect to make a few changes to the T3 backbone circuit topology. These topology changes are designed to improve circuit route diversity and avoid multiple circuit outages in the presence of a fiber cut. The circuit changes include: 1. Add a T3 circuit between the Hartford CNSS and the Cleveland CNSS. 2. Add a T3 circuit between the Cleveland CNSS and the St. Louis CNSS. Cooper [Page 9] Internet Monthly Report May 1993 3. Remove the T3 circuit between the Greensboro CNSS and the Hartford CNSS. This will provide improved physical circuit diversity to avoid multiple circuit failures during a fiber cut. The addition of the Hartford to North Royalton and hence the North Royalton to St. Louis T3s will result in three unique east-west T3 paths and eliminate the possibility of an east-west backbone partition resulting from two simultaneous circuit failures. The new T3s were engineered to ensure that no two T3 circuits transit the same fiber, conduit, or physical path. On-going studies are underway to segregate all T3 and T1 tail circuits and back-up T1s to the greatest extent possible in order to provide the maximum disaster protection through physical diversity. Rcp_routed Routing Software Changes =================================== During May one new release of the routing daemon, rcp_routed, was deployed. The version named "Less Filling" contained numerous changes. The major enhancement was to reduce memory consumption and improve locality of memory access when presented with a large numbers of routes. This addressed paging problems that were beginning to occur on some ENSS nodes. Release notes are available in: ftp.ans.net:/pub/info/t3-rcp_routed/Release-Notes Routing Stability Measured on the T3 Network ============================================ Internal routing stability measurements are made by monitoring short term IBGP disconnect times (disconnects of five minutes duration or less). This is designed to be a measure of routing stability rather than full mesh connectivity. We monitor overall stability excluding the biweekly configuration windows. MONTH overall excluding configs January 99.1% 99.5% February 99.0% 99.5% March 97.5% 99.1% April 96.1% 97.2% May 97.4% 98.0% For the first time since January, the T1 link to E206 (CERN - Geneva, Switzerland) did not top the list of nodes exhibiting unstable connectivity. During May, E206 was stable 99.82% of the Cooper [Page 10] Internet Monthly Report May 1993 time (1:18:50 overall for the month), with just under 40 minutes outside of the configuration window. This accounted for much of the improvement. ENSS145 (Fix-E) suffered from a number of problems with the FDDI and ethernet adapters. This node experienced 3:54:35 of instability over the month (99.47%) and 2:17:37 outside the configuration window (99.68%), which accounted for most of the instability. During May, there were a number of problems with intermittent CNSS-CNSS circuits. Hard down CNSS-CNSS circuits result in lower measures of instability since these the T3 network maintains complete alternate routing for these links. There was recurring problem with a T3 interface adapter on CNSS40 (Cleveland) on May 28, 30, and May 31. The adapter was replaced on June 1. As a result of the intermittent CNSS-CNSS circuits, 4 routers reported over 1 hour of instability outside the config window, 33 nodes reported between 30 and 60 minutes, and 36 reported between 15 and 30 minutes. The remaining 52 nodes reported under 15 minutes of instability (about 99.97% stable). MONTH > 1hr 30-60 min 15-30 min < 15 min January 1 5 16 60 February 0 1 4 80 March 2 1 7 78 April 4 0 6 39 May 4 33 36 52 Because of the instability that results from failing circuits, work is in progress to detect packet loss on circuits in real time, and more quickly switch to internal alternate routes, thereby minimizing routing instability. Notable Outages in May '93 ============================ E150 (CONCERT) suffered an extended outage due to power problems on 05/02 E137 (Princeton) lost T3 connectivity due to hardware failure on 05/17 Cooper [Page 11] Internet Monthly Report May 1993 E143 (Seattle) lost T3 connectivity due to hardware failure on 05/20 Xlink (Germany) suffered an extended circuit outage on 05/23 Jordan Becker BARRNET ------- Membership Update Date: 6/1/93 Member Organizations: 177 New Members, May: Coast Guard Training Center, Starlight Networks, Bay Area Air Quality Management, Enterprise Integration Technologies, Biological Research Network, Computer Network Service, Software Publishing Corp., Computer Curriculum Corp., Rosenberg Institutional Equity Publications: The BARRNetter Heard on the Net (electronic) BARRTech Notes The BARRNetter, Heard on the Net, and BARRTech notes are edited by John Hoag (jhoag@barrnet.net), BARRNet Communications Coordinator. Submissions and comments are welcome. News: BARRNet is a member of CoREN (the Corporation for Regional and Enterprise Networking), a newly formed organization founded by eight regional networks (BARRNet, CICNet, MIDnet, NEARnet, NorthWestNet, NYSERNet, SURAnet, and WestNet). CoREN announced today (6/1/93) a proposed agreement with MCI Communications Corporation to put in