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KTHLAN is the common computer network for all the schools,
departments and institutes belonging to KTH. There are about 40
departments with over 10 000 computers connected via around 550
switches and 10 routers to KTHLAN. The net uses fiber to connect the
main campus in Stockholm city and the sattelite schools in Kista,
Haninge, Södertälje. We also have fiber to all the main
buildings on the central campus up to the corridor level. The network
is connected via two 100 Mbit/s connections to SUNET and NORDUNET via
KTHNOC.
The main
network technology used is Ethernet and Fast
Ethernet. The backbone is made up of a Gigabit Ethernet (1000
Mbit/s) between the main routers and Fast Ethernet as a backup. Every
department normally has two connections to the central (Cisco) routers ensuring redundancy
and reasonable privacy within each department.
Only the backbone net is completely maintained by the KTHLAN staff. It is the responsibility of each department to install and maintain their own local department network, but a central watch is kept on all local switches so that errors etc can be found by the central group. To ensure compatibility, all installations and planning should be coordinated with the KTHLAN staff. Only recommended network equipment (switches) should be connected to the network. (currently Cisco catalyst-3524 and HP Procurve-2524).
Last update: "01-09-07"
