2002 - cesnet

Service Road Fibre Line In operationLine type distance length type Regeneration since[km] [km]Prague–Č. Budějovice colour 139 N/A 2.5 G supplier 22/2/01Liberec–H. Králové colour 96 N/A 2.5 G supplier 21/1/02Ostrava–H. Králové colour 247 N/A 2.5 G supplier 1/2/02Č. Budějovice–Brno colour 226 N/A 2.5 G supplier 22/5/02Prague–Liberec colour 108 N/A 2.5 G supplier 1/6/02Prague–Brno fibre 202 323.3 2.5 G 3×ONS 15104 10/1/00Brno–Olomouc fibre 81 124.3 2.5 G 1×ONS 15104 24/5/01Ostrava–Olomouc fibre 105 149.0 1 GE 1×Cisco 3512 7/1/02Pardubice–H. Králové fibre 22 30.0 1 GE no 15/1/02Prague–Pardubice fibre 114 188.6 1 GE * 17/5/02Prague–Plzeň fibre 80 176.7 2.5 G 1×ONS 15104 1/6/02Prague–Ústí n. L. fibre 92 169.6 1 GE * 10/9/02Table 4.3: Gigabit circuits of CESNET2Line Fibre length [km] BIP NIL UUPrague–Č. Budějovice colour No No NoLiberec–H. Králové colour No No NoOstrava–H. Králové colour No No NoČ. Budějovice–Brno colour No No NoPrague–Liberec colour No No NoPrague–Brno 323.3 Yes No NoBrno–Olomouc 124.3 Yes No NoOstrava–Olomouc 149 Yes No NoPrague–Plzeň 176.7 Yes No NoPardubice–H. Králové 30 Yes Yes YesPrague–Pardubice 188.6 Yes Yes YesPrague–Ústí n. L. 156.2 Yes Yes YesTable 4.4: Types of gigabit circuits of CESNET2As regards the development and operation of the network, an important aspectwas to what extent the circuit upgrade depends on the supplier. For the classificationof circuits, see Table 4.4. UU means a circuit which may be upgradedindependently by the user. NIL are circuits without elements in the line, and BIPsignals that the price for the circuit is independent of the bandwidth.The resulting topology is depicted on a figure from October 2002. Towards theend of 2002, the additional fibres for the Olomouc–Zlín line (70.2 km long) willbe put in operation for the deployment of a Gigabit Ethernet. It is obvious thatthe price for the lease of fibres along the Olomouc–Zlín line is much lower comparedto that for the Brno–Zlín line. The original 34 Mbps circuit from Prague toÚstí n. L was replaced by the Plzeň–Ústí n. L. one.48 High-speed National Research Network and its New Applications 2002