place key infrastructure to support the delivery of advanced networked computing and information services as well as advanced inter-regional connectivity to support the National Information Infrastructure. For more information on CoREN and the MCI agreement, contact: Dr. Henry Schaffer schaffer@sura.net 919-515-4466 Dr. E. Michael Stamen stamen@cic.net 313-998-6101 Cooper [Page 12] Internet Monthly Report May 1993 New Staff: BARRNet welcomes Robert Michael Gutierrez, Associate BARRNet Network Engineer, formerly Network Operations Analyst at NASA Science Internet, NASA Ames Division. BARRNet info@barrnet.net Pine Hall, Rm 115 Phone: 415-725-1790 Stanford University Fax: 415-723-0010 Stanford, CA 94305-4122 John Hoag BOLT BERANEK AND NEWMAN INC. ---------------------------- Inter-Domain Policy Routing During the month of May, we have been conducting a pilot demonstration of IDPR in the Internet and will continue the pilot into the month of June. We will publish the results in an Internet draft, planned for release in July. We have also been working on a multicast version of IDPR. In May, we simplified the IDPR route generation software (to conform to the specification), in preparation for adding multicast route generation. We have not yet modified the path control software to enable multicast path setup; this we plan to do in June. We expect to experiment with multicast IDPR (with resource reservation) on DARTnet later in the summer. Scaleability During the past month, we finished implementing the additional statistic collection capabilities in the flow-level network simulator. The simulator can now output delay and throughput information for all network elements, as well as pairwise end-to- end drop rates and delays. Statistics may be output as either text or in a more compact binary format. Work is currently in progress on the network editor component of the simulator. The simulator is now fully functional, but the network model must currently be compiled into the code. The editor will allow the network topology and simulation parameters to be changed from a graphical user interface. Cooper [Page 13] Internet Monthly Report May 1993 In addition to simulator development, we have started testing the operation of the simulator's routing and delay models. (See December '92 Internet Monthly Report for more details about this project and the toolset being developed.) Real-Time Multicast Communications and Applications This month, we interfaced the video server to the BBN PICWIN desktop video conferencing system as a demonstration of another way to deliver video to the desktop. We have been using the Parallax board to view video in a window on a workstation. With the PICWIN interface, a user can view video in a window on a Sun workstation using software only; no specialized hardware is needed. To the video server, a workstation running either the PICWIN software or a workstation equipped with Parallax hardware, is simply another video destination. The model of video sources and destinations supported by the video server and applications makes it relatively easy to add either hardware or software solutions for displaying video on a workstation. Although the PICWIN system supports a much lower frame rate than the Parallax board, it is an interesting demonstration of a software only solution for displaying video on a workstation. We also continued work on features of the video applications that will be used to demonstrate the new network communications features such as the ones described below. Our communications efforts this month have focused on the implementation of the shared streams service, and the resource coordination object (RCO) mechanisms used to associate resource reservation information with flow and group identification, and to propagate this data to routers. Possible applications of shared streams include real-time data collection from distributed sensors and efficient multiplexing of related data flows, e.g., floor- controlled conferencing. RCO's, in addition to being used for shared streams, could be used to support applications such as session management and multicast access control. To participate in a shared flow reservation, the sender emits a shared flow RCO, identifying the endpoints of the flow, an identifier for the flow group, and a flowspec (as described in RFC 1363). This type of RCO is "flow-tracking" -- that is, the RCO propagation mechanism forwards the RCO along the path(s) taken by the associated data flow. Each network node along the flow's path keeps a copy of the RCO. If the network node implements support for shared flows, the bandwidth information in the RCO is extracted and passed to the resource reservation mechanism in that node. Cooper [Page 14] Internet Monthly Report May 1993 When routing changes occur, the RCO propagation mechanism forwards the RCO along the new route (and may also indicate that copies along the old route are no longer needed). Use of RCOs is transparent to the application using shared flows -- a library interface is being created to provide the API for the shared flow service. This library encapsulates communication with the RCO system, which