Campus Data Networking Architecture:
Alternative B'
Selective ATM
This alternative allows the campus to migrate more slowly to ATM for inter-building connections.
Major features include:
Inter-building backbone: Central hub starts to migrate to ATM switch coupled with a "super router" to route between subnets. Routing switches at the core start to distribute routing load. Some routers stay on old FDDI backbone providing connections for some buildings. Some direct ATM connections to core permitted as routing switches begin to migrate to buildings.
Intra-building backbone: Buildings are connected to the backbone via 10 Mb/sec or 100+ Mb/sec technology (FDDI or fast ethernet) for increased bandwidth. Some buildings are connected to the backbone directly via ATM and have edge routers installed. Ethernet or fast ethernet switches deployed in all buildings reduce the size of the collision domain and provide a scalable building interconnection.
Please address comments or questions to Dr. Noam Arzt, arzt@isc.upenn.edu [6/18/96]
URL: http://nextb.dccs.upenn.edu/noam/questnet96/arch/alt-b1.html