~ April 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 April 1993 TABLE OF CONTENTS INTERNET ARCHITECTURE BOARD IAB MESSAGE . . . . . . . . . . . . . . . . . . . . . . page 3 INTERNET ENGINEERING REPORTS . . . . . . . . . . . . . . page 4 Internet Projects ANSNET/NSFNET BACKBONE ENGINEERING . . . . . . . . . . . page 10 BARRNET . . . . . . . . . . . . . . . . . . . . . . . . . page 13 BOLT BERANEK AND NEWMAN, INC., . . . . . . . . . . . . . page 14 CONCERT . . . . . . . . . . . . . . . . . . . . . . . . . page 17 CSUNET (CALIFORNIA STATE UNIVERSITY NETWORK). . . . . . . page 18 ISI . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19 JVNCNET . . . . . . . . . . . . . . . . . . . . . . . . . page 21 MERIT/NSFNET ENGINEERING. . . . . . . . . . . . . . . . . page 24 MERIT/NSFNET/INFORMATION SERVICES . . . . . . . . . . . . page 27 NEARNET (NEW ENGLAND ACADEMIC AND RESEARCH NETWORK) . . . page 28 NNSC, UCAR/BOLT BERANEK and NEWMAN, INC., . . . . . . . . page 29 OARNET. . . . . . . . . . . . . . . . . . . . . . . . . . page 30 UCL . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31 CALENDAR OF EVENTS . . . . . . . . . . . . . . . . . . . . . page 32 Cooper [Page 2] Internet Monthly Report April 1993 INTERNET ARCHITECTURE MESSAGE IAB POSITIONS The Internet Activities Board (IAB) has selected Christian Huitema as its chair for the coming year. Other IAB positions are as follows: * Chair of Internet Research Task Force (IRTF): Jon Postel * RFC Editor: Jon Postel * Internet Assigned Numbers Authority (IANA): Jon Postel * Executive Director: Bob Braden * Liaisons to IESG: Christian Huitema, Yakov Rekhter * Representative to CCIRN: Barry Leiner LIAISON WITH ISO AND ITU At its Tuesday evening open IAB meeting at Columbus in March, there was a discussion of possible liaisons between the IETF standards making activities and ISO, and between IETF and ITU. According to its charter, the IAB is responsible for liaison arrangements between the Internet standards process and other standards agencies. The IAB has agreed that detailed negotiations with ISO and CCITT may be conducted by the ISOC President Vint Cerf, in consultation with the IAB. If agreement is reached, liaison would be effected by a formal agreement between that standards body and the Internet Society, the legal entity that would represent the IAB/IESG/IETF for this purpose. The IAB, selected by the IETF membership under the new process, intends to be fully responsive to the needs and desires of the IETF and the Internet community. The IAB wishes to strongly affirm that: (1) No agreement should or will be made with another standards body that will in any way impede progress or change the style of operation of the IETF. (2) The primary purpose of any such relationship, if it were to be established, would be to benefit the Internet through official recognition of the reality that the IETF is an important source of international computer communication standards. (3) The outcome of the IPng discussions should in no way be tied to the progress of such relationship. Cooper [Page 3] Internet Monthly Report April 1993 Detailed negotiations on these matters are being conducted by the ISOC President Vint Cerf, on behalf of the IAB/IESG/IETF. Two different liaison relationships with ISO are possible for the ISOC, Category A and Category C. Category A would simply recognize that the ISOC/IAB/IETF is "another source of international standards", while Category C would allow liaison at the working group level. With the advice and consent of the IAB, the ISOC Board of Trustees previously initiated a request for category A liaison with ISO, and this request is pending. In an unrelated action, Jack Holdsworth brought an offer from ISO/IEC JTC1/SC6 for Category C liaison. Since the Columbus meeting, it has been erroneously reported in parts of the trade press that the IAB agreed to pursue Category C liaison with ISO. This is not correct. The IAB has decided to delay action on the ISO category C liaison offer until negotiations on Category A are concluded. Furthermore, there were many issues and concerns raised by IAB and IETF members attending the Columbus meeting. Before Category C liaison could proceed, these issues must be settled to the satisfaction of the Internet community, and there must be general agreement that such liaison is in the best interests of the IETF. The IAB is preparing a more complete statement about these issues. Bob Braden (Braden@ISI.EDU) INTERNET ENGINEERING REPORTS ---------------------------- 1. Let me remind everyone that 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 will be the first time an IETF meeting has been held outside of North America. The attendee fee for the Amsterdam IETF meeting will be $200 (USD) and pre-registration and prepayment is being encouraged. 2. I am pleased to announce that Scott Bradner, Lyman Chapin, Brewster Kahle, Allison Mankin, and Marshall Rose, have joined the IESG. The current IESG members are: Phill Gross IETF Chairman Brewster Kahle Applications Area Erik Huizer Applications Area David Crocker Service Applications Area Allison Mankin Transport Area Marshall Rose Network Management Area Cooper [Page 4] Internet Monthly Report April 1993 Robert Hinden Routing Area Stev Knowles Internet Area David Piscitello Internet Area Joyce Reynolds User Services Area Scott Bradner Operational Requirements Area Stephen Crocker Security Area Lyman Chapin Standards Management 3. The IESG approved or recommended the following 19 actions during the month of April, 1993: o Multiprotocol Interconnect over ATM Adaptation Layer 5 as a Proposed Standard. o Protocol Operations for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Introduction to version 2 of the Internet-standard Network Management Framework as a Proposed Standard. o Transport Mappings for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Structure of Management Information for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Coexistence between version 1 and version 2 of the Internet-standard Network Management Framework as a Proposed Standard. o Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Manager to Manager Management Information Base as a Proposed Standard. o Management Information Base for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Conformance Statements for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Party MIB for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Security Protocols for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Administrative Model for version 2 of the Simple Network Management Protocol (SNMPv2) as a Proposed Standard. o Definitions of Managed Objects for Administration of SNMP Parties has a status of Historic. o SNMP Security Protocols has a status of Historic. o SNMP Administrative Model has a status of Historic. o SNMP Security