operates as a general network service, independent of the application process and the shared stream service. (See January '93 and March '93 Internet Monthly Reports for more details about the application and communications services being developed.) Karen Seo CONCERT ------- The Communications Research Group has finished most of the ground work for its packet video development project. A local testbed consisting of several SPARCstation 10's connected through an 8x8 Fore Systems ATM switch (ASX-100) as well as an Ethernet segment has been set up. Initial tests demonstrated sustained data rates of close to 18 Mbps from application to application. This testbed is expected to be used to realize the goals of high quality multipoint interactive video to the desktop over IP and ATM networks. It is anticipated that this activity will assume increasing significance as the recently announced North Carolina Information Highway begins deployment next year. The group has completed a software implementation of a H.261 CODEC. The preliminary implementation can decode full-color SIF (352x240) video images at about 3 frames per second on a Sparc 10/30. The encoder ran at about 1 frame per second with a compression ratio of 40 to 1. The implementation is being extended with a hierarchical coding option and will be used in studying interactions between CODEC and network operations. In particular, the impact of IP priority mechanism on the quality and bandwidth requirement of video coding will be examined. Cooper [Page 15] Internet Monthly Report May 1993 Some initial tests have been conducted with the Parallax's XVideo card that supports frame capture and JPEG compression/decompression. The results showed that the current version of hardware and software can support video communication with full-color frames of 640x480 pixels at about 11 frames per second, between two Sparc 10/30's at about 1.5Mbps. The corresponding video image quality was found quite acceptable. A new version of XVideo software promises full-motion rate (30 frames/second). Tom Sandoski ISI ----- GIGABIT NETWORKING Infrastructure Joyce Reynolds travelled to Trondheim, Norway to attend the JENC (Joint European Networking Conference), May 10-14. Jon Postel. Bob Braden, attended the IAB meetings at CNRI, in Reston, Va. May 3-5. Twelve RFCs were published this month. RFC 1454: Dixon, T., "Comparison of Proposals for Next Version of IP", RARE, May 1993. RFC 1455: Eastlake, D.,III, "Physical Link Security Type of Service" Digital Equipment Corporation, May 1993. RFC 1456: Vietnamese Standardization Working Group, "Conventions for Encoding the Vietnamese Language VISCII: Vietnamese Standard Code for Information Interchange VIQR: Vietnamese Quoted-Readable Specification Revision 1.1", May 1993. RFC 1457: Housley, R., "Security Label Framework for the Internet", Xerox Special Information Systems, May 1993. RFC 1458: Braues, R., and S. Zabele, "Requirements for Multicast Protocols", TASC, May 1993. RFC 1459: Oikarinen, J., and D. Reed, "Internet Relay Chat Protocol", May 1993. Cooper [Page 16] Internet Monthly Report May 1993 RFC 1461: Throop, D., "SNMP MIB Extension for Multiprotocol Interconnect over X.25", Data General Corporation, May 1993. RFC 1462: Krol, E. (University of Illinois) and E. Hoffman (Merit Network, Inc.), "FYI on "What is the Internet?" May 1993. RFC 1463: Hoffman, E., (Merit Network, Inc.) and L. Jackson, (NASA), "FYI on Introducing the Internet-- A Short Bibliography of Introductory Internetworking Readings for the Network Novice", May 1993. RFC 1464: Rosenbaum, R., "Using the Domain Name System to Store Arbitrary String Attributes", Digital Equipment Corp. May 1993. RFC 1465: Eppenberger, D., " Routing Coordination for X.400 MHS Services Within a Multi Protocol / Multi Network Environment Table Format V3 for Static Routing", SWITCH, May 1993. RFC 1466: Gerich, E., "Guidelines for Management of IP Address Space", Merit, May 1993. Ann Westine Cooper (Cooper@ISI.EDU) MULTIMEDIA CONFERENCING The IETF BOF/WG on a Multiparty Multimedia Session Protocol (previously known as Conference Control) held a telemeeting over the MBONE. Discussion focused on a revised framework for the interaction of session management and underlying media agents. In addition, several individuals were identified to begin documenting a terminology reference guide, refinements to the functional taxonomy, and mappings from conversation styles into session protocols. Steve Casner, Eve Schooler (casner@ISI.EDU, schooler@ISI.EDU) JANET ----- JANET Report: April 1993 The main activity on JANET during April was the commissioning of the initial 34 Mbit/s IP data network as part of the SuperJANET Cooper [Page 17] Internet Monthly Report May 1993 project. This consists of six sites: University College London (UCL), Imperial College (and onward to the Royal Postgraduate Medical School (RPMS) at Hammersmith Hospital), Rutherford Appleton Laboratory (RAL), Manchester University and Edinburgh University. Cambridge University and University of London Computer Centre (ULCC) will be added shortly and Glasgow University later in May. When ULCC is connected the network will also be attached