Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: In an FDB provided for a switch, line information associated with MAC address information is managed separately for sending destination line information and receiving discrimination line information, and provides an incompatibility permission flag of permitting that they are different. Also, a function of rewriting the sending destination line information with a command from a manager is provided and linked with the change of the incompatibility permission flag. While the traffic is moved to a new line at the time of the line switching, this incompatibility is permitted, and even if a frame is received from an old line, the receiving line is not updated based on the frame.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: In an FDB provided for a switch, line information associated with MAC address information is managed separately for sending destination line information and receiving discrimination line information, and provides an incompatibility permission flag of permitting that they are different. Also, a function of rewriting the sending destination line information with a command from a manager is provided and linked with the change of the incompatibility permission flag. While the traffic is moved to a new line at the time of the line switching, this incompatibility is permitted, and even if a frame is received from an old line, the receiving line is not updated based on the frame.

Abstract: A packet communication apparatus sends an authentication request packet received from a user terminal to an authentication server. If a packet received from the authentication server is an authentication packet for the user terminal, an authentication controller executes authentication processing of the authentication packet. If the authentication packet includes connection limit information for the user terminal, a connection limit controller sets the connection limit information to the user terminal. According to the connection limit information, the packet communication apparatus sends the packet received from the user terminal to a quarantine server disposed to quarantine the user terminal.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A routing apparatus includes a plurality of routing units and function units. The routing unit receives a packet from each port, and uses header information contained in the packet to judge whether the packet should be transmitted to the function unit. In the case where the packet should be transmitted to the function unit, the routing unit adds a first identifier to the packet and transmits it to a transmission unit. The function unit receives the packet containing the first identifier from the transmission unit, and executes a predetermined processing for the packet. The function unit adds a second identifier to the packet and transmits it to the transmission unit.

Abstract: A packet communication apparatus sends an authentication request packet received from a user terminal to an authentication server. If a packet received from the authentication server is an authentication packet for the user terminal, an authentication controller executes authentication processing of the authentication packet. If the authentication packet includes connection limit information for the user terminal, a connection limit controller sets the connection limit information to the user terminal. According to the connection limit information, the packet communication apparatus sends the packet received from the user terminal to a quarantine server disposed to quarantine the user terminal.

Abstract: There is provided a packet routing apparatus for performing an IP additional function processing for a packet in the middle of a packet routing processing without damaging the high speed characteristic of the packet routing processing. A unique address is determined for each of function accelerators 11 to 14 in the inside of an extended function module 6, the unique address is added to a packet by a physical address lookup unit 105, and a data distribution unit 112 distributes the packet to the function accelerator corresponding to the unique address.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A routing apparatus includes a plurality of routing units and function units. The routing unit receives a packet from each port, and uses header information contained in the packet to judge whether the packet should be transmitted to the function unit. In the case where the packet should be transmitted to the function unit, the routing unit adds a first identifier to the packet and transmits it to a transmission unit. The function unit receives the packet containing the first identifier from the transmission unit, and executes a predetermined processing for the packet. The function unit adds a second identifier to the packet and transmits it to the transmission unit.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.

Abstract: A routing apparatus includes a plurality of routing units and function units. The routing unit receives a packet from each port, and uses header information contained in the packet to judge whether the packet should be transmitted to the function unit. In the case where the packet should be transmitted to the function unit, the routing unit adds a first identifier to the packet and transmits it to a transmission unit. The function unit receives the packet containing the first identifier from the transmission unit, and executes a predetermined processing for the packet. The function unit adds a second identifier to the packet and transmits it to the transmission unit.

Abstract: In a method of distributing frame to a line during line aggregation communications, a transmission side data processing apparatus selects a line to which a frame is transmitted, so that the transmission data amounts of respective lines become uniform. Order information is inserted into the transmission frame and the frame is transmitted to the selected line. A reception side data processing apparatus sequentially executes a reception process for a received frame in accordance with the order information derived from each received frame.

Abstract: A routing apparatus includes a plurality of routing units and function units. The routing unit receives a packet from each port, and uses header information contained in the packet to judge whether the packet should be transmitted to the function unit. In the case where the packet should be transmitted to the function unit, the routing unit adds a first identifier to the packet and transmits it to a transmission unit. The function unit receives the packet containing the first identifier from the transmission unit, and executes a predetermined processing for the packet. The function unit adds a second identifier to the packet and transmits it to the transmission unit.

Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.