Abstract: 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.

Abstract: An apparatus calculates, from information included in a packet, a first value that is used to select a path through which the packet is to be transmitted to a destination apparatus. When the packet is a detection packet used to detect a fault in a communication path to the destination apparatus, the apparatus obtains a second value by performing calculation on the first value and a variable value that is changed each time the detection packet is transmitted, and adds an outer header including the second value to the packet. The apparatus adds an outer header including the first value to the packet when the packet is not a detection packet. The apparatus transmit the packet to which the outer header has been added, to the destination apparatus.

Abstract: A plurality of internal queues that receives and stores therein packets and that outputs each of the stored packets is included. Then, a transmission side meter counter and a reception side meter counter acquire transmission/reception information on the packets that are stored in each of the internal queues. A control unit creates, on the basis of the transmission/reception information, flow groups to each of which one or a plurality of flows belongs and allocates the internal queues to the flow groups. A scheduler determines, on the basis of the transmission/reception information and previously determined priority of the internal queues, the order in which each of the internal queues is output.

Abstract: A switch device includes: a first relay circuit deciding a transmission port to which the frame of the first communication is output, when the received frame is the first communication; a processor deciding a transmission port corresponding to a destination address of the received frame, and generating a second relay table including information for identifying the transmission port corresponding to the destination address of the received frame; and a second relay circuit deciding a transmission port to which the frame of the second communication is output, as the transmission port to which the frame of the second communication is output, a transmission port corresponding to the destination address of the received frame among the plurality of ports on the basis of the content of the second relay table, when the port that has received the frame of the second communication is an end port.

Abstract: 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.

Abstract: 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.

Abstract: A disclosed system includes plural switches, a node, and a management apparatus. The node includes: a transmitter that transmits an assignment request whose destination is the management apparatus. The management apparatus includes: a determination unit that determines whether an identifier can be assigned to the node, based on the assignment request; and a transmitter that transmits a response including an identifier assigned to the node. And a first switch that is a switch of the plural switches and relays the assignment request and the response includes: a making unit that makes settings for relaying a packet whose destination is the node; and a transmitter that transmits, to other switches belonging to a domain to which the first switch belongs, a setting request including the information on the logical link that received the assignment request and the identifier included in the response.

Abstract: An information processing system includes a plurality of nodes; a plurality of first switches respectively including information on a node to which the first switch is coupled; and a plurality of second switches respectively including information on an aggregation which the second switch is in charge of, wherein a first node transmits a first packet including destination information indicating that a destination is a second node, to a first switch coupled to the first node, and the first switch coupled to the first node transmits the first packet to a second switch that is in charge of an aggregation to which the second node belongs, when the second node is not coupled to the first switch, and the second switch transmits the first packet to a first switch coupled to the second node, and the first switch coupled to the second node transmits the first packet to the second node.

Abstract: To provide a switch device and a control method of the switch device which reduce a burden on a manager in an FCoE communication. A switch device relays the FCoE communication between a storage and a server disposed in an internal network and a FCF disposed in an external network. A reception port receives, from the FCoE, information of an external VLAN in the external network in response to a transmission request for information of a virtual network used in the FCoE communication. A protocol processing unit selects an internal VLAN, corresponding to the external VLAN, in the internal network. A transmission port notifies an end node of information of the internal VLAN as information of the VLAN used in the FCoE communication. A packet processing unit relays the FCoE communication between the end node and the FCF based on the internal VLAN and the external VLAN.

Abstract: 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.

Abstract: A switch device includes: a first relay circuit deciding a transmission port to which the frame of the first communication is output, when the received frame is the first communication; a processor deciding a transmission port corresponding to a destination address of the received frame, and generating a second relay table including information for identifying the transmission port corresponding to the destination address of the received frame; and a second relay circuit deciding a transmission port to which the frame of the second communication is output, as the transmission port to which the frame of the second communication is output, a transmission port corresponding to the destination address of the received frame among the plurality of ports on the basis of the content of the second relay table, when the port that has received the frame of the second communication is an end port.

Abstract: There is provided a relay device including: a buffer configured to store a received frame; a discarding unit configured to discard the received frame, when a utilization amount of the buffer exceeds a first value set corresponding to a communication type of the received frame; a first calculating unit configured to calculate the utilization amount of the buffer for each communication type at least two points in time, and calculate an amount of change in the utilization amount of the buffer for each communication type; and a setting unit configured to calculate the first value for each communication type, based on the amount of change in the utilization amount, and set the first value in the discarding unit.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: In a load balancing communication device and a load balance management device configuring a load balancing system, a storage holds, when the device is a load balancing communication device of a working system, working communication information of the device itself and protection communication information corresponding to working communication information of another or other load balancing communication devices of the working system, or holds, when the device is a load balancing communication device of a redundant system, protection communication information corresponding to working communication information of another or other load balancing communication devices of the working system, and a processing share management portion instructs, when communication processing is no longer performed with the working communication information in the load balancing communication device of the working system, a frame processor to perform communication processing by making the protection communication information correspon

Abstract: A relay device is capable of associating a plurality of network-side ports to a server-side port connected to an adapter 310 of a server 300. The relay device detects a failure and recovery from the failure as events for each of the network-side ports associated with the server-side port, and transmits to the server 300 a control frame indicating the network-side port in which the event was detected and the type of the event. The control frame is received by the adapter 310, and is processed by a link status management unit 320. The link status management unit 320 individually turns on/off an associated virtual interface 312a among virtual interfaces 312a configured on a virtual layer unit 312, in accordance with the control frame.

Abstract: There is provided a relay device including: a buffer configured to store a received frame; a discarding unit configured to discard the received frame, when a utilization amount of the buffer exceeds a first value set corresponding to a communication type of the received frame; a first calculating unit configured to calculate the utilization amount of the buffer for each communication type at least two points in time, and calculate an amount of change in the utilization amount of the buffer for each communication type; and a setting unit configured to calculate the first value for each communication type, based on the amount of change in the utilization amount, and set the first value in the discarding unit.

Abstract: 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.