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Maps Working Group
by Daniele Bovio 11 Dec '92

11 Dec '92

Folks, as the people attending the last RIPE meeting in Paris may remember, I volunteered to chair the network maps group and to kick off once more the discussion on this topic. A list has been created at the RIPE NCC for this purpose: maps-wg(a)ripe.net The list will be used essentially to discuss and find out what we think about the following: * are maps useful or not. * is it worth producing them or not. * should maps be produced centrally (NCC) or in a distributed fashion (various regional networks should provide them) * should/could maps be produced from the RIPE database or not. * what amount of manpower we estimate necessary to produce and maintain network maps (both centrally and distributed). * any other issue related to the production of maps I have forgot and you would like to suggest. (not necessarily in this order ;-)) If you feel interested in discussing these topics please send a mail to: maps-wg.request(a)ripe.net to be added to the list. The idea is to go to the January meeting with a preliminary draft document answering these questions, finalize it in a parallel session, and eventually present the outcome to the RIPE assembly. Best Regards d.

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Re: Nsfnet and Ebone stats
by Hank Nussbacher 11 Dec '92

11 Dec '92

As to Nsfnet: Seems to me that if one is gonna plunk down millions of dollars into a federally subsidized network infrastructure to replace some existing infrastructure - it should at least be upward compatible in all aspects - which includes statistical monitoring and recording. If it is impossible to do now - then someone in NSF/ANS/Merit should come out and say it. As to Ebone: I realize with ciscos it is impossible to do. But we can at least create reports of ifInOctets/ifOutOctets per Ebone backbone link, as well as ifInErrors/ifOutErrors and perhaps the downTrap to see how many times a link goes to the down state and for how long. Data Communications just had an interesting issue with an article about line reliability and it showed that on average in Europe line reliability was around 99.1% as opposed to the CCITT recommendation of 99.6% for intercontinental links and 99.9% for continental links. I have been monitoring my links and find that I average 30 down states a month sometimes for as short as 8 seconds - and Data Communications goes into this as a synchronization problem between PTTs - which use different synch methods - and they can't tell when a link goes down until you call them. Here is an extract from an article I have written for a local computer newspaper: --------------------------------------------- What are the major causes of a digital telecommunications circuit to go out of service? Synchronization and multiplexing signals on high bandwidth international links is more complicated than on slower speed analog links. Synchronizing at the international level is particularly tricky because different carriers (PTTs) often use different signalling schemes. These synchronization problems usually result in a link disruption of under 2 minutes, long enough to force users off a remote application. Due to the fact that different PTTs use different signalling standards, it is close to impossible for PTTs to monitor digital circuits and instead wait for customers to call them to report circuit outages. PTTs usually show higher availability statistics than customers, since they only start their "down clock" when a customer reports the problem, which is often 15-30 minutes after the line has gone down. Interestingly enough, the higher the data speed, the more reliable the digital data circuit (from the INTUG report): Speed Uptime ------ ------ 768kb 99.99% 384kb 99.94 1544kb (T1) 99.94 1024kb 99.9 128kb 99.88 1984kb 99.88 512kb 99.87 2048kb (E1) 99.56 64kb 99.03 256kb 97 Looking at the above table, users would be recommended to stay away from 256kb circuits and to upgrade as fast as possible from 64kb to 128kb circuits. Almost all higher speed lines (other than 64kb and 256kb) meet the CCITT recommendations. --------------------------------------------- All I am saying is that we need some 'minimal' amount of SNMP recording and reporting and I am sure we are all doing this on our own national level so why not expand it to the Ebone? Hank

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RIPE Meeting - Registration Form
by Anne Lord 10 Dec '92

