The DECNIS 500/600 multiprotocol bridge/router and gateway
Stewart F. Bryant, David L. A. Brash · 1993
The DECNIS 500/600 high-performance multiprotocol bridge/router and gateway are described. The issues affecting the design of routers with this class of performance are outlined, along with a description of the architecture and implementation. The system described uses a distributed forwarding algorithm and a distributed buffer management algorithm executed on plug-in linecards to achieve scalable performance. An overview of the currently available linecards is provided, along with performance results achieved during system test. The DEC Network Integration Server 500 and 600 (DECNIS 500/600) products are general-purpose communications servers integrating multiprotocol routing, bridging, and gateway functions over an evolving set of local and wide area interfaces. The product family is designed to be flexible, offering a wide range of performance and functionality. The basic system consists of a Futurebus+ based backplane, a management processor card (MPC), and a packet random-access...