Protocols has a status of Historic. o FYI on Introducing the Internet--A Short Bibliography of Introductory Internetworking Readings for the Network Novice as an Informational RFC. o FYI on "What is the Internet?" as an Informational RFC. Cooper [Page 5] Internet Monthly Report April 1993 4. The IESG issued 4 Last Calls to the IETF during the month of April, 1993: o RPC: Remote Procedure Call Protocol specification o NFS: Network File System Protocol specification o An Echo Function for ISO 8473 o SNMP MIB extension for MultiProtocol Interconnect over X.25 5. The IESG approved the formation or re-activation of the following seven (7) new Working Groups: Character MIB (charmib) DECnet Phase IV MIB (decnetiv) Modem Management (modemmgt) Frame Relay Service MIB (frnetmib) Mail and Directory Management (madman) ATM MIB (atommib) Telnet TN3270 Enhancements (tn3270e) Additionally, the following two Working Groups were concluded: Internet Accounting (acct) Office Document Architecture (oda) 6. Forty-three (43) Internet Draft actions were taken during the month of April, 1993: (Revised draft (o), New Draft (+) ) WG I-D Title ------ -------------------------------------------------- (telnet) o Telnet Authentication and Encryption Option (cat) o Generic Security Service Application Program Interface (cat) o The Kerberos Network Authentication Service (V5) (x25mib) o SNMP MIB extension for MultiProtocol Interconnect over X.25 (x400ops) o Routing coordination for X.400 MHS services within a multi protocol / multi network environment Table Format V3 for static routing (pppext) o The PPP Internetwork Packet Exchange Control Protocol (IPXCP) (pppext) o The Definitions of Managed Objects for the Bridge Network Control Protocol of the Point-to-Point Cooper [Page 6] Internet Monthly Report April 1993 Protocol (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 Security Protocols of the Point-to-Point Protocol (pppext) o The Definitions of Managed Objects for the Link Control Protocol of the Point-to-Point Protocol (osids) o DSA Metrics (mimemhs) o HARPOON: Rules for downgrading messages from X.400/88 to X.400/84 when MIME content-types are present in the messages (none) o IP and ARP on Fibre Channel (FC) (noop) o An Echo Function for ISO 8473 (none) o ISO/CCITT and Internet Management Coexistence (IIMC): Translation of Internet MIB-II (RFC1213) to ISO/CCITT GDMO MIB (IIMCMIB-II) (wnils) o Architecture of the Whois++ Index Service (none) o ISO/CCITT and Internet Management Coexistence (IIMC): Translation of Internet MIBs to ISO/CCITT GDMO MIBs (IIMCIMIBTRANS) (pem) o MIME-PEM Interaction (none) o ISO/CCITT and Internet Management Coexistence (IIMC): Translation of ISO/CCITT GDMO MIBs to Internet MIBs (IIMCOMIBTRANS) (none) o ISO/CCITT and Internet Management Coexistence (IIMC): Translation of Internet Party MIB (RFC1353) to ISO/CCITT GDMO MIB (IIMCPARTY) (none) o ISO/CCITT and Internet Management Coexistence (IIMC): ISO/CCITT to Internet Management Proxy (IIMCPROXY) (none) o DNS NSAP RRs (pppext) o Compressing IPX Headers Over WAN Media (CIPX) (appleip) o AppleTalk Management Information Base II (iplpdn) o Multiprotocol Interconnect over Frame Relay Cooper [Page 7] Internet Monthly Report April 1993 (822ext) o MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies (822ext) o The text/enriched MIME Content-type (sip) + SIP Program Interfaces for BSD Systems (822ext) o The Content-MD5 Header (telnet) o Telnet Environment Option (none) o Post Office Protocol - Version 3 (cat) o FTP Security Extensions (pip) + The Multi-Level Path Vector Routing Scheme (telnet) + Telnet Environment Option Interoperability Issues (uswg) + FYI on "What is the Internet?" (none) + Using the Domain Name System To Store Arbitrary String Attributes (none) + Exchanging Routing Information Across Provider/Subscriber Boundaries in the CIDR Environment (mospf) + MOSPF: Analysis and Experience (sip) + Administrative Allocation of the 64-bit Number Space (none) + Connection Multiplexing Protocol (CMP) (sip) + SIP System Discovery (uri) + Uniform Resource Locators (tuba) + Assignment of System Identifiers for TUBA/CLNP Hosts Cooper [Page 8] Internet Monthly Report April 1993 7. One (1) RFC was published during the month of April, 1993. RFC St WG Title ------- -- -------- ------------------------------------- RFC1453 I (none) A Comment on Packet Video Remote Conferencing and the Transport/Network Layers St(atus): ( S) Internet Standard (PS) Proposed Standard (DS) Draft Standard ( E) Experimental ( I) Informational Steve Coya (scoya@cnri.reston.va.us) Cooper [Page 9] Internet Monthly Report April 1993 INTERNET PROJECTS ----------------- ANSNET/NSFNET BACKBONE ENGINEERING ---------------------------------- Network Status Summary ====================== The deployment of the AIX 3.2 operating system on the T3 routers began on April 30th. The deployment will continue through May 21st. This software will increase the on-card forwarding table capacity to support 12,000 destinations, and the subsequent release of AIX 3.2 software scheduled for summer '93 will increase the forwarding table capacity to support 25,000 destinations. Backbone Traffic and Routing Statistics ======================================= The total inbound packet count for the network (measured using SNMP interface counters) was 36,527,140,345 on T3 ENSS interfaces, up 15.2% from March. The total packet count into the network including all ENSS serial interfaces was 40,788,225,452. As of April 30, the number of networks configured in the Merit Policy Routing Database was 11248 for the T3 backbone. Of these, 2846 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 8239, up 6.1% from February. Average announced networks on 4/30 were 8181. AIX 3.2 Migration Plan Status ============================= The T3 backbone software upgrade to support the AIX 3.2 operating system began on April 30th. A revised postscript file illustrating the phased deployment at each POP CNSS and adjacent ENSS is located on ftp.ans.net in /pub/info/aix32dpmap.ps and may be summarized as follows: Phase I (April 30) - Washington D.C. Phase II (May 7) - Seattle/Denver, San Francisco/Los Angeles Phase III (May 14) - Greensboro/Atlanta, Houston/St. Louis Phase IV (May 21) - Hartford/New York City, Cleveland/Chicago Cooper [Page 10] Internet Monthly Report April 1993 Rcp_routed Routing Software Changes =================================== During April two versions of the T3 router software daemon, rcp_routed, were deployed. The first entitled "Third Party Routes" primarily addressed problems handling third party routes advertised by peer routers. Deployment of this began in March and ended in early April. A second version called "AIX 3.2 Multipath" addressed multipath routing in AIX 3.2, generated third party routes, and fixed some memory leaks. Release notes are available in: