Annual Report 2003

    EXTERNAL TELECOMMUNICATION SYSTEMS

At present, JINR leases a 45 Mbps channel to Moscow from the Russian Satellite Communications Company (RSCC "Dubna"). JINR has access to the Russian networks and information resources (up to 45 Mbps computer communication link), as well as access to the international channel through shared RBNet in the common data stream 622 Mbps and in the granted 10 Mbps bandwidth. Figure 1 shows a present-day status of the external channels used by JINR.

Fig. 1. Current state of external communications in Russia used by JINR

Fig. 1. Current state of external communications in Russia used by JINR

Figure 2 shows the incoming and outgoing JINR traffic in 2003. Total incoming traffic was 19.89 TB (9.73 TB in 2002) and outgoing traffic was 24.43 TB (1.92 TB in 2002).

Fig. 2.

Fig. 2

Table 1 represents traffic distribution among the JINR subdivisions ( > 300 GB on incoming traffic).

Table 1
JINR's
subdivision
Incoming
traffic
Outgoing
traffic
Incoming
traffic, %
Outgoing
traffic, %
LIT 3,52 TB 7,92 TB 17,7 32,4
DLNP 2,84 TB 4,33 TB 14,28 17,72
Proxy+servers 2,68 TB 1,82 TB 13,47 7,44
FLNR 2,29 TB 1,36 TB 11,5 5,58
LPP 2,04 TB 849,15 GB 10,25 3,39
BLTP 1,65 TB 1,13 TB 8,28 4,63
VBLHE 1,64 TB 2,79 TB 8,23 12,00
Uni-Dubna 1,1 TB 539,37 GB 5,53 2,16
FLNP 984,96 GB 2,27 TB 4,84 9,31
Administr. 399,51 GB 761,21 GB 1,96 3,04

Systematic work on the JINR local area network (LAN) management was performed by the Network Operation Centre (http://noc.jinr.ru/). Up-to-date JINR LAN statistics can be found at http://noc.jinr.ru/inform/inf_main_stat.shtml.

 

© Laboratory of Information Technologies, JINR, Dubna, 2004
T.Strizh