10 Dec '92

********************************************************************** If you are interested in participating in the 14th RIPE Meeting in Prague, would you kindly fill in the attached form and mail it to meeting(a)ripe.net as soon as possible (DEADLINE Friday, January 8, 1993): ---------------------------------------------------------------------- 14th RIPE meeting Registration and Accommodation reservation form Prague, January 1993 (a) Registration ( ) I would like to take part in the RIPE meeting. ( ) I already have a RIPE badge from a previous meeting. ( ) I need a RIPE badge to be made for me (please state here *exactly* what you wish to be printed on your badge). Name: Affiliation: Country: (b) Accommodation ** We can only make reservations if this form is received before ** January 8th! ( ) Please reserve the following accommodation in Hotel KRYSTAL for the nights of: ( ) Sat Jan 23 ( ) Tue Jan 26 ( ) Sun Jan 24 ( ) Wed Jan 27 ( ) Mon Jan 25 ( ) Please reserve a whole double room for me. ( ) Please reserve a double room for me to share with Mr/Mrs/Ms ------------------------------------------------------------ NOTE: Please be ready to pay your hotel bill in cash in local currency Kcs (1 DM = approx. 18 Kcs) to the staff of the Czech Technical University (not in the hotel) by Tuesday January 26, 1993 noon at the latest. You will get an official receipt. ( ) I shall arrange my own accomodation. c) Visit to Old Town of Prague ( ) I should like to take part in a guided tour through the Old Town of Prague on Sunday, January 24, at 10 a.m. (d) Personal details Please give your name and contact details below. Name: Address: Address: Country: E-Mail Address: ------------------------------------------------------------- Please send your completed form to: e-mail : meeting(a)ripe.net or fax: +31 20 592 5090.

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RIPE meeting - Hotel Details
by Anne Lord 10 Dec '92

10 Dec '92

********************************************************************* 14th RIPE meeting Details of Hotels in Prague Prague, January 1993 The official RIPE meeting hotel is the HOTEL KRYSTAL (***). The hotel is conveniently located not far from the RIPE meeting venue and will provide a focal point for participants wishing to get together outside the meeting hours. A special price has been negotiated with the hotel for guests of the Czech Technical University. A block booking has been made at this hotel. To book accommodation at this hotel, simply fill in the the appropriate part of the registration form that follows this mail. Hotel: single occupancy double occupancy ------------------------------------------------------------------ KRYSTAL (***) (inc. breakfast) 800.- 1100.- J. Martiho 2/407 Prague 6 - Vokovice Phone: +(42 2) 316 4223 316 4231 Fax: 316 4770 There are only double rooms in the hotel. All rooms are equipped with a shower and WC. Directions from the RIPE meeting venue -------------------------------------- To get to the Hotel KRYSTAL from the site of the RIPE meeting, walk about 100 meters along the Solinova Street to the Evropska Street. You can go there by tram or by bus. By tram: use the subway pedestrian pass (take the first right-hand stairway exit) to get to the tram stop. Take tram no. 2 or 26 for 8 stops to the "Koospol" station. Cross the Evropska St and walk back about 150 meters, then turn right and walk about 100 meters to the KRYSTAL (a tall brown and white building). By bus: the bus no. 119 stops immediately before the "Evropska - Solinova" crossroad. Take this bus to the "Koospol" station (3 stops). You should walk back about 200 meters to the tram stop and follow the instructions above. Other Hotels ------------ Details of other hotels close to the RIPE meeting venue are included below for those who prefer to arrange their own accommodation. Approximate prices are given for one night in Czechoslovak Crowns (Kcs). Breakfast is not included. Hotel: single room double room ---------------------------------------------------------------- DIPLOMAT (*****) 6500.- 7500.- Evropska 15 Prague 6 - Dejvice Phone: +(42 2) 331 4177 Fax: 331 4226 Directions from the RIPE meeting venue -------------------------------------- To get to the DIPLOMAT hotel from the site of the RIPE Meeting, walk about a hundred meters along Solinova Street, cross the Evropska Street, preferably (more safely!) by the subway at the "Dejvicka" Underground station. Hotel: single room double room ------------------------------------------------------------------ INTERNATIONAL (****) 2200.- 3000.- Nam. druzby 1 Prague 6 - Dejvice Phone: +(42 2) 320 592 320 828 Fax: 311 6031 Directions from the RIPE meeting venue -------------------------------------- You can get from the site of the RIPE Meeting to the INTERNATIONAL by taking a 15-minute walk, by a tram no. 20 (2 stops to the "Hotel International" terminal station) or by a bus no. 107, 116 or 147 (1 stop). --------------------------------------------------------------------

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RIPE Meeting Announcement
by Anne Lord 10 Dec '92