to the international access points to JANET (the UK/US Fat-pipe, EBONE and EuropaNET). The network was built as a ring of 34 Mbit/s lines with a Cisco AGS+/4 with two HSSI interfaces at each vertex. Following difficulties in getting the Cisco kit on time (reported in last month's report), there was a considerable amount of last-minute moving of routers around the country involved but everything was ready for the first SuperJANET demonstration on 29 April. The network performed well at the demonstration, giving the subjective impression that there was no difference in speed in accessing data over the wide area than in doing so over the LAN. (Subsequently, the RPMS reported obtaining a file transfer rate of 960 Kbyte/s to UCL -- two-hops away -- when setting up their demonstration, with standard file-transfer software.) The performance of the network has still to be measured more coherently, but initial ping tests show that the round-trip times between routers are as expected -- ie limited by propagation delays on the fibres involved. (These range from 3-17 ms round-trip times.) An initial calculation suggests that in most cases any two points on the network should be within a 64 kbyte TCP window and hence it should be possible to drive the network to saturation using a suitable pair of end system TCP/IP implementations. Extended windows may be needed in some cases, however. At present the 34 Mbit/s network is being used as a pilot for the connection of the sites involved -- ie IP traffic between the sites flows over this network rather than the JIPS (JANET IP Service -- the standard IP network offering on JANET) by default. JIPS connectivity between the sites remains as a backup, of course. (This was demonstrated on Friday 30 April when the SuperJANET connection into UCL was lost and IP connectivity to this site quickly dropped back to the JIPS.) Depending on the stability of the network, it is aimed to bring it into service as part of the JIPS during July 1993. Meanwhile, the use of the service network remained high. The total IP traffic switched across JANET in April was approximately 1000 Gigabyte. Of this approximately 180 Gigabyte passed through the UK/US Fat-pipe, and approximately 112 Gigabyte to and from EBONE. Cooper [Page 18] Internet Monthly Report May 1993 The number of hosts attached can be measured, to first order, by the size of the ac.uk domain. As of end April it contained 57273 distinct hosts in 301 subdomains. (This was an increase of 2935 hosts and represents approximately 89% of the uk domain.) Bob Day R.Day@jnt.ac.uk JVNCNET ------- JvNCnet-Global Enterprise Services, Inc. 3 Independence Way Princeton, NJ 08540 1-800-35-TIGER I. New Information A. GES has moved to a new location at the Princeton Corporate Center. (See address above). Main number is (609) 897-7300. Network operations center (NOC) telephone numbers are: (609) 897-7318, 897-7319, and 897-7320. B. New on-line members (fully operational April 1993) To be reported with the next IMR. II. Symposia Series A. All seminars are open to the public. To place your name on the symposia mailing list, please send email to hammer@jvnc.net. Location for each: Princeton Marriott Forrestal Village, Plainsboro, NJ Date: June 29, 1993 Title: System Administration on the Internet Audience: Network manager, systems administrator, and anyone interested in learning about the three most important network services for a new Internet connection. Topics: Domain name service (DMS), sendMail, news Proper guidelines for establishing a new system using Internet plus ways to streamline a current system will be discussed. Cooper [Page 19] Internet Monthly Report May 1993 Speakers: Prof. Neil Rickert, Northern Illinois University, Richard Salz, Open Software Foundation, and Thomas Brisco, Rutgers University Date: July 8, 1993 Title: Network Security and Practical Implementation at your Site Audience: Network technical staff including network operations and system administrators of TCP/IP-based networks who are responsible for managing an Internet connection and applying security measures and any Internet user or individual contemplating use of the Internet who is concerned or responsible for securing their site's connection. Topics: Internet security, unauthorized intrusions, problems, resolutions, recognizing system and network vulnerabilities or weaknesses, Kerberos, firewalls, role of CERT and procedures to put in place before a crisis occurs, and JvNCnet security protocols. Early bird registration: JvNCnet members $250; non-members $275. Visa/Mastercard accepted. Check or money order payable to GES, Inc. For further details or to register, please send email to hammer@jvnc.net or call Rochelle Hammer at 609-897-7315. B. Beginning this summer, GES will offer Cisco router configuration courses. For information, contact Steven Williams at 609-897-7314 or send email to 'registration@jvnc.net'. Rochelle Hammer (hammer@jvnc.net) MERIT/MICHNET ------------- In mid-April, the Chronicle of Higher Education and Merit Network, Inc., launched a free Internet service that provides in-depth news and information for the worldwide academic community. ACADEME