摘要:
A network system has: a communication device configured to perform frame transmission and reception; a network configured to transfer the frame; a gateway connected between the communication device and the network; and a controller configured to perform management of the communication device and the network. The frame is classified into a control frame for communicating control information necessary for communication and a data frame for communicating data between communication devices. The gateway determines whether a frame received from a source communication device is the control frame or the data frame, forwards the control frame to the controller, and forwards the data frame to the network. The controller performs the management based on the control frame received from the gateway. The network transfers the data frame received from the gateway to a destination communication device without through the controller.
摘要:
Disclosed is a system in which Aan NFA conversion meansunit 21, receives the number of simultaneous/parallel processing characters from an input device 1 and, using a one-character transition finite automaton description matrix stored in an NFA description matrix storage unit 31 and a description matrix which is stored in an NFA conversion result matrix storage unit 32 as an intermediate conversion result, converts the finite automaton to a finite automaton whose transition condition is described in the number of characters subjected to simultaneous/parallel processing. The NFA conversion means 21 sequentially stores the intermediate result in the NFA conversion result matrix storage unit 32. When the conversion is completed, a result output meansunit 22 reads the resulting NFA description matrix from the NFA conversion result matrix storage unit 32 and outputs it to an output device 4.
摘要:
A computer system includes a central processing unit (CPU), a plurality of dedicated processing units (DPUs) for transferring therebetween event descriptors for allocating CPU processings to the DPUs. The computer system includes a plurality of event controllers each associated a corresponding one of the DPUs or CPU. The event controller receives the event descriptors issued by the DPUs and enters the event descriptors in a representative-vent queue in the order of the priority of the event descriptors.
摘要:
A network system has: a communication device configured to perform frame transmission and reception; a network configured to transfer the frame; a gateway connected between the communication device and the network; and a controller configured to perform management of the communication device and the network. The frame is classified into a control frame for communicating control information necessary for communication and a data frame for communicating data between communication devices. The gateway determines whether a frame received from a source communication device is the control frame or the data frame, forwards the control frame to the controller, and forwards the data frame to the network. The controller performs the management based on the control frame received from the gateway. The network transfers the data frame received from the gateway to a destination communication device without through the controller.
摘要:
A transmission terminal has a plurality of congestion control units (RPs) each controlling a frame transmission rate. A switch arranged between the transmission terminal and a reception terminal has a plurality of congestion detection units (CPs) each generating a congestion information notification frame addressed to the transmission terminal. A plurality of routes exist between the transmission terminal and the reception terminal. The management computer manages a correspondence relationship between the routes and the RPs, assigns any of the routes to a flow, selects a RP associated with a route assigned to the flow, and notifies the transmission terminal and the switch of the flow and the selected RP. When the switch receives a frame belonging to the flow, a CP associated with the selected RP generates the congestion information notification frame addressed to the selected RP. The transmission terminal transmits a frame belonging to the flow through the selected RP.
摘要:
A protocol processing apparatus includes: a tag extracting section configured to output a tag data and an input data based on the input data and a protocol data of the input data; a format sheet configured to store a format data common to protocols; and a processing unit configured to refer to said format sheet to execute processes to the tag data and the input data based on the format data, and to output an execution result, and an output data. The tag data is defined for every type of protocol and is managed in a common format to protocols of a plurality of layers.
摘要:
A multiplex transmission system is disclosed in which, in the event of a problem between a converter and a client device on the transmitting side, the occurrence of this problem is reported to a converter on the receiving side without using specially dedicated frames. When a problem occurs between the converter on the transmitting side and an FC device on the transmitting side and the loss of optical input (LOS) or the loss of character synchronization (LCS) is detected, the converter on the transmitting side uses values that are not being used of the control character indicators of compression control codes in 64B/65B codes following 64B/65B conversion to transmit to the converter on the receiving side the alert information LOS or LCS. The converter on the receiving side, upon detecting this alert information, transmits a 10B-ERR signal or halts optical output to the FC device on the receiving side.
摘要:
A network system has: a node performing transmission/reception of a frame based on FCoE; a network; a controller performing management of the node and the network; and a gateway provided with respect to the node. The frame is classified into a control frame and a data frame. The gateway determines whether a frame received from the node is the control frame or the data frame, forwards the control frame to the controller, and forwards the data frame to the network. The controller performs the management based on the control frame received from the gateway. The network transfers the data frame received from the gateway to a destination node without through the controller. The node has a retransmission control and reordering unit configured to perform retransmission control and reordering processing with respect to the data frame.
摘要:
A network system has: a node performing transmission/reception of a frame based on FCoE; a network; a controller performing management of the node and the network; and a gateway provided with respect to the node. The frame is classified into a control frame and a data frame. The gateway determines whether a frame received from the node is the control frame or the data frame, forwards the control frame to the controller, and forwards the data frame to the network. The controller performs the management based on the control frame received from the gateway. The network transfers the data frame received from the gateway to a destination node without through the controller. The node has a retransmission control and reordering unit configured to perform retransmission control and reordering processing with respect to the data frame.
摘要:
Disclosed is a system in which Aan NFA conversion meansunit 21, receives the number of simultaneous/parallel processing characters from an input device 1 and, using a one-character transition finite automaton description matrix stored in an NFA description matrix storage unit 31 and a description matrix which is stored in an NFA conversion result matrix storage unit 32 as an intermediate conversion result, converts the finite automaton to a finite automaton whose transition condition is described in the number of characters subjected to simultaneous/parallel processing. The NFA conversion means 21 sequentially stores the intermediate result in the NFA conversion result matrix storage unit 32. When the conversion is completed, a result output meansunit 22 reads the resulting NFA description matrix from the NFA conversion result matrix storage unit 32 and outputs it to an output device 4.