ftp.ans.net:/pub/info/t3-rcp_routed/Release-Notes FDDI Problem ============ During April, there were a few problems experienced at ENSS sites that use FDDI interfaces. There was a problem identified on E145 (also observed on E133) where packets are blocked from traversing an ENSS FDDI->Ethernet path. The problem has occurred three times during April. We are working on a fix for this, and the an automatic FDDI interface reset has been instrumented in the interim. Routing Stability Measured on the T3 Network ============================================ Internal routing stability measurements are made by monitoring short term disconnect times (disconnects of five minutes duration or less). During February the overall stability approached 99% (no internal disconnects in any part of the network 99% of the time) and all individual nodes reported 99.8% stability or better. Overall stability in March was down to 97.5% or 99.1% excluding instability during the configuration windows. Overall stability in April was 96.1% or 97.2% excluding instability during the configuration windows. E206 (CERN - Geneva, Switzerland) remained the most unstable node due to recurring T1 circuit problems. CERN was only stable 97.9% of the time which accounted for much of the overall 96.1% figure. Of the 15 hours, 10 hours was outside the config window (9:58 98.6% stable). Much of the remaining time was during the config window when the circuit was taken for testing. E130 (Argonne) and E128 (BARRnet) each experienced instability due to a memory paging problem (described below). E130 experienced 5.25 hours of instability (5:28 99.2% stable) of which 4 hours was outside of the config window (4:02 99.5% stable). E128 experienced Cooper [Page 11] Internet Monthly Report April 1993 3.5 hours of instability (3:35 99.5% stable) with 2.5 hours outside the config window (2:38 99.7% stable). A new installation, E229, saw 2.5 hours of instability, mostly early in April just prior to the production activation of the node. A few nodes suffered adapter hardware or microcode problems. These were E133 (Cornell) with 1:35 (99.78% stable), E145, (Fix-E) with 1:04 (99.85% stable), E136 (College Park) with 1:03 (99.85% stable), and E168 (OARnet) with 0:56 (99.87% stable). E133 only experienced 0.5 minutes of instability outside the config window, since the outage fell within the window. E145 had 0:18, E136 had 0:20, E168 had 0:25 minutes of instability outside the config windows. These are all better than 99.9%. The outages time incurred when replacing a failing interface is generally much longer than the outage that the failing interface causes, consequently the bulk of the instability is during the config window. Of the remaining routers, 24 reported between 15-60 minutes of outage time. The remaining 57 reported under 15 minutes of instability (better than 99.97%). If the config windows are excluded, only 4 routers, E206, E130, E128, and E229 reported over 26 minutes of outage. There were 9 routers that reported 10-26 minutes of instability. Paging Problem at E130 (Argonne) and E128 (Barrnet) =================================================== On April 6th-9th, E130 experienced intermittent routing instability. Most of this outage occurred during weekend hours. On April 17-20 E128 (BARRnet) experienced similar problems. There were a number of problems occurring which in combination caused AIX software memory paging problems. One problem on E128 had to do with the FDDI ring going down. A larger than normal number of internal buffers (mbufs) used by the networking code were consumed while this condition existed. This reduces the amount of memory available for normal processes such as the routing daemon and network management programs, etc. This was addressed by reducing the requirement for mbufs for TCP buffering for BGP sessions, and by correcting problems with the FDDI ring. This improved but did not solve the problem. The next problem involved flapping FDDI peers which caused a great deal of logging that resulted in a very large system messages file created on April 17. The reading of the system messages file by another process induced routing daemon memory paging problems on the node. The solution to the problem involved both reducing the Cooper [Page 12] Internet Monthly Report April 1993 routing daemon memory size (since the problem was associated with paging), and the splitting of the large log file. A new version of the routing software will be deployed in mid May. Notable Outages in April '93 ============================ E132 (Pittsburgh) lost T3 connectivity due to power problems on 4/11. E168 (OARnet) suffered an extended outage to hardware failure on 4/23. E173 (ITESM) suffered extended outages due to power problems on 4/5, 4/11, and due to radio fade on 4/16. E206 (CERN) suffered extended circuit outages on 4/13, 4/16, 4/23. Xlink (Germany) suffered an extended circuit outage on 4/6. C11 (San Francisco) became unreachable on 4/3 causing an outage to E159, E178, E187, E229. C17 (Los Angeles) suffered an HSSI card hang on 4/10 causing an outage to E156, E170, E215, E216. Jordan Becker BARRNET ------- Membership Update Date: 5/3/93 Member Organizations: 168 New Members, April: California Academy of Sciences, Austin Scientific, Affymax Research, Walnut Creek CD ROM, Electronics For Imaging Publications BARRNet has resumed publication of its newsletter, The BARRNetter, distributed quarterly to its members. The BARRNetter covers the latest Internet news, noteworthy current events, graphics, maps, and BARRNet news. The Spring edition is due out in May. Cooper [Page 13] Internet Monthly Report April 1993 BARRNet began publication of its electronic newsletter, "Heard on the Net" (HOTN), which is distributed via email to BARRNet's membership. By agreement with Newsbytes News Network, HOTN carries selected Newsbytes articles relevant to the Internet community, as well as an eclectic selection of news, resources, reviews, interviews, opinions, humor, and other items of interest to BARRNet's membership. The first issue of BARRTech Notes, technical papers of interest to the technical personnel of BARRNet's membership organizations, was published in April, addressing NTP (Network Time Protocol). 