THIS WEEK includes: Cooper [Page 20] Internet Monthly Report May 1993 Summaries of news in the current issue of The Chronicle of Higher Education. A weekly calendar of conferences, symposia, workshops, and other events in academia. A weekly schedule of Washington, D.C. events of interest to women and men in academia. The week's important deadlines for fellowships, grant applications, exchange programs, and other funding opportunities. A listing of hundreds of job openings at colleges, universities, and other non-profit institutions worldwide. All postings are searchable by keyword or geographic region. The Chronicle, published weekly, is one of the most important sources of professional news for faculty and administrators at colleges and universities in the United States and abroad. The Chronicle is the first major newspaper on the Internet to offer portions of its contents along with extensive listings of job openings. The job announcements come from The Chronicle's "Bulletin Board" section--the world's largest marketplace for jobs in academia. A new edition of ACADEME THIS WEEK becomes available on the Internet every Tuesday at noon. At present, only the current issue of the Chronicle is available online. ACADEME THIS WEEK may be accessed via the Internet Gopher at chronicle.merit.edu, port 70 Send e-mail to help@chronicle.merit.edu for more information about ACADEME THIS WEEK. Merit plans to continue to help organizations such as The Chronicle deliver information to the worldwide Internet community. If you would like more information about these services, send e-mail to: online.services@merit.edu New MichNet affiliates include the Ann Arbor EPA office; Lakeland Library Cooperative, Grand Rapids MI; Detroit Public Schools; and the Great Lakes St. Lawrence Seaway Telecommunications Collaborative/Star Schools Project. Merit currently has 9 member institutions, and 51 affiliates with 81 MichNet attachments at 79 locations. Cooper [Page 21] Internet Monthly Report May 1993 MichNet, with several other regionals, has been participating in the use of CIDR recommendations for the allocation of address space for its education, research and commercial users. MichNet has been allocated a block of 1023 class C network numbers to use. Thirteen of Michigan's fifteen four-year public universities have direct MichNet attachments. Eight private colleges or universities, five community colleges and five K-12 schools also have direct attachments. The supercomputer facilities operated by the U.S. Environmental Protection Agency in Bay City and by the U.S. Army Tank and Automotive Command (TACOM) in Warren both have 1.5Mbps attachments. Merit has completed work on the MichNet backbone upgrade. The Grand Rapids node has been moved from Western Michigan University's Regional Center in Grand Rapids to the facilities of Teledial, Inc. Two new T1 lines have been homed to the relocated Grand Rapids node and the WMU Regional Center is linked using a 56Kbps tail circuit. A new T1 line links Grand Valley State University to the backbone, and another links Ferris State University through the Applied Technology Center at Grand Rapids Community College. The Network Access Server (NAS) evaluation project is part of a larger project to upgrade user connectivity to MichNet. Dial-in asynchronous connectivity has been the focus of the NAS evaluation. Common connection establishment procedures have been determined to be the principle requirements which must be met by a NAS participting in the MichNet pool of ports, as well as the ability to interface with an authentication helper interfacing with several authentication servers. The IETF Working Group, NASREQ, is pursuing this goal. Merit has chosen to work with Livingston in implementing a pilot NAS which supports the MichNet requirements. The University of Michigan plans the installation of a 30 port Livingston Portmaster for beta test in early July. The UofM machine will be used for PPP access only, with public availability to authenticated users with the completion of successful testing. Michigan State University is working with Xylogics, another vendor who has been actively working with NASREQ and interested in understanding and meeting these requirements. The Switched Multimegabit Data Service (SMDS) trial, conducted in conjunction with Ameritech and Michigan Bell, proceeded well and has been concluded. Evaluation of the service determined it to be financially inappropriate for MichNet backbone services. SMDS will be considered for MichNet service at speeds greater than 1.5Mbps (T1). Merit has begun to use Ameritech's Frame Relay Service (FRS). Frame Relay is now operational on T1 links between Ann Arbor, Flint, Oakland University, and Wayne State University. The Ameritech FRS offering is a Permanent Virtual Circuit (PVC)-based Cooper [Page 22] Internet Monthly Report May 1993 service with access speeds between 56Kbps and T1. There is no mileage sensitive fee component associated with FRS, but a flat rate charge for whatever speed is used. FRS offers high-bandwidth connectivity at a lower cost. Jo Ann Ward (jaw@merit.edu) MERIT/NSFNET ENGINEERING ------------------------ Major