home *** CD-ROM | disk | FTP | other *** search
- Subject: N-1-4-012.55
-
- ELTENET: The WAN of Eotvos Lorand University in Hungary
-
- Csaba Laszlo <h26csa%huella.bitnet@relay.eu.net>
- Laszlo Daruhazi, Ferenc Telbisz
- Information Technology Center, Eotvos Lorand University of
- Sciences
-
- As a part of HUNGARNET, the universities of Budapest play a
- significant role in networking in Hungary. There is an FDDI ring
- being set up in Budapest connecting the three biggest networks:
- Eotvos Lorand University of Sciences WAN, the University of
- Economic Sciences, and the Technical University. There are also
- significant efforts in networking in Debrecen where a MAN FDDI is
- to be set up and Szeged where a university MAN is operational.
- These networks are based on fiber optic technology.
-
- ELTENET is currently the biggest network. ELTE has more than 10
- main campuses with more than 60 buildings throughout Budapest, of
- which 20 buildings at 7 campuses are currently connected to the
- network. The idea of setting up ELTENET came in the summer of
- 1990 at the Faculty of Sciences. The Ministry of Education
- financed part of the project with additional support from the
- Mellon Foundation in the USA.
-
- Plans started to be worked out in the fall of 1990, with a final
- proposal accepted in the spring of 1991. The 12 km fiber
- backbone became operational in the spring of 1992. The total
- length of the coax cabling is about 12 km with more than 160
- segments. There are more than 30 fiber- and coax-based repeaters
- in the network.
-
- There are currently 2 AGS+ routers at the Network Services
- Center and three more at other campuses connected via 64 kbps
- leased lines and, in the future, with 64 kbps X.25 backup. The
- routing protocol is BGP to the autonomous system of the
- University of Vienna that is the Internet gateway and IGRP within
- the network. The network is in connected state to NSFNET,
- EASINET and RIPE. There are one Class B and two Class C addresses
- used on the network currently.
-
- The official protocol is the standard TCP/IP. Most PC
- installations use the public domain NCSA Telnet program but FTP
- Corporation's PC/TCP is also used. On the VAXes the Carnegie
- Mellon Univ. TCP/IP and DEC's UCX are used. As there are many
- Vaxes on the network DECNET is also used.
-
- The total number of hosts on the network is currently about 800.
- The vast majority of these are PCs. There are about 30 DEC
- machines among which the biggest one is the University's central
- VAX 6000-510 with 128 MB main memory and 6 GB disk capacity. The
- other large mainframe is an IBM 3090 with 128 MB memory and 35 GB
- disk space. There are a smaller number of IBM and DEC RISC-
- based workstation and some Sun Microsystem Sparcstations.
-