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. BARRNet info@barrnet.net Pine Hall, Rm 115 Phone: 415-725-1790 Stanford University Fax: 415-723-0010 Stanford, CA 94305-4122 John Hoag (jhoag@barrnet.net) BOLT BERANEK AND NEWMAN INC. ---------------------------- Defense Simulation Internet (DSI) The DSI supported three demonstrations this month as well as ongoing testing for a major demonstration in May. These were all successful. The ST2 software release is in beta test. Some bugs still exist, but these are being fixed as the beta test period continues. More sites will be added to the beta test over the next couple of weeks. Several WPSen were relocated to different sites to help reduce backbone circuit costs. In addition, a second WPS was added to the D.C. area and another was installed in Norfolk, VA to support the large number of sites in this area. A new release of Wideband Packet Switch (WPS) code to support ST2 was deployed on all 11 WPSen. Increased usage on the network is exceeding the capacity of the T1 backbone. The planning process for increasing the backbone capacity has begun. Cooper [Page 14] Internet Monthly Report April 1993 Scaleability Work is progressing on adding statistics collection to the flow- level network simulator, and we are working on an analysis environment for analyzing simulation results. (See December '92 Internet Monthly Report for more details about this project and the toolset being developed.) Real-time Multicast Communications and Applications We are currently implementing the shared streams service, using the Fair Share resource reservation code as a basis for resource enforcement. An initial version of Resource Coordination Objects (RCOs) is being designed and implemented to support user-level reservation for shared streams. We are also looking at additional applications for the four real- time multicast services in this project (anycasting, multi-level flows, shared streams, RCOs). One possibility is the use of RCOs for network-wide resource reservation, a need that has become apparent in some DARTnet experiments. During the month of March, we also worked on improvements to the video server in two areas. First, we substantially improved the interface between the workstations that control the Parallax codecs used to convert analog video to digital video, transmit the digital video across a wide area network, and receive and display the video in a window on a workstation. This work provides the basis for two new capabilities. First, the video server can make use of multicast communications to support multiple people viewing the same video simultaneously. In earlier versions of the video server, if multiple people requested the same video, a separate unicast data connection was initiated for each user. In the new version of the video server, if a user requests the same video (for example, a broadcast channel) as is being transmitted to another user, then the initial unicast data connection is broken and a multicast data connection is established to the two or more users who have requested the same video. Second, multicast digital video streams can now be broken into multi-level (i.e. multi-bandwidth) encodings. The multi-level data stream capability will allow multiple users to receive the same video stream over different bandwidth connections; one user may receive a high quality, high bandwidth video stream over high bandwidth network connections, while another user can simultaneously view the same video at a lower quality over lower Cooper [Page 15] Internet Monthly Report April 1993 bandwidth network connections. One network mechanism that can be used to support this work is the multi-level flows communications service that we are developing as part of this project. In the past month, we have also made improvements to the video catalog service, a distributed service which catalogs text information used to index video. In earlier versions of the video server, the host name of all video catalogs was stored at a well known host, referred to as the catalog of catalogs. The video applications used unicast communications to contact the catalog of catalogs and obtain the names of hosts that contained video catalogs. In the new catalog service, workstations that contain video catalogs join the video catalog multicast group; thus, the information as to where video catalogs are located resides with the servers and not with the applications. Applications send queries to locate video information directly to a video catalog multicast address and the applications receive responses from all servers that contain video information relevant to the request. The use of multicast for this service provides an important capability for wide area video information servers. The multicast capability allows video server sites to change the machines hosting catalog services, and it allows sites to add and remove video servers (and their associated catalogs) without having to modify video applications and without having to update a centralized database of video service locations. (See January '93 and March '93 Internet Monthly Reports for more details about the application and communications services being developed.) Inter-Domain Policy Routing During the month of April, we completed the IDPR pilot installation. Many thanks to Brad Passwaters, Shehzad Merchant, Walt Prue, Tony Ballardie, and Jeff Burgan for assistance in providing and booting machines and installing software. The IDPR pilot demonstration will run through May 1993. We will provide an informational RFC on the pilot and the perceived results, at the conclusion of this time period. Cooper [Page 16] Internet Monthly Report April 1993 We have also been proceeding with the design of multicasting in a policy-based environment. In particular, we have been making modifications to both the route generation procedure and the path control protocol portions of IDPR, in order to accommodate multicast. We plan to experiment in the DARTnet this summer with prototype software and to release an Internet Draft describing the modifications necessary to do multicasting in the context of IDPR. Karen Seo CONCERT ------- The number of accounts connected to the CONCERT network grew by 21 percent during the first quarter of 1993. CONCERT is currently testing the LARSE Mega-T inverse multiplexer to deliver a 4Mbs V.35 link using three T1s between the UNC- Charlotte campus and the CONCERT hub at Research Triangle Park. For the past several weeks CNIDR (Clearinghouse for Networked Information Discovery and Retrieval) has provided an alternate server site for the popular Veronica resource discovery software developed at the University of Nevada-Reno by Steve Foster and Fred Barrie. Veronica (very easy rodent-oriented net-wide index to computerized archives) is an "archie for gopher." The CNIDR server receives approximately 5000 queries daily from people searching gopherspace menus. On April 9, 1993, CNIDR released freeWAIS 0.1, the first upgrade to WAIS in over 6 months. freeWAIS incorporates many of the enhancements such as Boolean searching, phrase searching, stemming, access control, and better document relevance scoring, and a redundant directory-of-servers. freeWAIS-0.1 is designed to be a "backwards compatibility" module for freeWAIS-1.0, which will provide full Z39.50-92 support and is nearing completion. freeWAIS 0.1 is available via anonymous ftp from ftp.cnidr.org. For general information and timely