Patent application number | Description | Published |
20090262735 | PACKET TRANSFER CONTROLLING APPARATUS AND PACKET TRANSFER CONTROLLING METHOD - A packet transfer controlling apparatus includes a depth storage unit that stores a pattern and a depth in association with each other. When accepting a setting of the pattern, the apparatus searches the depth storage unit by using the accepted pattern to obtain the depth stored in association with the pattern, thereby deriving the depth of the information to be extracted from the input packet. Upon accepting the input of the packet, information is extracted sequentially from the head of the packet. The apparatus determines whether the extracted information is positioned at a location deeper than the derived depth. When determining that the extracted information is not yet positioned at a location deeper than the derived depth, the apparatus continues extraction of information. When determining that the extracted information is positioned at a location deeper than the depth, the apparatus ends extraction of information. | 10-22-2009 |
20100128736 | PACKET PROCESSING APPARATUS, NETWORK EQUIPMENT AND PACKET PROCESSING METHOD - A packet processing apparatus includes a static pattern matcher comparing pattern information defining a packet to be filtered with a value regarding at least a part of a received packet, the pattern information being stored by a pattern information manager. A frequency calculator calculates the frequency of matching by the static pattern matcher. A dynamic pattern matcher matches the frequency and a preset comparison value and a processing determiner determines a processing on the received packet based upon the dynamic pattern match. | 05-27-2010 |
20100316057 | Relay device suppressing frame flooding - In a relay device, a first memory stores correspondence information representing a correspondence relationship between a node and a port. A second memory stores information by which a port to suppress flooding of a frame is distinguishable. A relay part limits a port, which floods a frame addressed to a node of which information is not stored in the first memory, based on the information stored in the second memory. | 12-16-2010 |
20110110369 | RELAY DEVICE - A disclosed relay device includes a port group determining unit for associating group identification information indicating combinations of ports set up in a receive port with the frame, a relay unit learning a correspondence between the receive port and a node which is a transmission source and determining a transmit port from which the frame is transmitted based on the learnt correspondence, a port group membership memory unit storing a membership information piece indicative of the plurality of combinations of ports, and a filtering unit limiting the transmit port, wherein the port group determining unit associates the group identification information to the received frame when group identification information has been given, and the filtering unit does not limit the transmit port when the learnt correspondence includes the receive port corresponding to the transmit port and the node which is the transmission source corresponding to a destination of the received frame. | 05-12-2011 |
20120057590 | RELAY SYSTEM, RELAY APPARATUS, AND RELAY METHOD - A relay system includes a first relay apparatus connected to a node through a first line and a second relay apparatus connected to the node through a second line. The first line and the second line belong to the same link aggregation group. The first relay apparatus includes a first control unit. The first control unit notifies, before relaying a received frame, the second relay apparatus of a source address included in the received frame in the absence of first relation information related to the source address in the first storage unit upon receiving the received frame via a port connected to the first line. The second relay apparatus includes a second control unit. The second control unit stores, in the second storage unit, second relation information regarding a relationship between the source address notified by the first relay apparatus and an output port connected to the second line. | 03-08-2012 |
20120195308 | COMMUNICATION PROCESSING APPARATUS AND ADDRESS LEARNING METHOD - A communication processing apparatus includes a first storage unit, a second storage unit, and a processor. The first storage unit stores, for each of a plurality of port identifiers, a port identifier and a network identifier in association with each other. The second storage unit stores address information and a set of port identifiers in association with each other. The processor extracts a first network identifier associated with a first port identifier for identifying a reception port from the first storage unit, extracts second port identifiers associated with the extracted first network identifier from the first storage unit, and stores source address information of the received data and a first set of port identifiers in association with each other in the second storage unit. The first set of port identifiers includes the first port identifier and the extracted second port identifiers. | 08-02-2012 |
20130094513 | RELAY APPARATUS AND CONTROL METHOD - A relay apparatus includes a first data storage unit and a processor. The first data storage unit stores an output port identifier in connection with a combination of a port identifier and a communication type identifier. The processor obtains, when a frame is received, a first output port identifier corresponding to a combination of a port identifier of a port that received the frame and a communication type identifier included in the received frame by use of the first data storage unit to output the received frame to a port identified by the first output port identifier. | 04-18-2013 |
20130107890 | BUFFER MANAGEMENT OF RELAY DEVICE | 05-02-2013 |
20130242723 | DATA PROCESSING APPARATUS, DATA TRANSCEIVER APPARATUS, AND METHOD FOR CONTROLLING DATA TRANSMISSION AND RECEPTION - A relay device is capable of associating a plurality of network-side ports to a server-side port connected to an adapter | 09-19-2013 |
20140064284 | ETHERNET SWITCH AND COMMUNICATION METHOD - An Ethernet switch which is connected to a plurality of external devices using an encapsulating I/O protocol over Ethernet, and is connected to a I/O protocol switch using N_Port ID virtualization includes: a storage unit which stores destination information describing an external device whose connection is established in the FCoE in the plurality of external devices; and a processor. When the processor receives a packet addressed from a first external device to a second external device in the external devices, the processor checks whether or not the destination information describes the second external device. When the second external device is described in the destination information, the processor transmits the packet to the second external device. | 03-06-2014 |
20140286175 | APPARATUS AND METHOD FOR CONTROLLING PACKET TRANSFER - An apparatus includes a plurality of receiving ports and a plurality of transmitting ports. The apparatus stores, in a memory thereof, transfer control information for transferring a packet to a node that is able to transfer the received packet, and monitors packets received via the plurality of receiving ports. Upon receiving a first packet conforming to a predetermined communication protocol and containing a frame including destination information being registered in the transfer control information, the apparatus rewrites a header of the first packet, based on the transfer control information, and transmits the first packet whose header has been rewritten via corresponding one of the plurality of transmitting ports indicated by the transfer control information. | 09-25-2014 |