projects for the month of May were the deployment of a prototype route server at the MAE-East ethernet, implementation of a program for automated submission of network announcement change requests, preparation for a meeting of the NSFNET Regional-Techs in June, continued IDRP development and progress on the Shared Whois Project. Route Server Deployment A SUN ELC was shipped to College Park, MD. The SURAnet staff is cooperatively assisting in the installation of the machine which is now being used as a route server running the GateD routing daemon. It has been configured to operate BGP peer sessions with the network service provider peers (including the NSFNET ENSS) and the RIPE route server. The route server is building a table of routes to destinations learned from those peers. Later it will be configured to announce routes back to the peers, in a controlled fashion coordinated with the other providers along with RIPE. Automated Submission of Routing Requests The following note was sent to the regional-techs group to announce a new method of submitting requests for routing. Authorized Routing Administrators: During the past months, we've been developing a scalable approach to the configuration of the NSFNET/ANSnet backbone as part of our continued effort to provide and maintain accurate routing information and a high level of service. To this end, Merit is pleased to announce - a new NACR (version 7.0), and - a new service, a NACR server, available via telnetting to merit.edu for filling out the new NACR. Cooper [Page 23] Internet Monthly Report May 1993 WHY ARE WE DOING THIS? ===================== We need this new NACR and server, and your help in converting to these, in order to expedite processing of your NACRs through: - enhancing validation of information _upon entry_ and aid in correcting it at that time, - reducing unnecessary mail, - providing for automatic 'cc'-ing of appropriate ASs, - allowing for parsing of consistent NACRs, - and more! This move is necessary in order to provide you with a reasonable level of service and to provide Merit with a scalable, less resource-intensive method of providing the configuration service. NEW NACR ======== The new NACR is available via anonymous ftp: nic.merit.edu:nsfnet/announce.networks/template.net with helpful information in: nic.merit.edu:nsfnet/announced.networks/template.net.README. NOTE: Merit will *only* accept v7.0 templates after 1 July 1993. NEW NACR SERVER =============== Some of the good points of this service are presented above; because we expect it to improve the accuracy and turnaround of your NACRs, we strongly urge you to try out this service, and work with us to improve it so that you will use it. (Many thanks to Bill Manning for being our guinea pig!) If you'd like to use this, we need to set you up with an account, password, etc.; please send email to: autonacr@merit.edu Cooper [Page 24] Internet Monthly Report May 1993 or call: Steve Richardson at (313) 747-4813 (voicemail is supported) These topics will be discussed at the Regional Techs' Meeting next week in Washington, D.C. Thanks! Merit Configuration Operations NSFNET Regional-Techs Meeting Merit will hold a meeting of the NSFNET Regional-Techs group during June 10-11 in Reston, VA at Sprint International. The major purpose of the meeting is to discuss the deployment of CIDR (Classless Inter-Domain Routing) in the Internet. The agenda is summarized as follows. Thursday, June 10 9:00-9:15 15" Mark Knopper, Merit Opening Remarks 9:15-10:15 60" Dale Johnson and Steve Richardson, Merit Configuration of NSFNET for Aggregation 10:15-10:30 15" Break 10:30-11:15 45" Jeff Honig, Cornell Gated Support of CIDR 11:15-12:00 45" Dan Jordt, NorthWestNet NSFNET Solicitation Status 12:00-1:30 90" Sprint International - Lunch 1:30-2:00 30" Hans-Werner Braun, SDSC NSFNET Network Analysis and Traffic Characterization 2:00-2:45 45" Peter Ford, Los Alamos National Labs Proposals for Representing and Sharing Routing Policy Information 2:45-3:00 15" Break 3:00-3:30 30" Elise Gerich, Merit Route Server Deployment Cooper [Page 25] Internet Monthly Report May 1993 3:30-4:30 60" Andy Adams, Merit Enke Chen, Merit NSFNET Policy Routing Database Implementation Status Friday, June 11, 1993 9:30-10:30 60" Mark Knopper, Merit, Daniel Karrenberg, RIPE NCC Scott Williamson, InterNIC/NSI Registration Issues for IP Aggregates 10:45-11:15 30" Jordan Becker, ANS ANSNET Backbone Status Report 11:15-11:45 30" Mark Knopper Current Status/Problems and Meeting Summary Shared Whois Project The SWIP project continues to make progress. RIPE, InterNIC/NSI and Merit are now all sharing the transfer syntax data and beginning to process the data to determine inconsistencies. Mark Knopper (mak@merit.edu) MERIT/NSFNET INFORMATION SERVICES --------------------------------- During the month of May, Ghana became the newest international site with announcement to the NSFNET backbone. Of the 12,349 total networks announced to the NSFNET backbone at the close of May, 4,951 networks have foreign locations. Growth as reflected in the number of domestic and foreign networks having announcemnt to the NSFNET infrastructures, as well as