announcements about CNIDR, send e-mail to info@cnidr.org. During the month of April, VISTAnet (one of the five testbeds sponsored by CNRI) achieved partial connectivity over an experimental Broadband ISDN network operating at 622Mbps. The VISTAnet network operates between the CRAY-YMP at the North Carolina Supercomputing Center, the Pixel Planes-5 graphics processing engine at University of North Carolina at Chapel Hill, and a medical workstation at UNC Memorial Hospital Radiation Cooper [Page 17] Internet Monthly Report April 1993 Oncology department. Networking services are provided by Bell South and GTE. The driving application for VISTAnet is real-time radiation therapy planning. The VISTAnet network connects the three computational resources using HiPPI to a Network Terminal Adapter (NTA). The NTA acts as a HiPPI-to-ATM/SONET modem at SONET rates of OC-12c (622Mbps). Two switching nodes will provide switched services, a Fast Circuit Switch provided by GTE and an ATM switch provided by Bell South. Only partial connectivity was achieved since the GTE circuit switch must still be added to the network. Using HiPPI test equipment and the endpoint hosts, data was transmitted and received data at rates of up to 400Mbps with an acceptable quality of service. For VISTAnet the target quality of service is less than 4 lost/errored HiPPI packets in 1 hour of operation. Also experimented with were the ability and limitations of a BISDN network to handle very high speed burst data traffic in tandem with low speed traffic. These experiments gave some insights into the limitations of statistical multiplexing of ATM networks. We also developed some guidelines for traffic shaping for both high speed and low speed traffic. by Tom Sandoski CSUNET (THE CALIFORNIA STATE UNIVERSITY NETWORK) ----------------------------------------------- The California State University Network has some newly signed members for Internet access via CSUnet: C* Kern County Office of Education (KCOE) [Bakersfield, CA] C* San Diego County Supt of Schools (SDCSS) C* Ventura County Supt of Schools (VCSS) O* Far West Labs (FWL) [San Francisco, CA] O* Kern High School District (KHSD) [Bakersfield, CA] P* Taft Community College (TAFT) [Bakersfield, CA] C* Sonoma County Library (SCL) *status: C=contract completed, O= operational, P=contract pending The county educations offices' plan to provide Internet access for their districts and schools through the new connection to CSUnet. Cooper [Page 18] Internet Monthly Report April 1993 New projects: As the POSSIBLE 21st campus of the California State University, the planning office of CSU Monterey Bay (CSUMB) is being connected to CSUnet as soon as possible. CSUnet is designing a Macintosh network to connect the new campus to other CSU campuses and government offices using the existing CSUnet AppleTalk WAN. CSUMB wants to move very quickly (ie. they plan to start classes in 28 months!). Networking equipment will be purchased by April 15, 1993. Mike Marcinkevicz (mdm@CSU.net) ISI --- GIGABIT NETWORKING Infrastructure Joyce Reynolds atteded the NASA-NSI workshop in San Diego, April 27-29th. Thirteen RFCs were published this month. RFC 1441: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Introduction to version 2 of the Internet-standard Network Management Framework", April 1993. RFC 1442: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Structure of Management Information for version 2 of the Simple Network Management Protocol (SNMPv2), April 1993. RFC 1443: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Textual Conventions for version 2 of the Simple Network Management Protocols (SNMPv2)", April 1993. RFC 1444: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Conformance Statements for version 2 of the Simple Network Management Protocol (SNMPv2)", April 1993. Cooper [Page 19] Internet Monthly Report April 1993 RFC 1445: Galvin, J., (Trusted Information Systems), K. McCloghrie (HUGHES LAN Systems), " Administrative Model for version 2 of the Simple Network Management Protocol (SNMPv2)", April 1993. RFC 1446: Galvin, J., ((Trusted Information Systems), K. McCloghrie (HUGHES LAN Systems), "Security Protocols for version 2 of the Simple Network Management Protocol (SNMPv2)", April 1993. RFC 1447: McCloghrie, K., (HUGHES LAN Systems), J. Galvin, (Trusted Information Systems) Party MIB for version 2 of the Simple Network Management Protocol (SNMPv2)", April 1993. RFC 1448: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Protocol Operations for version 2 of the Simple Network Management Protocol (SNMPv2)", April 1993. RFC 1449: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Transport Mappings for version 2 of the Simple Network Management Protocol (SNMPv2)", April 1993. RFC 1450: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Management Information Base for version 2 of the Simple Network Management Protocol (SNMPv2"), April 1993. RFC 1451: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Manager-to- Manager Management Information Base", April 1993. RFC 1452: Case, J., (SNMP Research, Inc.), K. McCloghrie (HUGHES LAN Systems), M. Rose, (Dover Beach Consulting, Inc.) S. Waldbusser (Carnegie Mellon University), "Coexistence between version 1 and version 2 of the Internet-standard Network Management Framework", April 1993. RFC 1453: Chimiak, W., (BGSM), "A Comment on Packet Video Remote Conferencing and the Transport/Network Layers", April 1993. Ann Westine Cooper (Cooper@ISI.EDU) Cooper [Page 20] Internet Monthly Report April 1993 MULTIMEDIA CONFERENCING This month, the Real-time Tranport Protocol (RTP) was integrated into PVP, ISI's packet video program. Now implemented in several real-time packet audio and video programs, RTP has allowed interoperation among different implementations of these tools. A parameter -N was added to PVP to allow a name to be transmitted in the RTP protocol so nv will display it when PVP and nv interoperate. In addition, enhancements were made to PVP to make it more readily configurable to work with a Bolter codec or a PictureTel codec. Steve Casner gave a talk "Internet Video -- Meltdown or the Next Email?" at the National Net '93 conference in Washington, D.C. Eve Schooler, Steve Casner (schooler@isi.edu, casner@isi.edu) JVNCNET ------- JvNCnet-Global Enterprise Services, Inc. B6 von Neumann Hall, Princeton, NJ 08544 1-800-35-TIGER I. New Information A. New on-line members (fully operational April 1993) BASF Corp., Parsippany, NJ Datacom Global Communications, Princeton,NJ Transwitch Corporation, Shelton, CT Cape Henlopen High School, Lewes, DE DC Public Schools/Center for Educational Change, Washington, DC Dobbins Area Voc-Tech, Philadelphia, PA DunsNet, Wilton, CT EIRC, Sewell, NJ Francis Scott Key High School, Unionbridge, MD George School, Newtown, PA George Washington High School, Philadelphia, PA