10 Dec '92

============================ This is to announce that the 14th RIPE meeting will take place: Dates: 25 January 1993 14:00h - 18:00h 26 January 1993 09:00h - 18:00h 27 January 1993 09:00h - 16:00h Venue: Czech Technical University Faculty of Electrical Engineering Technicka 2 Prague 6 Czechoslovakia Local Organiser: Prof. Jan Gruntorad, Czech Technical University Official Meeting Hotel: Hotel Krystal J. Martiho 2/407 Prague 6 - Vokovice Reservations can be made on the registration form (which will follow in a separate mail). The form must be received before January 8th, 1993 if we are to make a booking for you. Registration: Please use the registration form (which will follow in a separate mail as above) to give notice of your coming as soon as possible. Preliminary Agenda: o CIDR and BGP 4 o EMPB IP o EBONE status o NCC Report o Network Traffic Management o Working Group reports o Introduction to demonstrations o GIX and Route Server report General Information: -------------------- Currency: Kcs = Koruna Ceskoslovenska = Czechoslovak Crown 1 ECU = 35 Kcs 1 US$ = 28 Kcs Climate: Typical day temperatures in January are slightly below freezing point. Appended to this announcement: ------------------------------ - directions to the meeting place Documents to follow (separate mail messages): --------------------------------------------- <> details of hotels in Prague close to meeting venue <> registration form for both accommodation (Hotel KRYSTAL only) and attendance at the meeting ================================================================== Information for participants of the RIPE Meeting at the Czech Technical University: How do I get there? ------------------------------------------------------------------ A postscript streetmap of the meeting site will be put in the RIPE document store and will be available by ftp from: /ripe/docs/ripe-current/prague-map.ps. a) By bus from Prague airport: - take bus no. 119 as far as the terminal station (which is the "Dejvicka" Underground station). - Cross the "Evropska" street you are on - preferably by the subway at the Dejvicka Underground station. Take the stairway exit marked "Solinova, Bus, Vysoke skoly". - You will come out of the subway into Solinova Street which will take you directly towards Technicka Street. - take the second left-hand street off Solinova Street - this is Technicka street, where the Technical University is located. - The meeting place (Faculty of Electrical Engineering) is the first building on the right-hand side of Technicka Street. You cannot miss it. b) By train: - take the Underground A-line to the "Dejvicka" terminal station. Use the escalators at the front of your platform and look for the "Solinova, Bus, Vysoke skoly" stairway exit as described above. c) By taxi: - taxi from the Airport to the meeting place should cost approx. 110 Kcs: distance = 13 km; max. price = 8 Kcs/km fixed fee = 6 Kcs - No additional fees should be paid. Please ask for a receipt if in doubt. Directions will be posted inside the Faculty building and there will be people available to point you in the right direction. Public Transport - how much does it cost and where can I get tickets? -------------------------------------------------------------------- Normal ticket price for all types of public transport (Underground, tram, bus, funicular railway) is 4,- Kcs. Tickets should be bought before entering the Underground, tram or bus. You can buy them from supervisors at most entrances to the Underground, or from orange-coloured ticket machines (by the Underground entrances and at many tram or bus stops), or in newspaper kiosks, tobacconists' shops and many food stores. The ticket should be punched IMMEDIATELY after getting on a tram or bus (ask your co-passengers to help you if necessary), and stamped BEFORE entering the Underground premises. Each ticket can be used only once (i.e. a new ticket must be used if you change buses or trams. You can travel any distance on the same ticket if you don't change buses or trams). With the Underground it is slightly different in that your ticket is valid on all Underground lines for one hour. 1-day to 5-day tourist tickets can also be bought mainly in some newspaper kiosks or at Public Transport Offices for 30 Kcs (1-day) to 100 Kcs (5-day); these tickets should not be marked but should be displayed on request.

