Research on Gigabit Gateways: Access to Future Public Switched Networks
Project Award Date: 1992
Gateways between local area, high speed connectionless (CL) networks and connection oriented (CO) wide area B-ISDN do not exist today. This research is focusing on advancing the state of the art in gateways that connect high speed CL premises equipment and long distance CO networks.
A 622 Mbps (OC-12 SONET) gateway is being designed and implemented to interconnect experimental DEC AN2 Gigabit LAN switches at the University of Kansas with the MAGIC testbed. All required hardware and software for the gateway will be developed and integrated into the testbed. We are addressing issues related to the control of high capacity LANs and B-ISDN networks as well as signaling, protocol integration, protocol internetworking, and multiple protocol environments. New dynamic mechanisms to control and manage high speed CL to CO connections are being developed and incorporated into this gateway. Implementation of these mechanisms will require that issues related to the effects of network propagation delay (latency) on dynamic network control, provisioning of bandwidth-on-demand services, premises-to-premises capacity assignment, and real time estimation of available network capacity be addressed. When ATM switching equipment is added in MAGIC, the interworking of the AN2 Gigabit LAN with an ATM Switch will be achieved. The testbed will then provide an environment for research on B-ISDN signaling among customer premises equipment, access interfaces, and the Gigabit network. Experiments will be conducted using the developed gateway to research the capabilities of Gigabit LAN/WAN systems. Gateway experiments will be focused on two issues: distributed interaction with the specific MAGIC terrain visualization application and high speed networking in a heterogeneous environment. Traffic characterizations will be developed based on measurements from the network.
Primary Sponsor(s): ARPA, Digital, Sprint, Northern Telecom/BNR, Southwestern Bell, Kansas Technology Enterprise Corporation