Gibbs and Cox, New York, NY Haddonfield Memorial High School, Haddonfield, NJ MCIU, Erdenheim, PA Mount Saint Joseph Academy, Flourtown, PA Neshaminy Schools Ed Services Center, Langhorne, PA Parkview Elementary, Westville, NJ Riverview Middle School, Denton, MD Souderton Middle School, Souderton, PA Springfield Schools, Philadelphia, PA Cherry Semiconductor, E. Greenwich, RI Cooper [Page 21] Internet Monthly Report April 1993 EMCORE, Somerset, NJ Health Research & Educational Trust, Princeton, NJ Knight Ridder Financial. New York, NY Macro Corp., Horsham, PA Prism, Middletown, NY Pros from Dover, Hopewell, NJ Science Press, Ephrata, PA TMA, Princeton, NJ VA Medical Center (UMDNJ), East Orange, NJ T. Wallace, Wilton, CT D&Z Inc., Philadelphia, PA Electronic Systems Associates, New York, NY II. JvNCnet Symposia: All seminars are open to the public. Location for seminars: Princeton Marriott Forrestal Village College Road, Plainsboro, NJ A. Title: Network management and operations Date: May 26, 1993 Time: 8:30 to 4:30 Audience: Network operations and technical staff of TCP/IP-based networks including system administrators who need to know how to organize a well-functioning operations system and proper networking monitoring. Anyone in the Internet community interested in learning about network operations management will benefit. What You Will Learn The attendee will learn the fundamentals associated with network management and operations: _ LAN and WAN management including _ Variables to monitor and associated monitoring process _ Troubleshooting for corrective and preventative fixes _ Network weaknesses and planning _ Capabilities of network monitoring software including JvNCnet-authored software and technical overviews of commercial network monitoring packages. Speakers include: Christopher Tengi, Princeton University; John Scoggin, Delmarva Power and Light; Heidi Iacurto, Cisco Systems; Vikas Aggarwal and Steven Williams, GES, Inc. B. Title: Systems administration on the Internet Date: June 29, 1993 Time: 8:30 to 4:30 Cooper [Page 22] Internet Monthly Report April 1993 Audience: Network technical staff including system administrators of TCP/IP-based networks who are responsible for setting up network services at their site, people who will be managing a new Internet system, and anyone new to Internet who is interested in learning about systems administration. What You Will Learn sendMail architecture and the anatomy of an email message, Sendmail and nameservers, Sendmail configuration basics, Rewrite rules, Domain hiding, reverse aliasing, Versions of sendmail, and Sources of information and help. _NEWS: CNews, NNTP reference implementation, INN, and introduction to newsreaders. __Domain Name Service includes redundancy and delegation, primary, secondary and subdomains; types of records (such as SOA, MX records, CName), initial and final nameservers, reverse name lookups, nameserver updating, and troubleshooting. Attendees will receive explicit concepts to properly set up these services on a new system and ways to streamline a current system. Speakers: Neil Rickert, Northern Illinois University; Richard Salz, Open Software Foundation; and Thomas Brisco, Rutgers University REGISTRATION: Pre-registration preferred. Check or money order payable to Global Enterprise Services, Inc. Mastercard/Visa accepted or fax registration to: 609-258-2424. Mail to: GES, Inc., Attn; R. Hammer, B6 von Neumann Hall Princeton, NJ 08544 Early bird registration by May 14 for the May 26 class and by June 15 for the June 29 class. Early bird rate: One Day After early bird rate: One day JvNCnet members $250 JvNCnet members $295 Non-members $275 Non-members $325 Continental breakfast, lunch, course documentation and/or book complementing each protocol will be provided for each attendee. by Rochelle Hammer (hammer@jvnc.net) Cooper [Page 23] Internet Monthly Report April 1993 MERIT/NSFNET ENGINEERING ------------------------ During April, the set of major activities included use of the Informix database system for all NSFNET configuration services; changes to the international IP network registration process; progress on automating the submission of database update requests from midlevels; further analysis of active and inactive network routing announcements; progress in implementation of IDRP; and progress in testing and implementation of TUBA. Informix Database System in Production ====================================== Full production for the new Policy Routing Database (PRDB) and NSFNET Configuration System began with the configuration run on April 2. The system is used for registration of network routing announcements as well as topology configuration for the ANSNET. A set of tools for parsing and automatically entering database updates from e-mail templates is now in production. Automated Submission of Network Announcement Change Requests ============================================================ Requests for network numbers to be added to the NSFNET PRDB have traditionally been handled by submitting templates via e-mail to the Merit staff. Recently we have significantly improved the productivity of configuration operators by automating much of the handling of the requests and subsequent database entry process. Our current focus is on the submission process. We are working on a tool which will allow a midlevel network engineer to interactively generate a template. Initially it will available as a 'login' style service on a host at Merit, as a server that allows the information fields for network information to be filled in. The interactive program will perform some of the validation and advance lookups of information to avoid manual cross-checking by operators. For example, the InterNIC has provided a machine- parsable output format for whois queries, which can be used to allow the organizational or point-of-contact information to be directly copied from whois into the Merit database. The program will also query Merit's PRDB server to present the current routing configuration relevant to the reqest being built. We expect the first release of the interactive process to be available in early May. Cooper [Page 24] Internet Monthly Report April 1993 Changes to International IP Network Registration ================================================ Merit's "IPREGISTER" service is provided to network operators and administrators in countries which are becoming connected or need assistance in connecting to the Internet and NSFNET. The goal is to assist in achieving connectivity to the NSFNET as quickly and efficiently as possible within contraints of agency policies. The service was orginally established when IP numbers were allocated with a "connected" or "unconnected" flag. At that time, NSF had to sponsor an organization in order for them to receive an IP number with the "connected" flag. It