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    • 1. 发明申请
    • DEVICE AND METHOD FOR PACKET INSPECTION
    • 分组检查的装置和方法
    • WO0156327A9
    • 2001-11-08
    • PCT/US0101002
    • 2001-01-11
    • CELOX NETWORKS INCMAHER MONIERSCHMID OTTO ANDREASBORDES JEAN PIERREHEGDE MANJUDAVIS CURTIS
    • MAHER MONIERSCHMID OTTO ANDREASBORDES JEAN PIERREHEGDE MANJUDAVIS CURTIS
    • H04L12/54H04L12/70H04Q11/04H04L12/56
    • H04Q11/0478H04L12/56H04L2012/5667
    • A method and device for packet inspection whereby packets presented via an interleaved cell stream can be inspected "on the fly" to identify, for example, the sequence of protocol encapsulations for each packet, as well as those portions of the packet which should be captured. The packet inspector is therefore capable of operating at high speeds. The packet inspector can also be used to inspect the payload portion of packets, if desired. A connection table look-up unit is used that accesses connection-based control data from a connection table for each cell input to the packet inspector. The look-up unit forwards the cell-specific control data to a data inspector via a forward control path, and the data inspector uses this control data when processing the associated cell. When processing of that cell is complete, the data inspector updates the associated control data to summarize its findings thus far, and then sends the updated control data back towards the look-up unit via a reverse control path for storage. When the next cell of the same packet is presented to the packet processor, the look-up unit retrieves and forwards the stored control data, which the data inspector uses to resumes the packet inspection process. A mechanism is also provided for replacing the control data for a cell propagating on the forward control path with updated control data that is propagating on the reverse control path.
    • 用于分组检查的方法和装置,其中可以“即时”检查经由交织的小区流所呈现的分组,以识别例如每个分组的协议封装的序列以及应该被捕获的分组的那些部分 。 因此,数据包检查器能够以高速运行。 如果需要,分组检查器也可以用于检查分组的有效载荷部分。 使用连接表查找单元,该连接表查找单元从连接表访问基于连接的每个单元输入到分组检查器的控制数据。 查找单元经由前向控制路径将小区特定控制数据转发到数据检查器,并且当处理相关联的小区时,数据检查器使用该控制数据。 当该单元的处理完成时,数据检查器更新关联的控制数据以总结其到目前为止的发现,然后经由反向控制路径将更新的控制数据发送回查找单元用于存储。 当相同分组的下一个小区被呈现给分组处理器时,查找单元检索并转发存储的控制数据,数据检查器使用该控制数据来恢复分组检查过程。 还提供了一种机制,用于用在反向控制路径上传播的更新的控制数据来替换在前向控制路径上传播的单元的控制数据。
    • 5. 发明申请
    • PARALLEL LCP SOLVER AND SYSTEM INCORPORATING SAME
    • 并行LCP解决方案和系统
    • WO2005074425A3
    • 2005-12-29
    • PCT/US2004030692
    • 2004-09-20
    • AGEIA TECHNOLOGIES INCZHANG LIHUATONGE RICHARDSEQUEIRA DILIPMAHER MONIER
    • ZHANG LIHUATONGE RICHARDSEQUEIRA DILIPMAHER MONIER
    • G06F19/00
    • G06F19/00
    • Use of CAM (50) illustrates one presently preferred scheme by which successful parallel execution of a LCP computational method is accomplished. In this regard, CAM (50) is a conventional circuit that functions as a type of specialized memory. ICU (51) logically controls and arbitrates the distribution of constraint rows from IPE memory 52 to a selected one of the plurality of executions units in accordance with data stored in CAM (50). That is, an island data set is transferred to IPE memory (52) from external memory 20 or directly from system (7). The island data set comprises a large collection of constraint rows defining the rigid body island. By careful utilization of CAM (50), data corresponding to a selected group of constraint rows is transferred from IPE memory (52) to a selected execution unit memory, e.g., VPU memory (54). Thereafter, the grouping or "subspace" of constraint rows is resolved in the corresponding execution unit.
    • CAM(50)的使用示出了一种目前优选的方案,通过该方案可以实现LCP计算方法的成功的并行执行。 在这方面,CAM(50)是作为专用存储器的一种类型的常规电路。 ICU(51)根据存储在CAM(50)中的数据逻辑地控制和仲裁从IPE存储器52到多个执行单元中的选定一个的约束行的分布。 也就是说,岛数据集从外部存储器20或直接从系统(7)传送到IPE存储器(52)。 岛数据集包括限定刚体岛的约束行的大集合。 通过仔细地利用CAM(50),对应于所选择的一组约束行的数据从IPE存储器(52)传送到所选择的执行单元存储器,例如VPU存储器(54)。 此后,约束行的分组或“子空间”在相应的执行单元中被解析。