公开(公告)号：WO1993026107A1

公开(公告)日：1993-12-23

申请号：PCT/US1993005322

申请日：1993-06-03

Applicant: WASHINGTON UNIVERSITY

Inventor： WASHINGTON UNIVERSITY ,  GADDIS, Michael, E. ,  BUBENIK, Richard, G. ,  COSTA, Pierre ,  MATSUURA, Noritaka

IPC: H04L12/46

CPC classification number: H04Q11/0478 ,  H04L12/4608 ,  H04L12/5601 ,  H04L12/66 ,  H04L49/90 ,  H04L49/901 ,  H04L2012/561 ,  H04L2012/5618 ,  H04L2012/5665

Abstract: An ATM-Ethernet portel/concentrator (Figure 3) permits a transparent interconnection between Ethernet segments over an ATM network to provide remote connectivity for Ethernet segments. The portal includes an Ethernet controllor (22) and an ATM cell processor, both of which receive and transmit data to and from a dual port shared memory (24) under control of a direct memory access controller. A control microprocessor (20) monitors and controls the shifting of data through the dual port memory (24). In this scheme, original data is written and read directly into and out of the dual port memory (24) to thereby eliminate any requirement for copying of data, to thereby significantly increase the data throughput capability of the portal. In the concentrator embodiment (Figure 12), a plurality of Ethernet controllers, each of which is connected to its own associated Ethernet segment, is multiplexed through the concentrator to an ATM network to thereby provide remote connectivity for each of the Ethernet segments.

Abstract translation: ATM-Ethernet Portel /集中器（图3）允许在ATM网络上的以太网段之间进行透明互连，为以太网段提供远程连接。 门户包括以太网控制器（22）和ATM信元处理器，两者都在直接存储器访问控制器的控制下接收和传送数据到双端口共享存储器（24）。 控制微处理器（20）监视和控制数据通过双端口存储器（24）的移位。 在该方案中，将原始数据直接写入和读出双端口存储器（24），从而消除对数据复制的任何要求，从而显着提高门户的数据吞吐能力。 在集中器实施例（图12）中，通过集线器将多个连接到其自己的相关联的以太网段的以太网控制器多路复用到ATM网络，从而为每个以太网段提供远程连接。