was important for non-domestic networks to receive this classification if they desired to communicate with scientists and researchers via the NSFNET backbone. "Connected" status was a requirement for routing traffic on the NSFNET backbone. Since NSF was unable to know the appropriateness of sponsoring each and every non-domestic network, and there was not a consolidated European, Asian, South American, and other regional networking organization to consult, NSF established reciprocal agreements with designated representatives within countries. This action translated into a procedure which was implemented by Merit. One of the steps of the procedure was to delay addition of non-domestic networks into the NSFNET routing database until the designated representatives from that country acknowledged and confirmed this addition. While this procedure served us well during the days when "connected" status existed and when the IEPG (Intercontinental Engineering Planning Group), the RIPE NCC, and the EBONE were non-existant, the procedure was out-dated and delayed the desired connectivity. Merit has revised its procedure so that we eliminate the requests for concurrence to designated representatives of foreign countries when configuring the NSFNET routing tables. We no longer need to delay routing of non-domestic networks into the NSFNET routing database while waiting for responses to such requests. At the same time, it is no longer necessary for NSF to preapprove access on a network by network basis. Except for a list of specific countries, all non-US routing requests are handled without any approval delay. A bi-weekly report is now produced listing all of the non-US networks added during the configuration run. This works nicely with the automated processing of routing announcement change templates that has been added recently. One important task of IPREGISTER has not changed, and that is in helping non-domestic networks obtain various network services. Among Cooper [Page 25] Internet Monthly Report April 1993 these are submitting requests to the InterNIC or RIPE for IP numbers, and making sure the whois entry is updated and that it corresponds to what is in the Merit Policy Routing Database as well as the RIPE entry, if appropriate. Further Analysis of Active/Inactive Routing Announcements ========================================================= Known as "silent nets", a substantial population of networks in the configuration database are not announced to the backbone. While we are confident that the backbone router tables will not overflow due to growth in announced networks, it is our goal to limit the set of networks in the backbone configuration files to those which are actually expected to be announced by midlevels to the backbone. A similar goal has been to analyze the routing tables over time and determine whether the configuration of Autonomous System path preference for each network matches the actual announced preference. In response to our messages to AS administrators, we have received requests to delete over 400 silent nets. We have also been able to reconfigure the announcement preferences for many networks to bring the number of primary network announcements matching the configured path to 99%. The "OFFNET" database process collects routing table dumps every 15 minutes from the backbone for analysis. A summary of reports and information generated from this database follows. Graphs showing growth of configured networks as compared to actual announcements, and the AS path preference comparison, can be found via anonymous FTP from the directory merit.edu:pub/nsfnet/offnet. OFFNET statistics summary: 04/30/93 11248 configured networks 8824 configured minus April "silent nets" (see below) 8239 maximum announced 8181 average announced 7969 minimum announced 04/01/93 95.0 average % configured primary matches announced primary 04/30/93 99.1 Cooper [Page 26] Internet Monthly Report April 1993 The maximal number of announced networks of each month: MONTH MAX RATE(%) ===== ==== ====== 07/92 4596 08/92 4866 5.9 09/92 5070 4.2 10/92 5432 7.1 11/92 5772 6.3 12/92 6239 8.1 01/93 6654 6.7 02/93 7037 5.8 03/93 7767 10.4 04/93 8239 6.1 (Avg monthly growth rate: 6.7%) Networks Silent for 30 days (04/01 - 04/30): 2424 Networks Silent for 7 days (04/27 - 05/04): 2846 IDRP and TUBA Implementation Status =================================== Some Merit staff have been involved with implementation of OSI protocols, including TUBA (TCP and UDP over CLNP) and IDRP. The IDRP implementation is progressing well, and a demonstration was given to the FAA and Mitre staff on April 20. Merit will participate in the European JENC conference demo of TUBA in May. Mark Cochran of IBM visited Merit to assist in AIX 3.2 kernel development for TUBA, IDRP and CLNP. Mark Knopper, (mak@merit.edu) MERIT/NSFNET/INFORMATION SERVICES --------------------------------- During the month of April, Romania and Bulgaria were the most recent nations to begin routing traffic over the NSFNET Backbone Service, as a result of their reclassification to favored nation status by COCOM. The text of the report "Review of NSFNET" by the Office of Inspector General of the National Science Foundation, followed by the text of NSF's response to the OIG report, is available for Anonymous FTP from the host nic.merit.edu as /nsfnet/ig.report . This document is also available via electronic mail by sending a message to Cooper [Page 27] Internet Monthly Report April 1993 nis-info@nic.merit.edu and specifying send ig.report as the first line of text (not subject) of the message. "Extending the Benefits," the National Net '93 program held April 14 through 16 at Loews L'enfant Plaza Hotel, Washington, D.C. was attended by Jim Williams, Merit Associate Director for National Networking; Ellen Hoffman, Merit Manager of Information Services; and Laura Kelleher and Steve Burdick of Merit's Information Services staff. Kelleher and Burdick presented demonstration and discussion of Merit's "Cruise of the Internet." The colorful, computer-based tutorial, developed for new and experienced users of the Internet, is available in Gopherspace and via Anonymous FTP from the host nic.merit.edu. The Cruise for the Macintosh and associated readme file are in the directory /resources/cruise.mac. The DOS Windows version of the Cruise with readme files is found in the directory /resources/cruise.dos. Kelleher also spoke at a meeting of the Delaware Library Association, where she presented "A Cruise of the Internet," overviewing the many and varied resources of the Internet and the means to discover them. Elise Gerich, of Merit Internet Engineering, attended meetings of the IEPG and RIPE held in Amsterdam, The Netherlands. Jo Ann Ward (jaw@merit.edu) NEARNET (NEW ENGLAND ACADEMIC AND RESEARCH NETWORK) --------------------------------------------------- During