network distribution by country over the term of the NSFNET project are available for Anonymous FTP from the host nic.merit.edu as /nsfnet/statistics/history.netcount and /nsfnet/statistics/nets.by.country respectively. These files may also be received via electronic mail query. The message should be sent to nis-info@nic.merit.edu Cooper [Page 26] Internet Monthly Report May 1993 with the first line of text (not subject) send history.netcount Other new information available on nic.merit.edu via Anonymous FTP, e-mail query and Gopher includes: The National Science Foundation program solicitation for the Network Access Point Manager, Routing Arbiter, Regional Network Providers, and Very High Speed Backbone Network Services Provider for NSFNET and the NREN (SM) Program, NSF 93-52. The program solicitation relates directly to the activities to "upgrade the National Science Foundation funded network, assist regional networks to upgrade their capabilities, and provide other Federal departments and agencies the opportunity to connect to the National Science Foundation funded network." Available as /nren/nsf9352 "Internet Basics," by Roy Tennant. An ERIC DIGEST which briefly describes the Internet computer network, the physical connections and logical agreements that make it possible, and the applications and information resources the network provides. Available as /introducing.the.internet/internet.basics.eric-digest The international connectivity list, created by Larry Landweber at the University of Wisconsin, is ordered by country and network protocol. This information is also rendered into map form. Available as /internet/connectivity/world.list.txt /internet/connectivity/world.list.ps /internet/connectivity/world.map.ps The FARNET meeting and workshop, "Service Excellence," hosted by CICnet in Ann Arbor, MI, was attended by Eric Aupperle, President of Merit Network, Inc.; Jim Williams, Merit Associate Director for National Networking; and Ellen Hoffman, Merit Manager for Information Services. Hoffman participated on the panel, "User Services: Current Projects." Aupperle also attended the IEEE Information Exchange Conference in Washington, D.C. Chris Weider, of Merit's Information Delivery group, traveled to the University of Wisconsin at Madison to present information on Whois++ to the UW Computer Science department. Jo Ann Ward (jaw@merit.edu) Cooper [Page 27] Internet Monthly Report May 1993 NEARNET (NEW ENGLAND ACADEMIC AND RESEARCH NETWORK) --------------------------------------------------- Conference Participation ------------------------ John Rugo gave a presentation at the FARNET Service Excellence Workshop in Ann Arbor Michigan. John was also one of the presentors at the Public Access to the Internet forum at the John F. Kennedy School of Government. Jim Naro participated in the CICNet Rural Datafication Conference in Chicago, IL. NEARnet Mini-Seminar Series --------------------------- The first NEARnet Mini-Seminar, entitled: "An Introduction to NEARnet Network Operation Services and Security Options" was held on Wednesday, May 26, 1993 at the Bolt Beranek and Newman Inc. (BBN) Newman Auditorium in Cambridge, Massachusetts. The seminar opened with an introduction to NEARnet Network Operation (NOC) Services by the NEARnet NOC Manager, Steve Miller. Dan Long, NEARnet Senior Network Analyst, updated the audience on NEARnet's security services and the recent security test. Ed Anselmo, NEARnet Network Analyst, presented an overview which focused on designing security packet filters and firewalls. The last hour of the seminar included a presentation of security products by: Stephen Artick, of Security Dynamics; Pat Barton, of The Concord Group, and Jane Donnelly, of ANS CO+RE Systems, Inc. The seminar concluded with a tour of the new NEARnet NOC. Seminar proceedings and a videotape of the session will be available for NEARnet members to borrow in mid-June. by Corinne Carroll NNSC, UCAR/BOLT BERANEK and NEWMAN, INC. ---------------------------------------- The NNSC continues to assist in the transition to the new InterNIC team. The NNSC will begin the process of shutting down the nnsc.nsf.net machine during the month of June. The final issue of the NSF Network Newsletter is complete and has been forwarded for printing and distribution. Corinne Carroll Cooper [Page 28] Internet Monthly Report May 1993 NORTHWESTNET ------------ The NorthWestNet Board of Directors met on May 14th in Seattle, WA. Among its many activities that day, new Board members were elected including representatives from higher education, K-12, libraries, and industry. NorthWestNet is pleased to announce the addition of three, new staff members. In late April, Mike Showalter began as the Information Services Specialist in the User Services group and Allen Robel assumed his position as Network Engineer in the Technical Services group in May. Laurence Lundblade will also work at NorthWestNet through the summer; his work will focus on integrating News reading functions into the Pine mailer. In addition to their normal monthly teleconference meeting, two regional meetings of the User Services Committee were hosted in late April--one