专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

22. 发明授权

US06483831B1 Asynchronous transfer mode switch 有权
标题翻译：异步传输模式开关
公开(公告)号：US06483831B1
公开(公告)日：2002-11-19
申请号：US09188101
申请日：1998-11-09
申请人： Lars-Göran Petersen
发明人： Lars-Göran Petersen
IPC分类号： H04L1250
CPC分类号： H04L12/5601 , H04L49/106 , H04L49/1576 , H04L49/255 , H04L2012/5652 , H04L2012/5674 , H04L2012/5679
摘要： An asynchronous transfer mode (ATM) switch (20) has plural switch ports (24) connected by respective bidirectional links (27, 28) to a switch core (22). Connected to each switch port is a corresponding row column unit (40), each row column unit managing the writing of service cells to one row of cross point units (32) and the reading of service cells from one column of cross point units. The bidirectional links between each switch port and its corresponding row column unit of the switch core carry both service cells and control cells. Cells of differing sizes are carried on the bidirectional links between the switch core and the switch ports. Service cells have a differing cell size than the control cells, and the cell size of the service cells need not necessarily be uniform. Differing types of control cells—link connection control (LCC) cells and link synchronization control (LSC) cells are provided. The link connection control cells (LCC) are used e.g., to read and write control data into and from control registers of the switch core. The link connection control cells (LCC) include cells of two formats—a bitmapped format (for reading/writing with respect to bitmapped control registers) and a “coded” format (used for input/output operations for some bitmapped as well as non-bitmapped registers).
摘要翻译：异步传输模式（ATM）开关（20）具有通过相应双向链路（27,28）连接到交换机核心（22）的多个交换机端口（24）。连接到每个交换机端口的是相应的行列单元（40），每行列单元管理将服务单元写入一行交叉点单元（32），并从一列交叉点单元读取服务单元。交换机核心的每个交换机端口与其对应行列单元之间的双向链路同时携带业务单元和控制单元。交换机核心与交换机端口之间的双向链路承载不同大小的小区。服务小区具有与控制小区不同的小区大小，并且服务小区的小区大小不一定是一致的。提供了不同类型的控制单元 - 链路连接控制（LCC）单元和链路同步控制（LSC）单元。链路连接控制单元（LCC）例如用于从控制寄存器中读取和写入控制数据。链路连接控制单元（LCC）包括两种格式的单元格 - 位图格式（用于相对于位图控制寄存器进行读/写）和“编码”格式（用于某些位图和非映像格式的输入/输出操作）位图寄存器）。

IPRDB

热门服务

关于我们

友情链接

联系方式