the week of April 12, NEARnet held a semi-annual security test. The test involved calling the designated security contacts at all NEARnet sites to confirm our readiness in the event of a Network Security Emergency. The test went very well with approximately 87% of the sites contacting NEARnet personnel in response to the test. As part of the FARNET "Service Excellence" program, two groups of NEARnet liaisons participated in a focus group which analyzed their perspectives of NEARnet/Internet services and concentrated on suggested areas for improvement. The NEARnet User Services staff has distributed a copy "The Whole Internet User's Guide and Catalog" by Ed Krol, free of charge, to the information liaison at every NEARnet member organization as Cooper [Page 28] Internet Monthly Report April 1993 part of the information and training services for 1993. The April issue of the "NEARnet This Month" bulletin has been distributed. Past issues are available via anonymous FTP at nic.near.net, in the directory newsletters/nearnet-this-month. by Corinne Carroll NNSC, UCAR/BOLT BERANEK and NEWMAN, INC. ---------------------------------------- The new InterNIC team begin providing user and information services on April 1st. The transition from NNSC to the new InterNIC team, which was announced in the March 1933 Internet Monthly Report, has been proceeding smoothly. The last issue of the NNSC-produced newsletter should be available in May. * NNSC Help Desk The NNSC Telephone Hotline Number, 1-617-873-3400, is now forwarded to 1-800-444-4345. The Electronic Help Mailbox address now forwards mail for nnsc@nnsc.nsf.net to info@internic.net. * Important files from the /usr/ftp directory on nnsc.nsf.net have been moved to the InterNICs. At INFORMATION SERVICES Pathname below /usr/ftp Pathname below /usr/ftp on nnsc.nsf.net on is.internic.net nsfnet/referral-list infosource/getting_started/ getting_connected/providers_na/ internet-access-provider-list Internet Monthly Reports (yy=year mm=month) nsfnet/report-yymm infosource/internet_info_for_everybody/ imr/report-yymm At DIRECTORY AND DATABASE SERVICES Directory pathnames below /usr/ftp are the same as they were on nnsc.nsf.net, except for the-scientist. Cooper [Page 29] Internet Monthly Report April 1993 Description of Directories Pathname on ds.internic.net Internet Resource Guide resource-guide Internet Policies and Procedures for Educational Organizations policies-procedures "Shadow" or "Mirror" Directories Internet Engineering Steering Group iesg Internet Engineering Task Force ietf Internet Drafts (documents in the process of becoming RFCs) internet-drafts Internet Society documents isoc Request for Comments reports rfc Online version of THE SCIENTIST, a bimonthly newspaper for scientists pub/the-scientist * NSF Network Newsletter The NNSC is in the process of publishing its final issue of the NSF Network Newsletter, which will appear in May 1993. This issue will include the NSF Network map and site list. * Other Services For information about NNSC services not mentioned here. please call the new InterNIC phone number 800-444-4345. Charlotte Mooers OARNET ------ IETF Meeting in Late March The 26th Internet Engineering Task Force meeting was held at Columbus, OH, hosted by OARnet and The Ohio State University. The conference was very well attended, and went off excellently. The terminal room was stocked with 25 PCs, running software donated by FTP Software, Inc. In addition, there were terminal server ports, ethernet and appletalk connectors for people bringing in their own laptops. As an experiment, dialup IP access was provided for all who requested so. A total of 45 hours of async PPP access, and 11 hours of async SLIP access were logged by the attendees. Cooper [Page 30] Internet Monthly Report April 1993 In keeping with the IETF tradition, all the plenaries, and at least two of each session was simulcast to the Internet using packet audio and video. Cameras and a VCR for this purpose were donated by the Ohio Visualisation Laboratory. To provide reliable access, LCI International, and Ohio Bell telephone company donated a total of 3 T1 circuits for the IETF. One of the T1s was used to carry multicast traffic for the simulcast exclusively, and connected the terminal room directly to the OARnet POP at Cleveland, while another one carried unicast traffic from the terminal room to the nearest OARnet backbone POP; the third T1 was used to interconnect the OARnet POP at Cleveland to the ANS POP at North Royalton. At peak periods, OARnet offered approximately 400Kb/sec of IETF audio and video traffic to the ANS backbone and about 100Kb/sec of IETF terminal room traffic, or about 500Kb/sec in total. At this IETF, most of the major "IPv7" contenders, PIP, TUBA, and SIP/IPAE also demonstrated current implementation status. Ashley Burns UCL ---- 1. The INRIA Video Conferencing System Software has been merged with our CODEC software so we can now generate video from a sparc or SGI and send over IP (multicast) and receive, encapsulate in H.221 (with CRCs!) and hand to a CODEC, and vice versa. Currently, this is working at 64kbps and 128 kbps - we will move to higher speeds as and when. 2. We hosted one of the schools for the Global Schoolhouse Project's first video class over the Internet on April the 26th succesfully (after a number of successful demos where the first hop was running over our campus FDDI, on the day, this broke and we had to fallbacvk to a copper voicegrade line (driven at 256kbps!) from UCL to the UK international gateway with some clever last minute re-routing. Details reports no doubt will appear elsewhere. Many thanks to the Cornell people for introducing us to CUSeeMe (yet another neat conferencing program!). J Crowcroft now knows more about MACs than he cares to admit. 3. We hosted the first SuperJANET demonstration day on te 28th - as reported before, this net is now being bought up, and many high speed applications were shown to the various sponsors. John Crowcroft (j.crowcroft@CS.UCL.AC.UK) Cooper [Page 31] Internet Monthly Report April 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 Mar 29 - Apr 2, IETF, Columbus, Ohio Apr 5-19 TCOS WG, Boston (tentative) Apr 14-16 National Net'93, Wash D.C. (net93@educom.edu) Apr 18-23 IFIP WG 6.6 Third International Symposium on Integrated Network Management, Sheraton Palace Hotel, San Francisco, CA (kzm@hls.com) Apr 20-22 ANSI X3S3.3, Orlando, FL 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 INET 93 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 Cooper [Page 32] Internet Monthly Report April 1993 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 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] 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 0016jwshwr.com.cn
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