External telecommunication channels

At present JINR leases 30 Mb/s channel to Moscow from the Russian Satellite Communications Company (RSCC "Dubna"); thus JINR has access to the Russian networks and information resources (up to 30 Mb/s) as well as access to the international channel through shared RBNet in the common data stream and up to 1 Mb/s granted bandwidth.

Table 1 shows the incoming JINR traffic for year 2001 (total 4.15 TB) distribution among the JINR divisions. The University of Dubna (Uni-Dubna) and the modem pool (Tables 1 and 2) take a noticeable share in the common traffic.

Table 1. JINR incoming traffic ( > 25 GB and %)
LIT+

proxy+

servers

FLNR DLNP Univ.

Dubna

Modem

pool

LHE BLTP LPP FLNP Adm. UC
1500

36 %

768.45

18 %

369

8.7 %

302

7.1 %

249

5.8 %

237

5.6 %

228

5.4 %

222

5.2 %

121

2.8 %

74

1.7 %

26

0.6 %

Table 2. JINR modem pool statistics (hours and %)
FLNP DLNP Adm. FLNR LHE LIT LPP Others BLTP
12930

20.88 %

10778

17.41 %

9236

14.92 %

7930

12.81 %

7337

11.85 %

6552

10.58 %

3965

6.40 %

1096

1.77 %

216

0.35 %

The further perspectives of the improvement of the JINR computer telecommunications are related to the development in Russia of the system of international channels for science and education, to the develop-ment of the high-speed network infrastructure, especially for nuclear physics centres, and to the extension of cooperation with RBNet and the Russian Satellite Communications Company and its branch in Dubna.

By order of JINR Director, a committee has been set up to learn the needs of the scientific programme for particle physics in computer communications and to work out recommendations on improving the operation of the computer communication links. The construction of dedicated channels to CERN and DESY is an urgent task (Fig. 1).



Fig. 1. JINR telecommunication channels

Systematic work on the LAN management was performed by the Network Operation Centre (http://noc.jinr.ru/). To make operation of the central mail server @jinr.ru more comfortable and reliable, a number of new services have been provided for its users: e-mail stream antivirus check-up, mail pseudonyms, protection from commercial and undesired messages (SPAM). One can use the www-interface https://webmail.jinr.ru/ for fast access to mailboxes. The interface is a multi-language one (Russian, English, etc.). The access through the webmail seems more preferable for the users outside the JINR network.

In 2001, JINR received the License on data transfer services and now the Reglament and the Rules on user connection to JINR data transfer links are in preparation.

© Laboratory of Information Technologies, JINR, Dubna, 2002
T.Strizh