公开(公告)号：US20030147413A1

公开(公告)日：2003-08-07

申请号：US10376659

申请日：2003-02-28

Applicant: Emulex Corporation, a California corporation

Inventor： Karl M. Henson

IPC: H04L012/28

CPC classification number: H04L12/433 ,  H04L1/00 ,  H04L1/0082 ,  H04L25/4908 ,  H04L2001/0097

Abstract: A system and method of sanitizing a data frame from a node in a network loop includes receiving the data frame from the node, and, when the data frame includes invalid data, replacing a first word of the invalid data with a frame termination primitive and subsequent words of the invalid data with buffer data.

公开(公告)号：US20010028657A1

公开(公告)日：2001-10-11

申请号：US09849102

申请日：2001-05-04

Applicant: Emulex Corporation

Inventor： David Brewer ,  Karl M. Henson ,  Hossein Hashemi ,  David Baldwin

IPC: H04J001/16

CPC classification number: H04L12/437 ,  H04B10/038

Abstract: A loop network hub port with an automatic bypass feature. The automatic bypass feature causes the hub port to enter a bypass mode upon detection of a specified loop failure initialization sequence from a node port attached to the hub port. The hub port does not propagate loop failure initialization data generated by the attached node port upon the failure of a data channel from the hub port to the node port. The hub port replaces loop failure initialization data received from the node port with buffer data and conceals the node port failure from the remainder of the loop. Upon detection of the loop failure initialization sequence received from the attached node port, the hub port enters a bypass mode and maintains that bypass mode until a recovery sequence is received from the node port. At that point, the hub port reinserts the node port into the loop.

公开(公告)号：US20010002901A1

公开(公告)日：2001-06-07

申请号：US09774428

申请日：2001-01-30

Applicant: Emulex Corporation

Inventor： Karl M. Henson

IPC: H04L001/00

CPC classification number: H04L12/433 ,  H04L1/00 ,  H04L1/0082 ,  H04L25/4908 ,  H04L2001/0097

Abstract: Methods and apparatus for implementing a technique for sanitizing data frames in a network loop. In a preferred implementation, a port for connecting a node to a network loop includes a detect element, where the detect element monitors data from the node and sets an error flag when invalid data is received at the port; a frame termination generator, which generates frame termination primitives; a buffer data generator, which generates buffer data; a switching element having a control input, an output, and a plurality of data inputs, where each of an output of the node, the upstream node, the frame termination generator, and the buffer data generator is connected to a corresponding data input; and a control element connected to the detect element and the control input of the switching element, where the control element selects, according to the error flag, one of the data inputs of the switching element to connect to the output of the switching element to be output by the port to a downstream node, and the control element terminates a current data frame by selecting the data input corresponding to the frame termination generator when the error flag indicates the current data frame includes invalid data.

Abstract translation: 用于实现网络环路中数据帧消毒技术的方法和装置。 在优选实现中，用于将节点连接到网络环路的端口包括检测元件，其中检测元件监视来自节点的数据，并且在端口处接收到无效数据时设置错误标志; 帧终止生成器，其生成帧终止原语; 缓冲数据生成器，生成缓冲器数据; 具有控制输入，输出和多个数据输入的开关元件，其中节点的输出，上游节点，帧终止发生器和缓冲数据发生器中的每一个连接到相应的数据输入; 以及连接到所述检测元件和所述开关元件的控制输入的控制元件，其中所述控制元件根据所述误差标志来选择所述开关元件的数据输入中的一个连接到所述开关元件的输出 由端口输出到下游节点，并且当错误标志指示当前数据帧包括无效数据时，控制元件通过选择对应于帧终止发生器的数据输入来终止当前数据帧。