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Re: Nsfnet stats
by Peter Lothberg 10 Dec '92

10 Dec '92

> As for the Ebone: where can I find statistics such as port usage and > country usage? Port usage, is with the equipment used in Ebone not possible to get, even if you put up a nnstat machine on the DMZ it would not se the traffic switched within a router between it's ports. The T1 network, had one interface per RT-PC and a token-ring interconnecting them, and it was possible to have one dedicated box to do traffic statistics. With todays T3/E3 or FDDI routers, it's not that easy to make all packages avaliable, and have something to analyse them, without basically putting that inside the router hardware. The Ebone as a whole collects only link utalization on a regular basis. However some sites, do collect statistics on source/destination addresses. This is to my knowledge done by Sara in Amsterdam (nic(a)sara.nl) Cern in Geneva (olivier(a)cearn.cern.ch) > Thanks, > Hank -Peter

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Nsfnet stats
by Hank Nussbacher 10 Dec '92

10 Dec '92

Is Merit/ANS ever planning to improve the stats that nis.nsf.net delivers? At first they didn't give any T3 stats. Now they give bnss, pnss and delay and all are more or less useless. The T1 reports which showed traffic by port # as well as by country were very valuable. I have read a few times in the Internet Report that work is being done to provide that level of report for the T3 network - but I have been reading this for the past 2 years now. As for the Ebone: where can I find statistics such as port usage and country usage? Thanks, Hank

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Termination of GMD's EASInet involvement
by Klaus Birkenbihl 07 Dec '92

07 Dec '92

Hello everybody, as you know GMD was contracted by IBM for EASInet to provide NIC- and NOC-services. Many networks beyond EASInet gained profit from these services since EASInet provided a lot of services for more than 700 networks in Europe. Last week IBM informed us that IBM is not in the position to prolongue this contract. The decision is that IBM-ENC will provide some of the services from next year onward the other services will end Dec. 31st 1992. Since this decision differs from recent plans there is a need for some migration work to bring IBM-ENC into place. So IBM asked us to help to migrate during the first 2 month of 1993. Here are the details (current plan): Service Action TCP/IP-NOC Will be moved to Heidelberg (IBM-ENC) till Feb. 28th 93, IDNX-support Will be moved to Heidelberg (IBM-ENC) till Feb. 28th 93, SNA ends on Dec. 31st, EASInet- Will be moved to Heidelberg (IBM-ENC) till office Feb. 28th 93, any other business ends on Dec. 31st, or will be at IBM-ENC from (EASInet- Jan. 1st. office...) We feel we should thank everybody who helped us to make EASInet a success. The colleagues at IBM for an unburocratic and effective cooperation: thanks to Herb Budd, Harry Clasper, Wolfgang Schroeder for taking care at IBM's Eurocoordination. Thanks to Michael Nies for technical support at the NOC and Peter Streibelt for arranging everything that was needed. We'ld like to thank all EASIsites, esp. the colleagues at CERN. Thanks also to the people from the US: IBM, ANS and MERIT. Too many people to be mentioned here. To all of you: we enjoyed your cooperation folks. Thanks to the EASInet EPC for the guidance and for watching the growth of EASInet. (Of cause we meet on Jan. 11th at GMD. Invitation follows.) And thanks to everybody who used and cooperated with EASInet. Last not least we thank everybody who is (or was before) in GMD's project team: Detlef Straeten, Willi Porten, Stefan Fassbender, Lothar Klein, Irene Schulz and Juan Pizzorno. Hello to everybody - we are out of EASInet but - of cause - we are still busy in networking. Best regards, Klaus Birkenbihl Peter Wunderling Manager Project Manager EASInet Center for Science Networks PS.: This is an informal note of GMD's Center for Science Networks. An official statement will be given by IBM. -+-----------------------------------------------------------------------+- + Center for Science Networks Fax.: +49 2241 14 3002 + + GMD-ISA Tel.: +49 2241 14 3177 + + Rathausallee 10 + + D-5205 Sankt Augustin 1 + + GERMANY + -+-----------------------------------------------------------------------+-

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Network Services Conference 92
by chang＠cam.nist.gov 02 Dec '92

02 Dec '92

Hi, I just wondering is there any proceeding or published paper for your Network Services Conference 92 held on Nov. 3-5? Any pointers are appreicated. Thanks! --Wo Chang <wchang(a)nist.gov>

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re: RIPE DNS Hostcount November 1992
by Vasco Freitas 02 Dec '92

02 Dec '92

> - Portugal (PT) is a bit more serious, since not one machine inside Portugal > could be contacted. It seems that they have lost all connectivity to the > outside world. Yes, it was unfortunate that this month's count coincided exactly in time with a problem we had with the RCCN's connection to IXI over which we run the IP link. As you see, here is this message.. Nothing serious. Cheers = Vasco

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