at Willamette University in Salem, OR and the other at Seattle Pacific University in Seattle, WA. The committee discussed issues related to Internet training and marketing at their sites and made progress on planning for this year's Annual Meeting which is scheduled for October 12-15. NorthWestNet info@nwnet.net 15400 SE 30th Place, Suite 202 Phone: (206) 562-3000 Bellevue, WA 98007 Fax: (206) 562-4822 Dr. Eric S. Hood, Executive Director Jan Eveleth, Director of User Services Dan L. Jordt, Director of Technical Services Anthony Naughtin, Manager of Member Relations NorthWestNet serves the six state region of Alaska, Idaho, Montana, North Dakota, Oregon, and Washington. Jan Eveleth PREPNET ------- PREPnet membership now totals 119. New members since our last report are: Institute for Scientific Information Philadelphia, PA PA Department of Agriculture Harrisburg, PA Mt. Lebanon School District Pittsburgh, PA St. Joseph's University Philadelphia, PA Cooper [Page 29] Internet Monthly Report May 1993 Westminster College New Wilmington, PA Performance Signal Integrity Pittsburgh, PA PA Department of Environmental Resources Harrisburg, PA National Technology Transfer Center Wheeling WV Voicenet Ivyland, PA Gannon University Erie, PA Geisinger System Services Danville, PA Southern York County School District Glen Rock, PA Swanson Analysis Houston, PA User Consultant Daryl Dolan officially joined PREPnet on June 1st. Among his duties will be consulting and training for PREPnet members. PREPnet NIC 305 S. Craig Street Pittsburgh, PA 15213 412-268-7870 nic@prep.net Marsha Perrott PREPnet NIC (prepnet+@andrew.cmu.edu) UCL ---- Two papers accepted for ACM SIGCOMM 93: - - Analysis of Burstiness and Jitter in Real Time Communications Zheng Wang and Jon Crowcroft - - Core Based Trees Tony Ballardie (University College London), Paul Francis (Bellcore) and Jon Crowcroft One paper for INET 93: - - Multimedia Application Requirements for Multicast Communications Services, Jon Crowcroft [We are striving to become UC London, and will take up residence in California shortly:-] We are working on the details of a resource guarantee mecnahism for the UK-US fat pipe, which is based on some of Van Jacosbson's work. We hope to have this finished by August. Details in later reports. Cooper [Page 30] Internet Monthly Report May 1993 We succesfully demonstrated a MICE multiway european and US multimedia conference, after a lot of fighting with the network. Plans are underway for a followup at the IETF in Amsterdam. Again, details will be posted. John Crowcroft (j.crowcroft@CS.UCL.AC.UK) Cooper [Page 31] Internet Monthly Report May 1993 CALENDAR -------- Readers are requested to send in dates of events that are appropriate for this calendar section. Please send your submissions to (cooper@isi.edu). 1993 CALENDAR May 10-13 4th Joint European Networking COnf., JENC93 Trondheim, Norway May 13-14 RARE Council of Administration, Trondheim May 23-26 ICC'93, Geneva, Switzerland May 25-28 IFIP WG6.1 13th Intl. Symposium; Protocol Specification Testing and Verification Liege Belgium May-Jun PSTV-XIII, University of Liege. Contact: Andre Danthine, Jun 2-4 ANSI X3S3.3, Raleigh, NC Jun 7-11 OIW, NIST, Gaithersburg, MD Jun 15-30 ISO/IEC JTC1/SC21, Yokohama Jun 21-25 USENIX, Cincinnati Jun 30 RARE Technical Committee, Amsterdam Jul 12-16 IETF, Amsterdam, The Netherlands Jul 12-16 IEEE802 Plenary, Sheraton Denver Tech Center,Denver, CO Jul 12-16 TCOS WG, Hawaii (tentative) Aug 1-6 Multimedia '93, Anaheim, CA Aug 17-20 INET93 San Francisco,(Request@inet93.stanford.edu) Aug 23-27 INTEROP93, San Francisco Dan Lynch (dlynch@interop.com) Sep 13-17 SIGCOMM 93, San Francisco Sep ?? 6th SDL Forum, Darmstadt Ove Faergemand (ove@tfl.dk) Sep 8-9 ANSI X3S3.3, Boulder, CO Sep 13-17 OIW, NIST, Gaithersburg, MD Sep 14 -? IFIP TC6. GMD-Fokus, 2nd Intl Conf. on Open Distributed Processing, ICODP12, Berlin Sep 20-31 ISO/IEC JTC1/SC6, Seoul, Korea. Sep 28-29 September RIPE Technical Days, TBC Oct INTEROP93, Paris, France Oct 5-6 IFIP WG 6.6 Intl Workshop on Distributed Systems: Operations and Management DSOM'93. Oct 12-14 Conference on Network Information Processing, Sofia, Bulgaria; Contact: IFIP-TC6 Cooper [Page 32] Internet Monthly Report May 1993 Oct 18-22 TCOS WG, Atlanta, GA (tentative) Nov 2-4 ANSI X3S3.3, TBD Nov 2-4 EMAIL World, Einar Steffurd Nov 9-13 IEEE802 Plenary, Crown Sterling Suites, Ft. Lauderdale, FL Nov 15-19 Supercomputing 93, Portland, OR Dec 6-10 OIW, NIST, Gaithersburg, MD 1994 CALENDAR Feb 3-4 ISOC Symposium on Network and Distributed System Security, San Diego, (nessett@llnl.gov) 2-6 May NetWorld+INTEROP 94, Las Vegas, Nevada Dan Lynch (dlynch@interop.com Jun 1-3 IFIP WG 6.5 ULPAA, Barcelona, Spain Einar Stefferud (stef@nma.com) Aug 28-Sep 2 IFIP World Computer Congress Hamburg, Germany; Contact: IFIP Sep 12-14 NetWorld+INTEROP 94, Atlanta, Georgia Dan Lynch (dlynch@interop.com) 1995 CALENDAR Sep 18-22 INTEROP95, San Francisco, CA Dan Lynch (dlynch@interop.com) 1996 CALENDAR Sep 2-6 14th IFIP World Computer Congress Canberra, Australia Contact: IFIP ======================================================================== Cooper [Page 33]